Java GUI：使用复选框和图像实现逻辑门

import java.awt.FlowLayout;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

public class AndGate extends JPanel implements ChangeListener {
    private JCheckBox in1;
    private JCheckBox in2;
    private JLabel result;

    public AndGate() {
        super();
        setLayout(new FlowLayout());

        in1 = new JCheckBox("Input 1");
        in1.addChangeListener(this);
        add(in1);

        in2 = new JCheckBox("Input 2");
        in2.addChangeListener(this);
        add(in2);

        result = new JLabel("red"); // 初始状态为 red
        add(result);
    }

    @Override
    public void stateChanged(ChangeEvent e) {
        if (in1.isSelected() && in2.isSelected()) {
            result.setText("green");
        } else {
            result.setText("red");
        }
    }
}

import javax.swing.JFrame;
import java.awt.BorderLayout;
import javax.swing.SwingUtilities;

public class MainFrame extends JFrame {

    public MainFrame() {
        setTitle("AND Gate Simulation");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout());

        AndGate andGate = new AndGate();
        add(andGate, BorderLayout.CENTER);

        pack(); // 自动调整窗口大小以适应组件
        setLocationRelativeTo(null); // 窗口居中显示
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(() -> {
            MainFrame frame = new MainFrame();
            frame.setVisible(true);
        });
    }
}