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LiangXiao
2019-12-21 22:52:07 +08:00
commit 00ae62ce9d
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14
.gitignore vendored Normal file
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*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/build
/captures
.externalNativeBuild
.cxx

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.idea/codeStyles/Project.xml generated Normal file
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<component name="ProjectCodeStyleConfiguration">
<code_scheme name="Project" version="173">
<codeStyleSettings language="XML">
<indentOptions>
<option name="CONTINUATION_INDENT_SIZE" value="4" />
</indentOptions>
<arrangement>
<rules>
<section>
<rule>
<match>
<AND>
<NAME>xmlns:android</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>^$</XML_NAMESPACE>
</AND>
</match>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>xmlns:.*</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>^$</XML_NAMESPACE>
</AND>
</match>
<order>BY_NAME</order>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>.*:id</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
</AND>
</match>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>.*:name</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
</AND>
</match>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>name</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>^$</XML_NAMESPACE>
</AND>
</match>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>style</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>^$</XML_NAMESPACE>
</AND>
</match>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>.*</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>^$</XML_NAMESPACE>
</AND>
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<order>BY_NAME</order>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>.*</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
</AND>
</match>
<order>ANDROID_ATTRIBUTE_ORDER</order>
</rule>
</section>
<section>
<rule>
<match>
<AND>
<NAME>.*</NAME>
<XML_ATTRIBUTE />
<XML_NAMESPACE>.*</XML_NAMESPACE>
</AND>
</match>
<order>BY_NAME</order>
</rule>
</section>
</rules>
</arrangement>
</codeStyleSettings>
</code_scheme>
</component>

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.idea/gradle.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<compositeConfiguration>
<compositeBuild compositeDefinitionSource="SCRIPT" />
</compositeConfiguration>
<option name="distributionType" value="DEFAULT_WRAPPED" />
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="resolveModulePerSourceSet" value="false" />
<option name="testRunner" value="PLATFORM" />
</GradleProjectSettings>
</option>
</component>
</project>

9
.idea/misc.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/build/classes" />
</component>
<component name="ProjectType">
<option name="id" value="Android" />
</component>
</project>

12
.idea/runConfigurations.xml generated Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="RunConfigurationProducerService">
<option name="ignoredProducers">
<set>
<option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
<option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
<option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
</set>
</option>
</component>
</project>

1
app/.gitignore vendored Normal file
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/build

28
app/build.gradle Normal file
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apply plugin: 'com.android.application'
android {
compileSdkVersion 29
defaultConfig {
applicationId "wang.xice.mycalculator"
minSdkVersion 16
targetSdkVersion 29
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
}

21
app/proguard-rules.pro vendored Normal file
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# Add project specific ProGuard rules here.
# You can control the set of applied configuration files using the
# proguardFiles setting in build.gradle.
#
# For more details, see
# http://developer.android.com/guide/developing/tools/proguard.html
# If your project uses WebView with JS, uncomment the following
# and specify the fully qualified class name to the JavaScript interface
# class:
#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
# public *;
#}
# Uncomment this to preserve the line number information for
# debugging stack traces.
#-keepattributes SourceFile,LineNumberTable
# If you keep the line number information, uncomment this to
# hide the original source file name.
#-renamesourcefileattribute SourceFile

27
app/src/androidTest/java/wang/xice/mycalculator/ExampleInstrumentedTest.java Normal file
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package wang.xice.mycalculator;
import android.content.Context;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Test;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertEquals;
/**
* Instrumented test, which will execute on an Android device.
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
@RunWith(AndroidJUnit4.class)
public class ExampleInstrumentedTest {
@Test
public void useAppContext() {
// Context of the app under test.
Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
assertEquals("wang.xice.mycalculator", appContext.getPackageName());
}
}

21
app/src/main/AndroidManifest.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="wang.xice.mycalculator">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

