From 4b5738a3ac0ff4af78b03105b7dae55b258ef6b1 Mon Sep 17 00:00:00 2001
From: xiaolai <1372917576@qq.com>
Date: Thu, 17 Oct 2024 16:52:51 +0800
Subject: [PATCH] 1

---
 SimpleCalculator.java | 48 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 SimpleCalculator.java

diff --git a/SimpleCalculator.java b/SimpleCalculator.java
new file mode 100644
index 0000000..79d227d
--- /dev/null
+++ b/SimpleCalculator.java
@@ -0,0 +1,48 @@
+import javax.swing.*;
+import java.awt.*;
+
+
+public class SimpleCalculator extends JFrame {
+
+    private JTextField display;
+    private JPanel panel;
+    private double operand1 = 0;
+    private double operand2 = 0;
+    private char operator;
+    private boolean userIsTypingSecondNumber = false;
+
+    public SimpleCalculator() {
+        setTitle("Simple Calculator");
+        setSize(400, 500);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setLocationRelativeTo(null);
+
+        // Display text field
+        display = new JTextField();
+        display.setEditable(false);
+        display.setHorizontalAlignment(SwingConstants.RIGHT);
+        add(display, BorderLayout.NORTH);
+
+        // Panel for buttons
+        panel = new JPanel();
+        panel.setLayout(new GridLayout(5, 4, 10, 10));
+
+        // Add numbers and operations to panel
+        String[] buttons = {
+                "7", "8", "9", "/",
+                "4", "5", "6", "*",
+                "1", "2", "3", "-",
+                "0", ".", "=", "+",
+                "C"
+        };
+
+        for (String text : buttons) {
+            JButton button = new JButton(text);
+            button.setFont(new Font("Verdana", Font.PLAIN, 24));
+            button.setFocusable(false);
+            panel.add(button);
+            button.addActionListener(new ButtonClickListener());
+        }
+
+        add(panel, BorderLayout.CENTER);
+    }
\ No newline at end of file