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/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..393386350584b5886347afb32886ff41bce41474
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,6 @@
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diff --git a/.idea/libraries/MigLayout.xml b/.idea/libraries/MigLayout.xml
new file mode 100644
index 0000000000000000000000000000000000000000..ab653dfbbaf2390c8e9ceb3e08b0265a2fd219bb
--- /dev/null
+++ b/.idea/libraries/MigLayout.xml
@@ -0,0 +1,16 @@
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diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
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--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
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\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
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--- /dev/null
+++ b/.idea/modules.xml
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\ 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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diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000000000000000000000000000000000000..35eb1ddfbbc029bcab630581847471d7f238ec53
--- /dev/null
+++ b/.idea/vcs.xml
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+
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\ No newline at end of file
diff --git a/classes/production/java2022spring/java2022spring/Calculator.class b/classes/production/java2022spring/java2022spring/Calculator.class
new file mode 100644
index 0000000000000000000000000000000000000000..8be9cffb9efb68c5a9704534244963688cc3f0ca
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diff --git a/classes/production/java2022spring/java2022spring/Main.class b/classes/production/java2022spring/java2022spring/Main.class
new file mode 100644
index 0000000000000000000000000000000000000000..11a5cf0a1e0765c7c3b08640def195ad3c15778c
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diff --git a/classes/production/java2022spring/java2022spring/Test.class b/classes/production/java2022spring/java2022spring/Test.class
new file mode 100644
index 0000000000000000000000000000000000000000..b5674a468b5ae1c1f323e527080ba64303f634c1
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diff --git a/java2022spring.iml b/java2022spring.iml
new file mode 100644
index 0000000000000000000000000000000000000000..a7a8a9da203a5d22daf6838e52a639771c95a796
--- /dev/null
+++ b/java2022spring.iml
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diff --git a/lib/miglayout-core-javadoc.jar b/lib/miglayout-core-javadoc.jar
new file mode 100644
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new file mode 100644
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diff --git a/lib/miglayout-swing-javadoc.jar b/lib/miglayout-swing-javadoc.jar
new file mode 100644
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diff --git a/lib/miglayout-swing-sources.jar b/lib/miglayout-swing-sources.jar
new file mode 100644
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diff --git a/lib/miglayout-swing.jar b/lib/miglayout-swing.jar
new file mode 100644
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diff --git a/readme.md b/readme.md
index 4af16add33b576d095308a1888db35774618715d..3ec439d206f8195801154372da3645b7ea8c26d5 100644
--- a/readme.md
+++ b/readme.md
@@ -1,2 +1,2 @@
-# ѧ
-0103
\ No newline at end of file
+# 科学计算器
+0103 张三
\ No newline at end of file
diff --git a/src/java2022spring/Calculator.java b/src/java2022spring/Calculator.java
new file mode 100644
index 0000000000000000000000000000000000000000..4597b05f82750d1272e7f5cabea264cd41415ffe
--- /dev/null
+++ b/src/java2022spring/Calculator.java
@@ -0,0 +1,325 @@
+package java2022spring;
+import javax.swing.*;
+ import java.awt.*;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.Objects;