258
app/src/main/java/wang/xice/mycalculator/Calculator.java Normal file
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package wang.xice.mycalculator;
import java.util.ArrayList;
import java.util.Stack;
/**
* 计算输入的表达式
*/
public class Calculator {
public static String calculate(String downStr) throws Exception {
ArrayList<String> inOrderList = getStringList(downStr);
ArrayList<String> postOrderList = getPostOrderList(inOrderList);
double result = calPostOrderList(postOrderList);
if (result == Math.floor(result)) {
return (long) result + "";
}
return result + "";
}
/**
* 将字符串放入栈中 --- 中序表达式
* 按照 数字 符号 这种中序的顺序存入栈中
*
* @return ArrayList<String> 中缀表达式
*/
private static ArrayList<String> getStringList(String string) {
ArrayList<String> arrayList = new ArrayList<>();
String num = "";
String str = "";
for (int i = 0; i < string.length(); i++) {
if ((Character.isDigit(string.charAt(i))
|| string.charAt(i) == '.'
|| string.charAt(i) == 'e'
|| string.charAt(i) == 'π')) {
// 当前的字符串是否是数字或者是点号
num += string.charAt(i);
}else if(Character.isLetter(string.charAt(i))){
str += string.charAt(i);
} else {// 当前输入的字符不是数字或者点号
if (i == 0 && isSubOperator(string.charAt(i) + "")) {
// 当最后一次计算结果为负数时候，
//为输入的String第一位添加0 保证再次做减法的正确性
arrayList.add("0");
}
if (!str.equals("")) {
arrayList.add(str);
}
if (!num.equals("")) {
arrayList.add(num);
}
arrayList.add(string.charAt(i) + "");
str = "";
num = "";
}
}
if (!str.equals("")) {// 添加最后一个一元运算符
arrayList.add(str);
}
if (!num.equals("")) {// 添加最后一个数字
arrayList.add(num);
}
return arrayList;
}
/**
* 把中缀表达式转化成后缀表达式
*
* @param inOrderList ArrayList<String> 中缀表达式
* @return ArrayList<String> 后缀表达式
*/
private static ArrayList<String> getPostOrderList(ArrayList<String> inOrderList) {
ArrayList<String> postOrderList = new ArrayList<>();
Stack<String> operatorStack = new Stack<>();
for (int i = 0; i < inOrderList.size(); i++) {
String current = inOrderList.get(i);
if (current.equals("(")){// 如果是左括号
operatorStack.push(current); //直接入栈
}
else if (current.equals(")")){ //如果是右括号
while (!operatorStack.isEmpty() && !operatorStack.peek().equals("(")){ //将栈中的运算符全入栈 知道找到左括号
postOrderList.add(operatorStack.pop());
}
if (!operatorStack.isEmpty()) operatorStack.pop(); // 并将左括号出栈
}else if (isOperator(current)) {// 如果是运算符
while (!operatorStack.isEmpty() && compareLevel(operatorStack.peek(), current)) { // 判断优先级 进行入栈
postOrderList.add(operatorStack.pop());
}
operatorStack.push(current);
} else {// 如果不是运算符, 是数字或者是点号
postOrderList.add(inOrderList.get(i));
}
}
while (!operatorStack.isEmpty()) {
postOrderList.add(operatorStack.pop());
}
return postOrderList;
}
/**
* 比较运算符之间的优先级
* 比较当前运算符与运算符栈顶的运算符的优先级
* 若栈顶元算符优先级大于当前元算符则出栈，把运算符栈顶元素放入
* 后缀表达式栈中
* ---
* 若栈顶元算符优先级大于或等于当前元算符返回true
*
* @param stackTop String 栈顶运算符
* @param current String 当前运算符
* @return boolean 是否优先
*/
private static boolean compareLevel(String stackTop, String current) {
if (isOperator(stackTop) && !isSubOperator(stackTop)){ // sin cos啥的
return true;
}
if (isOperator(current) && !isSubOperator(current)){
return false;
}
if (stackTop.equals("*") && (current.equals("*")
|| current.equals("/")
|| current.equals("+")
|| current.equals("-"))) {
return true;
}
if (stackTop.equals("/") && (current.equals("*")
|| current.equals("/")
|| current.equals("+")
|| current.equals("-"))) {
return true;
}
if (stackTop.equals("+") && (current.equals("+")
|| current.equals("-"))) {
return true;
}
if (stackTop.equals("-") && (current.equals("-")
|| current.equals("+"))) {
return true;
}
return false;
}
/**
* 判断是否是运算符
*
* @return boolean 是否是运算符
*/
private static boolean isOperator(String string) {
return string.equals("+")
|| string.equals("-")
|| string.equals("*")
|| string.equals("/")
|| string.equals("sin")
|| string.equals("cos")
|| string.equals("log")
|| string.equals("tan");
}
/**
* 判断运算符前面是否应该有数
*
* @return boolean 是否是二元运算符
* */
private static boolean isSubOperator(String string) {
return string.equals("+")
|| string.equals("-")
|| string.equals("*")
|| string.equals("/");
}
/**
* 将含有e π 的字符串转成对应的数
*
* @return double 转化之后的数字
* */
private static double strToDouble(String s) {
switch (s){
case "e":
return Math.E;
case "π":
return Math.PI;
default:
return Double.parseDouble(s);
}
}
/**
* 计算后缀表达式
* 如果是数字或者点号直接存入到堆栈中，遇到运算符则弹出栈顶的两个元素
* 然后计算得到结果之后在存入栈中
*/
private static double calPostOrderList(ArrayList<String> postOrderList) throws Exception {
Stack<String> stack = new Stack<>();
for (int i = 0; i < postOrderList.size(); i++) {
String curStr = postOrderList.get(i);
if (isSubOperator(curStr)) {// 二元运算符 弹出栈顶的两个元素,然后进行计算,注意a是被操作数先弹出的a
double a = strToDouble(stack.pop());
double b = strToDouble(stack.pop());
double result = 0.0;
switch (curStr.charAt(0)) {
case '+':
result = b + a;
break;
case '-':
result = b - a;
break;
case '/':
if (a == 0) throw new Exception();
result = b / a;
break;
case '*':
result = b * a;
break;
}
stack.push(result + "");
}else if (isOperator(curStr)){ // 一元运算符仅需要弹出一个元素进行计算
double a = strToDouble(stack.pop());
double result = 0.0;
switch (curStr) {
case "sin":
result = Math.sin(a);
break;
case "cos":
result = Math.cos(a);
break;
case "tan":
result = Math.tan(a);
break;
case "log":
result = Math.log(a);
break;
}
stack.push(result + "");
} else {
stack.push(curStr);
}
}
return Double.parseDouble(stack.pop());
}
}

