java 如何将下列按钮用按钮数组和for循环表现出来,并且添加按纽监听器!

String[] strs ={"Backspace","CE","C","MC","1","2","3","4","5","6","7","8","9"}

Button[] b=new Button[strs.length]

for(int i=0i<strs.lengthi++){

b[i]=new Button(strs[i])

b[i].addActionListener(this)

}

按钮数组其实这里都不需要 写法如下

String[] strs={"Backspace","CE","C","MC","1","2","3","4","5","6","7","8","9"}

for(int i=0i<strs.lengthi++){

(new Button(strs[i])).addActionListener(this)

}

字符串内容来源niubore~ 特此感谢感谢感谢之。

首先建立一个监听事件 ActionListenerlisten=new My ActionListenerlisten ()

然后循环将JButton加入监听事件：

for(int i=0i<btns,lengthi++)

btns[i].add(listen)

那么在listen中如何区分是哪个按钮呢

方法一：在listen中得到btn对象，然后通过btn对象.getText()辨别

方法二：给每个jbutton设置 btns[i].setActionCommand("识别码")

在方法中public void actionPerformed(ActionEvent e)

可以通过e.getActionCommand() 得到每个按钮的识别码，从而区分每个按钮

不知道这样回答还算满意不

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