在java中的关键pressed事件 [英] KeyPressed event in java

问题描述

我刚刚创建了一个java井字棋游戏，我想弄清楚如何运行的方法，一旦进入关键是有一定条件的例子是在以下pssed $ P $ ...

 如果（/ *条件得到满足* /）{
     //的KeyListener
}
 

解决方案

根据您要捕获ENTER键，你可以使用的ActionListener （上这样的组件，如文本组件或按钮）或附加键绑定你组件

 公共类MyPanel继承JPanel {    公共MyPanel（）{        IM的InputMap = getInputMap中（WHEN_FOCUSED）;
        ActionMap中上午= getActionMap（）;        im.put（KeyStroke.getKeyStroke（KeyEvent.VK_ENTER，0），的OnEnter）;        am.put（的OnEnter，新AbstractAction（）{
            @覆盖
            公共无效的actionPerformed（ActionEvent的五）{
                //输入pressed
            }
        }）;    }}
 

这将依赖于该组件被聚焦。

I have just created a java tic-tac-toe game i would like to figure out how to run a method once the enter key is pressed during a certain condition an example is below...

if(/*condition is met*/){
     //keyListener
}

解决方案

Depending on where you want to trap the "enter" key, you could use an ActionListener (on such components such as text components or buttons) or attach a key binding to you component

public class MyPanel extends JPanel {

    public MyPanel() {

        InputMap im = getInputMap(WHEN_FOCUSED);
        ActionMap am = getActionMap();

        im.put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), "onEnter");

        am.put("onEnter", new AbstractAction() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // Enter pressed
            }
        });

    }

}

This will rely on the component being focused.

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