177
app/src/main/java/wang/xice/mycalculator/MainActivity.java Normal file
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package wang.xice.mycalculator;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import androidx.appcompat.app.AppCompatActivity;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
private String downStr = "";
private boolean last_input = false;// 上一次输入是否为等号
private ArrayList<Button> mButtons;
private EditText downText;// 显示计算的结果
private EditText upText;// 显示计算的式子
private LinearLayout keyboardLayout;
private LinearLayout displayLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
bindLayoutID();
setListener();
setButtonsStyle();
if (savedInstanceState != null) {
upText.setText(savedInstanceState.getString("upText"));
downText.setText(savedInstanceState.getString("downText"));
}
}
// 活动被回收时，保存临时数据
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putString("upText", upText.getText().toString());
outState.putString("downText", downText.getText().toString());
}
private void setButtonsStyle() {
WindowManager wm = (WindowManager) this.getSystemService(Context.WINDOW_SERVICE);
int screen_height = wm.getDefaultDisplay().getHeight();
keyboardLayout.getLayoutParams().height = screen_height / 2;
displayLayout.getLayoutParams().height = screen_height / 3;
for (int i = 0; i < mButtons.size(); i++) {
mButtons.get(i).setWidth(keyboardLayout.getWidth() / 4);
mButtons.get(i).setHeight(keyboardLayout.getHeight() / 5);
Log.d(TAG, "setButtonsStyle: " + mButtons.get(i).getWidth());
Log.d(TAG, "setButtonsStyle: " + mButtons.get(i).getHeight());
}
mButtons.get(0).setWidth( keyboardLayout.getWidth() / 2);
}
private void setListener() {
// 初始化数字按键等直接添加字符的按钮的点击监听事件
for (int i = 0; i < mButtons.size()-3; i++) {
final int index = i;
mButtons.get(i).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (last_input) {// 如果上一次输入的是等号，则再按数字键表示计算新的式子
downStr = "";
last_input = false;
}
downStr += mButtons.get(index).getText();
downText.setText(downStr);
downText.setSelection(downStr.length());
}
});
}
// 清除
mButtons.get(mButtons.size()-2).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
downStr = "";
downText.setText("0");
upText.setText("");
last_input = false;
}
});
// 退格
mButtons.get(mButtons.size()-1).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (downStr.length() == 0) {
return;
}
downStr = downStr.substring(0, downStr.length() - 1);
downText.setText(downStr);
downText.setSelection(downStr.length());
last_input = false;
}
});
// 等号
mButtons.get(mButtons.size()-3).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (last_input) {// 若上一次输入的是等号，则不做任何操作
return;
}
// 小动画
AnimationSet animationSet = new AnimationSet(true);
AlphaAnimation alphaAnimation = new AlphaAnimation(1f, 0f);
alphaAnimation.setDuration(200);
TranslateAnimation translateAnimation = new TranslateAnimation(0, 0, 0, -150f);
translateAnimation.setDuration(200);
animationSet.addAnimation(alphaAnimation);
animationSet.addAnimation(translateAnimation);
downText.startAnimation(animationSet);
animationSet.setAnimationListener(new Animation.AnimationListener() {
@Override
public void onAnimationStart(Animation animation) {
}
@Override
public void onAnimationEnd(Animation animation) {
// 在上面的editText显示计算表达式
upText.setText(downStr + "=");
upText.setSelection(downStr.length() + 1);
try {
downStr = Calculator.calculate(downStr);
downText.setText(downStr);
downText.setSelection(downStr.length());
} catch (Exception e) {
downText.setText("算式错误");
downStr = "";
}
}
@Override
public void onAnimationRepeat(Animation animation) {
}
});
last_input = true;
}
});
}
private void bindLayoutID(){
int[] mButtonsId = {R.id.num_0, R.id.num_1, R.id.num_2, R.id.num_3,
R.id.num_4, R.id.num_5, R.id.num_6, R.id.num_7,
R.id.num_8, R.id.num_9, //10
R.id.num_dot, R.id.sum, R.id.sub, R.id.multi,
R.id.divider,R.id.bracket_left,R.id.bracket_right,R.id.num_e,
R.id.num_pi,R.id.cos,R.id.sin,R.id.tan,R.id.log,
R.id.equl, R.id.clear, R.id.delete};
mButtons = new ArrayList<>();
for (int mButtonId: mButtonsId) mButtons.add((Button) findViewById(mButtonId));
upText = findViewById(R.id.editText1);
downText = findViewById(R.id.editText2);
keyboardLayout = findViewById(R.id.keyboard_area);
displayLayout = findViewById(R.id.layout_display);
}
}

