尽管边界在大小范围内，JButton仍部分绘制在窗口之外

import javax.swing.*;
import java.awt.*;

public class ButtonExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Button Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);

        // 使用BorderLayout布局管理器
        frame.setLayout(new BorderLayout());

        JButton button = new JButton("Click Me");
        frame.add(button, BorderLayout.CENTER);

        frame.setVisible(true);
    }
}

import javax.swing.*;
import java.awt.*;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;

public class DynamicButtonExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Dynamic Button Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);

        JButton button = new JButton("Click Me");
        frame.add(button);

        frame.addComponentListener(new ComponentAdapter() {
            @Override
            public void componentResized(ComponentEvent e) {
                // 动态调整按钮大小
                button.setPreferredSize(new Dimension(frame.getWidth() - 20, frame.getHeight() / 2));
                frame.revalidate();
                frame.repaint();
            }
        });

        frame.setVisible(true);
    }
}

import javax.swing.*;
import java.awt.*;

public class AbsolutePositionExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("Absolute Position Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.setLayout(null); // 关闭布局管理器

        JButton button = new JButton("Click Me");
        button.setBounds(50, 50, 200, 50); // 设置按钮的位置和大小
        frame.add(button);

        frame.setVisible(true);
    }
}