diff --git a/.classpath b/.classpath
deleted file mode 100644
index ac9ce57c2f4d3a99eb1868e101f3060156474663..0000000000000000000000000000000000000000
--- a/.classpath
+++ /dev/null
@@ -1,10 +0,0 @@
-
-
-
-
-
-
-
-
-
-
diff --git a/.gitignore b/.gitignore
index ae3c1726048cd06b9a143e0376ed46dd9b9a8d53..981aeb856a9b1b9235d497476e7847867227ce4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-/bin/
+/out
\ No newline at end of file
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..35410cacdc5e87f985c93a96520f5e11a5c822e4
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000000000000000000000000000000000000..c5821b56bc9bed2b92528b3017cef113441d16d5
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..639900d13c6182e452e33a3bd638e70a0146c785
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6e87dca2603b4700277c7e25d008f7da4d123c80
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,9 @@
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/uiDesigner.xml b/.idea/uiDesigner.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e96534fb27b68192f27f985d3879e173ec77adb8
--- /dev/null
+++ b/.idea/uiDesigner.xml
@@ -0,0 +1,124 @@
+
+
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+ -
+
+
+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+ -
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+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000000000000000000000000000000000000..35eb1ddfbbc029bcab630581847471d7f238ec53
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.project b/.project
deleted file mode 100644
index b7e8a74e9dd98bfb5b42b70cd6033510d6823948..0000000000000000000000000000000000000000
--- a/.project
+++ /dev/null
@@ -1,17 +0,0 @@
-
-
- java2022spring
-
-
-
-
-
- org.eclipse.jdt.core.javabuilder
-
-
-
-
-
- org.eclipse.jdt.core.javanature
-
-
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
deleted file mode 100644
index dbc27c5dc60ef7094a88953087ea0294b6c44a38..0000000000000000000000000000000000000000
--- a/.settings/org.eclipse.jdt.core.prefs
+++ /dev/null
@@ -1,14 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=17
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
-org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=17
diff --git a/java2022/java2022.iml b/java2022/java2022.iml
new file mode 100644
index 0000000000000000000000000000000000000000..6db0c464af6419e65c295cc9408a43279d15e30a
--- /dev/null
+++ b/java2022/java2022.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/java2022/src/calculator.java b/java2022/src/calculator.java
new file mode 100644
index 0000000000000000000000000000000000000000..394294da6a4c1741f2cca4aca3ec8b3d3c2792b2
--- /dev/null
+++ b/java2022/src/calculator.java
@@ -0,0 +1,283 @@
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class calculator extends JFrame implements ActionListener {
+ //创建面板对象用来放置编辑框和标签
+ private JPanel jPanel1=new JPanel();
+ private JPanel jPanel2=new JPanel();
+ private JPanel jPanel3=new JPanel();
+
+ //定义文本编辑框
+ private JTextField jTextField1;
+ //定义一个可变字符串，用来显示计算过程
+ StringBuffer str;
+ //x，y表示两个操作数
+ double x,y;
+ //用flag来表示运算符，0表示“+”，1表示“-”，2表示“*”，3表示“/”
+ int flag;
+ //创建一个有12个按钮的数组
+ private JButton jButton[]=new JButton[12];
+ //算数功能按钮
+ private JButton jButton1,jButton2,jButton3,jButton4,
+ jButton5,jButton6,jButton7, jButton8;
+
+ public calculator(){
+ super("我的计算器");
+
+ //建立计算器框架
+ Container c = getContentPane(); //创建内容面板
+ jTextField1=new JTextField("请进行计算",30);
+ jTextField1.setSize(15,30);
+ jTextField1.setEditable(false);//文本框不可编辑
+ jTextField1.setBackground(Color.white);//设置颜色
+
+ str =new StringBuffer();
+ jPanel2.add(jTextField1);