34
app/src/main/res/drawable-v24/ic_launcher_foreground.xml Normal file
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<vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:aapt="http://schemas.android.com/aapt"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillType="evenOdd"
android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
android:strokeWidth="1"
android:strokeColor="#00000000">
<aapt:attr name="android:fillColor">
<gradient
android:endX="78.5885"
android:endY="90.9159"
android:startX="48.7653"
android:startY="61.0927"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
<item
android:color="#00000000"
android:offset="1.0" />
</gradient>
</aapt:attr>
</path>
<path
android:fillColor="#FFFFFF"
android:fillType="nonZero"
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android:strokeWidth="1"
android:strokeColor="#00000000" />
</vector>

5
app/src/main/res/drawable/caculator_button_background.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="false"
android:drawable="@drawable/caculator_button_normal" ></item>
</selector>

6
app/src/main/res/drawable/caculator_button_normal.xml Normal file
View File

@@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/colorCaculatorButton"></solid>
<stroke android:color="@color/colorc7c7c7"
android:width="@dimen/keyboard_divide_line"></stroke>
</shape>

170
app/src/main/res/drawable/ic_launcher_background.xml Normal file
View File

@@ -0,0 +1,170 @@
<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#008577"
android:pathData="M0,0h108v108h-108z" />
<path
android:fillColor="#00000000"
android:pathData="M9,0L9,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,0L19,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,0L29,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,0L39,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,0L49,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,0L59,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,0L69,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,0L79,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M89,0L89,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M99,0L99,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,9L108,9"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,19L108,19"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,29L108,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,39L108,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,49L108,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,59L108,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,69L108,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,79L108,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,89L108,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,99L108,99"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,29L89,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,39L89,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,49L89,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,59L89,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,69L89,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,79L89,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,19L29,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,19L39,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,19L49,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,19L59,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,19L69,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,19L79,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
</vector>

6
app/src/main/res/drawable/keyboard_background.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/keyboard_normal"
android:state_pressed="false">
</item>
</selector>

6
app/src/main/res/drawable/keyboard_normal.xml Normal file
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@@ -0,0 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/colorF1F1F1"></solid>
<stroke android:color="@color/colorc7c7c7"
android:width="@dimen/keyboard_divide_line"></stroke>
</shape>