+public class Calculator extends JFrame implements ActionListener {
+ JTextField text = new JTextField("");
+ private String str = "";//文本框内容字符串
+
+ public Calculator() {
+
+ setResizable(false);
+ setBounds(800, 200, 600, 800);//设置窗口出现位置和大小
+ setTitle("计算器");
+ setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//设置为点击×号关闭程序运行
+ this.setLayout(new BorderLayout());
+ JPanel jPanel1 = new JPanel();
+ JPanel jPanel2 = new JPanel();
+ text.setPreferredSize(new Dimension(570, 100));//文本框大小
+ jPanel2.setLayout(new FlowLayout());
+ jPanel1.add(text);
+ this.add(jPanel1, BorderLayout.NORTH);
+ text.setHorizontalAlignment(SwingConstants.RIGHT);//将JTextFiled内容设置为右对齐
+ jPanel2.setLayout(new GridLayout(7, 4));
+ JButton button[] = new JButton[28];
+ text.setFont(new Font("宋体", Font.BOLD, 50));//设置显示的字体
+ text.setBorder(BorderFactory.createLineBorder(Color.black, 1));//给文本框加黑边框
+ jPanel1.setBorder(BorderFactory.createRaisedBevelBorder());//设置边框
+ jPanel1.setBackground(Color.white);//设置组件颜色
+ jPanel2.setBackground(Color.white);//
+ jPanel2.setBorder(BorderFactory.createRaisedBevelBorder());//设置边框
+
+
+
+
+ //给按钮命名
+ String buttonName[] = { //代码修改为这种更简洁且更便于修改的形式
+ "%", "C", "⇚", "✓",
+ "(", ")", "x^2", "1/x",
+ "cos", "sin", "tan", "/",
+ "7", "8", "9", "*",
+ "4", "5", "6", "-",
+ "1", "2", "3", "+",
+ "π", "0", ".", "="
+ };
+
+
+ for (int i = 0; i < button.length; i++) {
+ button[i] = new JButton(buttonName[i]);
+ button[i].setFont(new Font("粗体", Font.BOLD, 20)); //修改字体
+ button[i].addActionListener(this);
+ button[i].setBorder(BorderFactory.createRaisedBevelBorder());
+ button[i].setBackground(Color.white);
+ //button[i].setContentAreaFilled(false);
+ //button[i].setBackground(Color.darkGray);
+ }
+ button[27].setBorder(BorderFactory.createLoweredBevelBorder());
+ button[27].setBackground(Color.ORANGE);
+ button[27].setContentAreaFilled(true);
+ for (int i = 0; i < button.length; i++) {
+ jPanel2.add(button[i]);
+ }
+ this.add(jPanel2, BorderLayout.CENTER);
+
+
+ setVisible(true);//不知道为什么这个只有放在后面才能正常显示组件
+
+
+ }
+
+ //注册监视器
+
+ public void actionPerformed(ActionEvent e) {
+ String clickButton = e.getActionCommand();
+ if (Objects.equals(clickButton, "="))
+ {
+ text.setText(this.str);
+
+ if (clickButton.equals("="))//调用计算方法，得出最终结果
+ {
+ String[] s = houzhui(this.str);//中缀表达式转换为后缀表达式
+ String result = Calculate(s);
+ this.str = result + "";
+ text.setText(this.str);
+ }
+ } else if (Objects.equals(clickButton, "C"))//清空按钮，消除显示屏文本框前面所有的输入和结果
+ {
+ this.str = "";
+ text.setText("0");
+ } else if (Objects.equals(clickButton, "⇚"))//退格，将文本最后一个字符去掉
+ {
+ String t = text.getText();
+ int i = t.length();
+ if (i > 0) {
+ t = t.substring(0, i - 1);
+ this.str = t;
+ if (i == 0) {
+ text.setText("0");
+ } else {
+ text.setText(t);
+ }
+ }
+
+ } else if (Objects.equals(clickButton, "✓")) {
+ String n = Rooting(this.str);
+ text.setText(n);
+ this.str = n;
+ } else if (Objects.equals(clickButton, "1/x")) {
+ String q = reciprocal(this.str);
+ text.setText(q);
+ this.str=q;
+ } else if (Objects.equals(clickButton, "x^2")) {
+ String m = square(this.str);
+ text.setText(m);
+ this.str = m;
+ } else if(Objects.equals(clickButton,"cos")){
+ String cos = cosCalculate(this.str);
+ text.setText(cos);
+
+ } else if(Objects.equals(clickButton,"sin")){
+ String sin = sinCalculate(this.str);
+ text.setText(sin);
+ } else if(Objects.equals(clickButton,"tan")){
+ String tan = tanCalculate(this.str);
+ text.setText(tan);
+ } else if(Objects.equals(clickButton,"π")){
+
+ String m=String.valueOf(Math.PI);
+ this.str=this.str+m;
+ text.setText(this.str);
+
+
+ } else {
+ this.str = this.str + clickButton;
+ text.setText(this.str);
+ }
+
+
+ }
+
+ // 计算方法
+ public String Calculate(String[] str) {
+ String[] Result = new String[1000];
+ int Top = -1;
+ for (int i = 0; str[i] != null; i++) {
+ if ("+-*%/".indexOf(str[i]) < 0) {
+ Top++;
+ Result[Top] = str[i];
+ }
+ if ("+-*%/".indexOf(str[i]) >= 0)
