Question

java中的按钮JButton可否自己调整大小,用什么方法？

Answer 1

当然可以！
直接上代码：
package com.laozhao.test;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

/**
* @author dozhao
* @version create time：Feb 14, 2012 3:45:06 PM
*
*/
public class TestButton {

/**
* @param args
*/
public static void main(String[] args) {
JFrame frame = new JFrame("test button");
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(null);
final JButton button = new JButton("click me bigger");
button.addActionListener(new ActionListener(){

@Override
public void actionPerformed(ActionEvent e) {
int width = button.getSize().width;
int height = button.getSize().height;
button.setSize(width + 4, height + 4);

}

});
button.setSize(50, 30);
buttonPanel.setSize(400,500);
buttonPanel.add(button);
frame.getContentPane().add(buttonPanel);

frame.pack();
frame.setSize(400,500);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

}