58
app/src/main/res/layout/activity_main.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorWhite">
<LinearLayout
android:id="@+id/layout_display"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:background="@color/colorWhite"
android:orientation="vertical"
android:paddingLeft="@dimen/editText_padding"
android:paddingRight="@dimen/editText_padding">
<EditText
android:id="@+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@null"
android:cursorVisible="false"
android:gravity="right|center_vertical"
android:text=""
android:textColor="@color/colorc7c7c7"
android:textSize="@dimen/editNormal"/>
<EditText
android:id="@+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:background="@null"
android:cursorVisible="false"
android:focusableInTouchMode="false"
android:gravity="right|center_vertical"
android:singleLine="true"
android:text="0"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="@color/colorBlack"
android:textSize="@dimen/editBig"/>
</LinearLayout>
<LinearLayout
android:id="@+id/keyboard_area"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_gravity="bottom"
android:gravity="bottom">
<include
layout="@layout/keyboard"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
</FrameLayout>

188
app/src/main/res/layout/keyboard.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:stretchColumns="*">
<TableRow>
<Button
android:id="@+id/bracket_left"
android:background="@drawable/caculator_button_background"
android:text="("
android:textColor="@color/colorWhite" />
<Button
android:id="@+id/bracket_right"
android:background="@drawable/caculator_button_background"
android:text=")"
android:textColor="@color/colorWhite" />
<Button
android:id="@+id/sin"
android:background="@drawable/caculator_button_background"
android:text="sin"
android:textAllCaps="false"
android:textColor="@color/colorWhite" />
<Button
android:id="@+id/cos"
android:background="@drawable/caculator_button_background"
android:text="cos"
android:textAllCaps="false"
android:textColor="@color/colorWhite" />
</TableRow>
<TableRow>
<Button
android:id="@+id/clear"
android:background="@drawable/keyboard_background"
android:text="C"
android:textColor="@color/colorClear" />
<Button
android:id="@+id/delete"
android:background="@drawable/keyboard_background"
android:text="←"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/tan"
android:background="@drawable/caculator_button_background"
android:text="tan"
android:textAllCaps="false"
android:textColor="@color/colorWhite" />
<Button
android:id="@+id/log"
android:background="@drawable/caculator_button_background"
android:text="log"
android:textAllCaps="false"
android:textColor="@color/colorWhite" />
</TableRow>
<TableRow>
<Button
android:id="@+id/num_e"
android:background="@drawable/keyboard_background"
android:text="e"
android:textAllCaps="false"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_pi"
android:background="@drawable/keyboard_background"
android:text="π"
android:textAllCaps="false"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/remainder"
android:background="@drawable/caculator_button_background"
android:text="%"
android:textColor="@color/colorWhite" />
<Button
android:id="@+id/divider"
android:background="@drawable/caculator_button_background"
android:text="/"
android:textColor="@color/colorWhite" />
</TableRow>
<TableRow>
<Button
android:id="@+id/num_7"
android:background="@drawable/keyboard_background"
android:text="7"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_8"
android:background="@drawable/keyboard_background"
android:text="8"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_9"
android:background="@drawable/keyboard_normal"
android:text="9"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/multi"
android:background="@drawable/caculator_button_background"
android:text="*"
android:textColor="@color/colorWhite" />
</TableRow>
<TableRow>
<Button
android:id="@+id/num_4"
android:background="@drawable/keyboard_background"
android:text="4"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_5"
android:background="@drawable/keyboard_background"
android:text="5"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_6"
android:background="@drawable/keyboard_normal"
android:text="6"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/sub"
android:background="@drawable/caculator_button_background"
android:text="-"
android:textColor="@color/colorWhite" />
</TableRow>
<TableRow>
<Button
android:id="@+id/num_1"
android:background="@drawable/keyboard_background"
android:text="1"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_2"
android:background="@drawable/keyboard_background"
android:text="2"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_3"
android:background="@drawable/keyboard_normal"
android:text="3"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/sum"
android:background="@drawable/caculator_button_background"
android:text="+"
android:textColor="@color/colorWhite" />
</TableRow>
<TableRow>
<Button
android:id="@+id/num_0"
android:layout_span="2"
android:background="@drawable/keyboard_background"
android:text="0"
android:textColor="@color/colorNum" />
<Button
android:id="@+id/num_dot"
android:background="@drawable/keyboard_background"
android:text="."
android:textColor="@color/colorNum" />
<Button
android:id="@+id/equl"
android:background="@drawable/keyboard_normal"
android:text="="
android:textColor="@color/colorNum" />
</TableRow>
</TableLayout>

