diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f68d109
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,29 @@
+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..fb243bb
--- /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 0000000..1095a15
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/double_team.iml b/double_team.iml
new file mode 100644
index 0000000..c90834f
--- /dev/null
+++ b/double_team.iml
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/Main.java b/src/Main.java
new file mode 100644
index 0000000..f2e280e
--- /dev/null
+++ b/src/Main.java
@@ -0,0 +1,23 @@
+/**
+ * ClassName:${NAME}
+ * Package:
+ * Description:
+ * Author Pjj
+ *
+ * @Create 2024/10/10 16:14
+ * @Version 1.0
+ *///TIP To Run code, press or
+// click the icon in the gutter.
+public class Main {
+ public static void main(String[] args) {
+ //TIP Press with your caret at the highlighted text
+ // to see how IntelliJ IDEA suggests fixing it.
+ System.out.printf("Hello and welcome!");
+
+ for (int i = 1; i <= 5; i++) {
+ //TIP Press to start debugging your code. We have set one breakpoint
+ // for you, but you can always add more by pressing .
+ System.out.println("i = " + i);
+ }
+ }
+}
\ No newline at end of file
diff --git a/src/compute/SimpleCalculator.java b/src/compute/SimpleCalculator.java
index b1e2456..d09d3cc 100644
--- a/src/compute/SimpleCalculator.java
+++ b/src/compute/SimpleCalculator.java
@@ -1,6 +1,9 @@
package compute;
import javax.swing.*;
import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
public class SimpleCalculator {
@@ -14,71 +17,71 @@ public class SimpleCalculator {
frame = new JFrame("简单计算器");
inputField = new JTextField();
inputField.setEditable(false);
+ inputField.setFont(new Font("Arial", Font.PLAIN, 24));
+ inputField.setHorizontalAlignment(JTextField.RIGHT);
// 创建按钮
- JButton btn1 = new JButton("1");
- JButton btn2 = new JButton("2");
- JButton btn3 = new JButton("3");
- JButton btn4 = new JButton("4");
- JButton btn5 = new JButton("5");
- JButton btn6 = new JButton("6");
- JButton btn7 = new JButton("7");
- JButton btn8 = new JButton("8");
- JButton btn9 = new JButton("9");
- JButton btn0 = new JButton("0");
- JButton btnAdd = new JButton("+");
- JButton btnSubtract = new JButton("-");
- JButton btnMultiply = new JButton("*");
- JButton btnDivide = new JButton("/");
- JButton btnEqual = new JButton("=");
- JButton btnClear = new JButton("C");
+ JButton[] buttons = new JButton[16];
+ String[] buttonLabels = {"7", "8", "9", "/",
+ "4", "5", "6", "*",
+ "1", "2", "3", "-",
+ "C", "0", "=", "+"};
+
+ for (int i = 0; i < buttonLabels.length; i++) {
+ buttons[i] = new JButton(buttonLabels[i]);
+ buttons[i].setFont(new Font("Arial", Font.PLAIN, 24));
+ buttons[i].setFocusable(false);
+ buttons[i].setBackground(Color.LIGHT_GRAY);
+ buttons[i].setBorder(BorderFactory.createLineBorder(Color.GRAY));
+ final String label = buttonLabels[i];
+ buttons[i].addActionListener(e -> handleButtonClick(label));
+ }
// 设置布局
JPanel panel = new JPanel();
- panel.setLayout(new GridLayout(4, 4));
- panel.add(btn7);
- panel.add(btn8);
- panel.add(btn9);
- panel.add(btnDivide);
- panel.add(btn4);
- panel.add(btn5);
- panel.add(btn6);
- panel.add(btnMultiply);
- panel.add(btn1);
- panel.add(btn2);