+ jPanel2.setLayout(new GridLayout(4,1));//设置布局
+
+
+ for (int i = 0; i < 10; i++) {
+ String s=""+i;
+ jButton[i]=new JButton(s);
+ //设置按钮的字体样式
+ jButton[i].setFont(new Font("楷体",Font.BOLD,15));
+ //注册监听器
+ jButton[i].addActionListener(this);
+ }
+
+ //将按钮实例化
+ jButton[10]=new JButton("-/+");
+ jButton[11]=new JButton(".");
+ jButton1=new JButton("+");
+ jButton2=new JButton("←");
+ jButton3=new JButton("-");
+ jButton4=new JButton("AC");
+ jButton5=new JButton("*");
+ jButton6=new JButton("√");
+ jButton7=new JButton("/");
+ jButton8=new JButton("=");
+
+
+ //设置按钮的前景色
+ for (int i = 0; i < 12; i++) {
+ jButton[i].setForeground(Color.black);
+ }
+ jButton1.setForeground(Color.red);
+ jButton2.setForeground(Color.blue);
+ jButton3.setForeground(Color.red);
+ jButton4.setForeground(Color.blue);
+ jButton5.setForeground(Color.red);
+ jButton6.setForeground(Color.red);
+ jButton7.setForeground(Color.red);
+ jButton8.setForeground(Color.blue);
+
+ //把按钮添加到面板上
+ jPanel1.add(jButton[1]);jPanel1.add(jButton[2]);jPanel1.add(jButton[3]);
+ jPanel1.add(jButton1);jPanel1.add(jButton2);
+ jPanel1.add(jButton[4]);jPanel1.add(jButton[5]);jPanel1.add(jButton[6]);
+ jPanel1.add(jButton3);jPanel1.add(jButton4);
+ jPanel1.add(jButton[7]);jPanel1.add(jButton[8]);jPanel1.add(jButton[9]);
+ jPanel1.add(jButton5);jPanel1.add(jButton6);
+ jPanel1.add(jButton[0]);jPanel1.add(jButton[10]);jPanel1.add(jButton[11]);
+ jPanel1.add(jButton7);jPanel1.add(jButton8);
+ jPanel1.setLayout(new GridLayout(4,5,5,5));
+
+
+ //注册按钮的监听器
+ jButton[10].addActionListener( this);
+ jButton[11].addActionListener( this);
+ jButton1.addActionListener(this);jButton2.addActionListener(this);
+ jButton3.addActionListener(this);jButton4.addActionListener(this);
+ jButton5.addActionListener(this);jButton6.addActionListener(this);
+ jButton7.addActionListener(this);jButton8.addActionListener(this);
+
+ //在容器上添加控件
+ c.add(jPanel2);
+ c.add(jPanel1);
+ c.add(jPanel3);
+ c.setLayout(new FlowLayout());//顺序布局
+
+ //初始化面板
+ setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ setVisible(true);
+ setSize(400,300);
+
+ }
+
+ public static void main(String[] args) {
+ //主方法创建窗口
+ try {
+ UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ calculator frame=new calculator();
+ frame.setBackground(Color.white);
+ }
+
+ public void actionPerformed(ActionEvent e){
+ //处理按钮事件
+ try {
+ //清零
+ if (e.getSource()==jButton4){
+ jTextField1.setText("0");
+ //对齐右边
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ str.setLength(0);
+ }
+ //点击“+/-”选择输入正负数
+ else if (e.getSource()==jButton[10]){
+ //将trim后词转换为双精度浮点数
+ x=Double.parseDouble(jTextField1.getText().trim());
+ jTextField1.setText(""+(-x));
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ }
+ //加号
+ else if (e.getSource()==jButton1) {
+ x=Double.parseDouble(jTextField1.getText().trim());
+ str.setLength(0);
+ y=0d;
+ flag =0;
+ }
+ //减号
+ else if (e.getSource()==jButton3) {
+ x=Double.parseDouble(jTextField1.getText().trim());
+ str.setLength(0);
+ y=0d;
+ flag =1;
+ }
+ //乘号
+ else if (e.getSource()==jButton5) {
+ x=Double.parseDouble(jTextField1.getText().trim());
+ str.setLength(0);
+ y=0d;
+ flag =2;
+ }
+ //除号
+ else if (e.getSource()==jButton7) {
+ x=Double.parseDouble(jTextField1.getText().trim());
+ str.setLength(0);
+ y=0d;
+ flag =3;
+ }
+ //等号
+ else if (e.getSource()==jButton8) {
+ str.setLength(0);
+ switch (flag) {
+ case 0 -> {
+ jTextField1.setText("" + (x + y));
+ //设置字体颜色样式，位置
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setFont(new Font("楷体", Font.BOLD, 10));
+ jTextField1.setForeground(Color.black);
+ }
+ case 1 -> {
+ jTextField1.setText("" + (x - y));
