指望有多少次的JButton是pressed？ [英] Count how many times a JButton is pressed?

问题描述

在所执行的操作在Java GUI code，我怎么算一个按钮有多少次是pressed，并做一些按钮的每个preSS？

In the action performed code in a JAVA GUI, how would I count how many times a button is pressed, and do something different for each press of the button?

  private class Listener implements ActionListener
  {
     public void actionPerformed (ActionEvent e)
     {

       HOW WOULD I COUNT HOW MANY TIMES THIS BUTTON HAS BEEN PRESSED?

     }

谢谢！

推荐答案

创建一个类变量，然后递增该方法的变量。

Create a class variable and then increment the variable in the method.

private class Listener implements ActionListener   
{      
    private int clicked;

    public void actionPerformed (ActionEvent e)
    {
         clicked++
    }
}

您可以创建访问变量的方法。

You can then create a method to access the variable.

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