- panel.add(btn3);
- panel.add(btnSubtract);
- panel.add(btn0);
- panel.add(btnEqual);
- panel.add(btnClear);
- panel.add(btnAdd);
-
- // 添加事件监听器
- btn1.addActionListener(e -> appendToInputField("1"));
- btn2.addActionListener(e -> appendToInputField("2"));
- btn3.addActionListener(e -> appendToInputField("3"));
- btn4.addActionListener(e -> appendToInputField("4"));
- btn5.addActionListener(e -> appendToInputField("5"));
- btn6.addActionListener(e -> appendToInputField("6"));
- btn7.addActionListener(e -> appendToInputField("7"));
- btn8.addActionListener(e -> appendToInputField("8"));
- btn9.addActionListener(e -> appendToInputField("9"));
- btn0.addActionListener(e -> appendToInputField("0"));
-
- btnAdd.addActionListener(e -> setOperator("+"));
- btnSubtract.addActionListener(e -> setOperator("-"));
- btnMultiply.addActionListener(e -> setOperator("*"));
- btnDivide.addActionListener(e -> setOperator("/"));
-
- btnEqual.addActionListener(e -> calculateResult());
- btnClear.addActionListener(e -> clearInput());
+ panel.setLayout(new GridLayout(4, 4, 10, 10));
+ for (JButton button : buttons) {
+ panel.add(button);
+ }
// 设置窗体
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(400, 400);
+ frame.setLayout(new BorderLayout());
frame.add(inputField, BorderLayout.NORTH);
- frame.add(panel);
+ frame.add(panel, BorderLayout.CENTER);
frame.setVisible(true);
+ frame.setLocationRelativeTo(null); // 窗口居中
+ frame.addKeyListener(new KeyAdapter() { // 支持键盘输入
+ @Override
+ public void keyPressed(KeyEvent e) {
+ char keyChar = e.getKeyChar();
+ if (Character.isDigit(keyChar) || keyChar == '.' || "+-*/=".indexOf(keyChar) >= 0) {
+ handleButtonClick(String.valueOf(keyChar));
+ }
+ if (e.getKeyCode() == KeyEvent.VK_ESCAPE) {
+ clearInput();
+ }
+ }
+ });
+ }
+
+ private void handleButtonClick(String label) {
+ switch (label) {
+ case "C":
+ clearInput();
+ break;
+ case "=":
+ calculateResult();
+ break;
+ default:
+ if ("+-*/".contains(label)) {
+ setOperator(label);
+ } else {
+ appendToInputField(label);
+ }
+ break;
+ }
}
private void appendToInputField(String value) {
@@ -92,33 +95,39 @@ public class SimpleCalculator {
}
private void calculateResult() {
- num2 = Double.parseDouble(inputField.getText());
- double result = 0;
+ try {
+ num2 = Double.parseDouble(inputField.getText());
+ double result = 0;
- switch (operator) {
- case "+":
- result = num1 + num2;
- break;
- case "-":
- result = num1 - num2;
- break;
- case "*":
- result = num1 * num2;
- break;
- case "/":
- if (num2 != 0) {
- result = num1 / num2;
- } else {
- JOptionPane.showMessageDialog(frame, "错误：除数不能为零。");
- return;
- }
- break;
+ switch (operator) {
+ case "+":
+ result = num1 + num2;
+ break;
+ case "-":
+ result = num1 - num2;
+ break;
+ case "*":
+ result = num1 * num2;
+ break;
+ case "/":
+ if (num2 != 0) {
+ result = num1 / num2;
+ } else {
+ JOptionPane.showMessageDialog(frame, "错误：除数不能为零。");
+ return;
+ }
+ break;
+ }
+ inputField.setText(String.valueOf(result));
+ } catch (NumberFormatException e) {
+ JOptionPane.showMessageDialog(frame, "无效输入，请检查。");
}
- inputField.setText(String.valueOf(result));
}
private void clearInput() {
inputField.setText("");
+ num1 = num2 = 0;
+ operator = "";
}
public static void main(String[] args) {