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setFont(new Font("楷体", Font.BOLD, 10));
+ jTextField1.setForeground(Color.black);
+ }
+ case 2 -> {
+ jTextField1.setText("" + (x * y));
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setFont(new Font("楷体", Font.BOLD, 10));
+ jTextField1.setForeground(Color.black);
+ }
+ case 3 -> {
+ jTextField1.setText("" + (x / y));
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setFont(new Font("楷体", Font.BOLD, 10));
+ jTextField1.setForeground(Color.black);
+ }
+ }
+ }
+ //"."按钮输入小数
+ else if (e.getSource()==jButton[11]) {
+ if (jTextField1.getText().trim().indexOf('.')!=-1) {
+
+ }
+ else{
+ if (jTextField1.getText().trim().equals("0")) {
+ jTextField1.setText(str.append(e.getActionCommand()).toString());
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ }
+ else if (jTextField1.getText().trim().equals("")) {
+
+ }
+ else {
+ jTextField1.setText((str.append(e.getActionCommand()).toString()));
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ }
+ }
+ y=0d;
+ }
+
+ //求平方根
+ else if (e.getSource()==jButton6) {
+ x=Double.parseDouble(jTextField1.getText().trim());
+ if (x<0) {
+ jTextField1.setText("数字格式异常");
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setForeground(Color.RED);
+ }
+ else {
+ double result=Math.sqrt(x);
+ jTextField1.setText(String.valueOf(result));
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setFont(new Font("楷体",Font.BOLD,10));
+ }
+ str.setLength(0);
+ y=0d;
+ }
+ else {
+ //选择了“0”按键
+ if(e.getSource()==jButton[0]) {
+ if (jTextField1.getText().trim().equals("0")){
+
+ }
+ else {
+ jTextField1.setText(str.append(e.getActionCommand()).toString());
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ y=Double.parseDouble(jTextField1.getText().trim());
+ }
+ }
+ else if (e.getSource()==jButton2) {
+ //如果显示的不是0
+ if (!jTextField1.getText().trim().equals("0")){
+ if (str.length()!=1){
+ jTextField1.setText(str.delete(str.length()-1,
+ str.length()).toString());
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ }
+ else {
+ jTextField1.setText("0");
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ str.setLength(0);
+ }
+ }
+ y=Double.parseDouble(jTextField1.getText().trim());
+ }
+ else {
+ jTextField1.setText(str.append(e.getActionCommand()).toString());
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ y=Double.parseDouble(jTextField1.getText().trim());
+ }
+ }
+
+
+ }
+
+ catch (NumberFormatException e1){
+ jTextField1.setText("数字格式异常");
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setForeground(Color.RED);
+ }
+ catch (StringIndexOutOfBoundsException e1){
+ jTextField1.setText("字符索引越界");
+ jTextField1.setHorizontalAlignment(JTextField.RIGHT);
+ jTextField1.setForeground(Color.RED);
+ }
+ }
+
+}
diff --git a/java2022spring.iml b/java2022spring.iml
new file mode 100644
index 0000000000000000000000000000000000000000..9a5cfcef63aeb6c73691f546497af36a69541a4e
--- /dev/null
+++ b/java2022spring.iml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/readme.md b/readme.md
deleted file mode 100644
index 4af16add33b576d095308a1888db35774618715d..0000000000000000000000000000000000000000
--- a/readme.md
+++ /dev/null
@@ -1,2 +0,0 @@
-# ѧ
-0103
\ No newline at end of file
diff --git a/src/java2022spring/Test.java b/src/java2022spring/Test.java
deleted file mode 100644
index 24deb29bfc0e5f50fdedcd21b504e77b529d48b6..0000000000000000000000000000000000000000
--- a/src/java2022spring/Test.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package java2022spring;
-
-public class Test {
- public static void main(String[] args) {
- System.out.println("Hello world!");
- }
-}