java循环语句 创建按钮

import java.awt.FlowLayout

import javax.swing.JButton

import javax.swing.JFrame

public class Button {

private JFrame frame = null

public Button(){

frame = new JFrame("按钮窗口")

frame.setLayout(new FlowLayout(FlowLayout.LEFT))

createButton(16)

frame.setSize(400,400)

frame.setLocation(400, 400)

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

frame.setVisible(true)

}

private void createButton(int count) {

for(int i=0i<counti++){

JButton button = new JButton("按钮"+i)

frame.add(button)

}

}

public static void main(String[] args) {

new Button()

}

}

你运行一下就可以看到按钮的名字了啊JButton("按钮"+i)

你可以定义一个数组，

JButton[] b = new JButton[4]

for(i=1i<=4i++){

b[i]=new JButton(i+"号按钮 ")

container.add(b)}

给你一个例子：

import java.awt.*

import javax.swing.*

import java.awt.event.*

class DrawRect{

int[][] e

JFrame jf

public DrawRect() {

jf = new JFrame("Button")

jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)

JButton[] bgroup=new JButton[225]

Container contentPane=jf.getContentPane()

contentPane.setLayout(new GridLayout(15,15))

String s

for(int i=0i<225i++){

bgroup[i]=new JButton()

contentPane.add(bgroup[i])

bgroup[i].addActionListener(new showData(i))//为bgroup注册监听器

}

jf.pack()

jf.setVisible(true)

}

//类showData是事件的监听器，监听到单击事件就会执行actionPerformed方法

class showData implements ActionListener{

int num

public showData(int i){ //将编号传入，以便输出

num = i

}

public void actionPerformed(ActionEvent e){ //方法名称不可改变

String message = "这个按钮的编号是： " + num

JOptionPane.showMessageDialog(jf,message)

//调用message对话框输出，jf为对话框基于哪个JFrame,message为要输出的字符串

}

}

}

public class a {

public static void main(String[] args) {

DrawRect d = new DrawRect()

}

}

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