+ {
+ double x, y, n;
+ x = Double.parseDouble(Result[Top]);
+ Top--;
+ y = Double.parseDouble(Result[Top]);
+ Top--;
+ if ("*".indexOf(str[i]) >= 0) {
+ n = y * x;
+ Top++;
+ Result[Top] = String.valueOf(n);
+
+ }
+ if ("/".indexOf(str[i]) >= 0)
+ {
+ if (x == 0)//
+ {
+ String s = "被除数不能为0";
+ return s;
+ } else {
+ n = y / x;
+ Top++;
+ Result[Top] = String.valueOf(n);//
+ }
+ }
+ if ("%".indexOf(str[i]) >= 0)
+ {
+ if (x == 0)// 被除数不允许为0
+ {
+ String s = " 被除数不允许为0";
+ return s;
+ } else {
+ n = y % x;
+ Top++;
+ Result[Top] = String.valueOf(n);
+ }
+ }
+ if ("-".indexOf(str[i]) >= 0) {
+ n = y - x;
+ Top++;
+ Result[Top] = String.valueOf(n);
+ }
+ if ("+".indexOf(str[i]) >= 0) {
+ n = y + x;
+ Top++;
+ Result[Top] = String.valueOf(n);
+ }
+ }
+ }
+ return Result[Top];// 返回最终结果
+ }
+
+ //开方运算方法
+ public String Rooting(String str) {
+ String result = "";
+ double a = Double.parseDouble(str), b = 0;
+ b = Math.sqrt(a);
+ result = String.valueOf(b);//将运算结果转换为string类型并赋给string类型的变量result
+ return result;
+ }
+
+ //平方运算方法
+ public String square(String str) {
+ String result = "";
+ double a = Double.parseDouble(str), b = 0;
+ b = Math.pow(a, 2);
+ result = String.valueOf(b);
+ return result;
+ }
+ //计算倒数
+ public String reciprocal(String str){
+ String result = "";
+ double a = Double.parseDouble(str), b = 0;
+ if(a==0){
+ result="0没有倒数";
+ str="";
+ return result;
+ }else {
+ b = 1 / a;
+ result = String.valueOf(b);
+ return result;
+ }
+
+ }
+
+ //计算cos值
+ public String cosCalculate(String str){
+ String result="";
+ double a = Double.parseDouble(str),b=0;
+ b = Math.cos(a);
+ result = String.valueOf(b);
+ return result;
+ }
+ //计算sin值
+ public String sinCalculate(String str) {
+ String result = "";
+ double a = Double.parseDouble(str), b = 0;
+ b = Math.sin(a);
+ result = String.valueOf(b);
+ return result;
+ }
+ //计算tan值
+ public String tanCalculate(String str){
+ String result="";
+ double a = Double.parseDouble(str),b=0;
+ b = Math.tan(a);
+ result = String.valueOf(b);
+ return result;
+ }
+
+
+ /*将中缀表达式转换为后缀表达式
+ 以下的算法思想引用借鉴了博客：
+ https://blog.csdn.net/weixin_50301255/article/details/121889662的中缀表达式转为后缀表达式计算的算法*/
+ private String[] houzhui(String str) {
+
+ try {
+ String s = "";// 用于承接多位数的字符串
+ char[] opStack = new char[100];
+ String[] postQueue = new String[100];// 后缀表达式字符串数组，为了将多位数存储为独立的字符串
+ int top = -1, j = 0;
+ for (int i = 0; i < str.length(); i++)// 遍历中缀表达式
+ {
+ if ("0123456789.".indexOf(str.charAt(i)) >= 0) // 遇到数字字符的情况直接入队
+ {
+ s = "";// 作为承接字符，每次开始时都要清空
+ for (; i < str.length() && "0123456789.".indexOf(str.charAt(i)) >= 0; i++) {
+ s = s + str.charAt(i);
+ }
+ i--;
+ postQueue[j] = s;// 数字字符直接加入后缀表达式
+ j++;
+ } else if ("(".indexOf(str.charAt(i)) >= 0) {
+ top++;
+ opStack[top] = str.charAt(i);
+ } else if (")".indexOf(str.charAt(i)) >= 0) {// 遇到右括号
+ for (; ; )// 栈顶元素循环出栈，直到遇到左括号为止
+ {
+ if (opStack[top] != '(') {// 栈顶元素不是左括号
+ postQueue[j] = opStack[top] + "";// 栈顶元素出栈
+ j++;
+ top--;
+ } else { // 找到栈顶元素是左括号
+ top--;
+ break;
+ }
+ }
+ } else if ("*%/+-".indexOf(str.charAt(i)) >= 0) {
+ if (top == -1) {
+ top++;
+ opStack[top] = str.charAt(i);
+ } else if ("*%/".indexOf(opStack[top]) >= 0) {
+ postQueue[j] = opStack[top] + "";
+ j++;
+ opStack[top] = str.charAt(i);
+ } else {
+ top++;
+ opStack[top] = str.charAt(i);
+ }
+ }
+ }
+ while (top != -1) {
+ postQueue[j] = opStack[top] + "";
+ j++;
+ top--;
+ }
+ return postQueue;
+ } catch (Exception e) {
+ String[] error ={"error！"};
+ return error;
+ }
+ }
+
+}
diff --git a/src/java2022spring/Main.java b/src/java2022spring/Main.java
new file mode 100644
index 0000000000000000000000000000000000000000..fc7a692121851e495cc22b979d8fb7bfb47330b0
--- /dev/null
+++ b/src/java2022spring/Main.java
@@ -0,0 +1,7 @@
+package java2022spring;
+
+public class Main {
+ public static void main(String[] args) {
+ Calculator calculator=new Calculator();//执行构造方法打开计算器
+ }
+}