5
app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

5
app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>

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13
app/src/main/res/values/colors.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#008577</color>
<color name="colorPrimaryDark">#00574B</color>
<color name="colorAccent">#D81B60</color>
<color name="colorWhite">#ffffff</color>
<color name="colorF1F1F1">#f1f1f1</color>
<color name="colorc7c7c7">#c7c7c7</color>
<color name="colorClear">#96D16C</color>
<color name="colorNum">#6e6e6e</color>
<color name="colorCaculatorButton">#ffb9d796</color>
<color name="colorBlack">#000000</color>
</resources>

7
app/src/main/res/values/dimens.xml Normal file
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@@ -0,0 +1,7 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<dimen name="keyboard_divide_line">0.1dp</dimen>
<dimen name="editText_padding">16dp</dimen>
<dimen name="editNormal">30sp</dimen>
<dimen name="editBig">50sp</dimen>
</resources>

3
app/src/main/res/values/strings.xml Normal file
View File

@@ -0,0 +1,3 @@
<resources>
<string name="app_name">MyCalculator</string>
</resources>

11
app/src/main/res/values/styles.xml Normal file
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@@ -0,0 +1,11 @@
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
</resources>

20
app/src/test/java/wang/xice/mycalculator/CalculatorUnitTest.java Normal file
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@@ -0,0 +1,20 @@
package wang.xice.mycalculator;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
public class CalculatorUnitTest {
@Test
public void testCalculator() {
String str = "cosπ+loge";
try {
String calculate = Calculator.calculate(str);
assertEquals("0",calculate);
} catch (Exception e) {
e.printStackTrace();
fail();
}
}
}

17
app/src/test/java/wang/xice/mycalculator/ExampleUnitTest.java Normal file
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@@ -0,0 +1,17 @@
package wang.xice.mycalculator;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* Example local unit test, which will execute on the development machine (host).
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
public class ExampleUnitTest {
@Test
public void addition_isCorrect() {
assertEquals(4, 2 + 2);
}
}

27
build.gradle Normal file
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// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

20
gradle.properties Normal file
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# Project-wide Gradle settings.
# IDE (e.g. Android Studio) users:
# Gradle settings configured through the IDE *will override*
# any settings specified in this file.
# For more details on how to configure your build environment visit
# http://www.gradle.org/docs/current/userguide/build_environment.html
# Specifies the JVM arguments used for the daemon process.
# The setting is particularly useful for tweaking memory settings.
org.gradle.jvmargs=-Xmx1536m
# When configured, Gradle will run in incubating parallel mode.
# This option should only be used with decoupled projects. More details, visit
# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
# org.gradle.parallel=true
# AndroidX package structure to make it clearer which packages are bundled with the
# Android operating system, and which are packaged with your app's APK
# https://developer.android.com/topic/libraries/support-library/androidx-rn
android.useAndroidX=true
# Automatically convert third-party libraries to use AndroidX
android.enableJetifier=true

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gradle/wrapper/gradle-wrapper.properties vendored Normal file
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#Sat Dec 21 19:35:42 CST 2019
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip

172
gradlew vendored Normal file
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#!/usr/bin/env sh
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS=""
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin, switch paths to Windows format before running java
if $cygwin ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=$((i+1))
done
case $i in
(0) set -- ;;
(1) set -- "$args0" ;;
(2) set -- "$args0" "$args1" ;;
(3) set -- "$args0" "$args1" "$args2" ;;
(4) set -- "$args0" "$args1" "$args2" "$args3" ;;
(5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
(6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
(7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
(8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
(9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=$(save "$@")
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
cd "$(dirname "$0")"
fi
exec "$JAVACMD" "$@"

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gradlew.bat vendored Normal file
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@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS=
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto init
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto init
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:init
@rem Get command-line arguments, handling Windows variants
if not "%OS%" == "Windows_NT" goto win9xME_args
:win9xME_args
@rem Slurp the command line arguments.
set CMD_LINE_ARGS=
set _SKIP=2
:win9xME_args_slurp
if "x%~1" == "x" goto execute
set CMD_LINE_ARGS=%*
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

2
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include ':app'
rootProject.name='MyCalculator'