Question

所以我试图编写一些允许我设置自定义键的代码，而我似乎无法解决静态引用的非静态问题。

代码：

    import javax.swing.JFrame;
    import java.awt.event.KeyListener;
    import java.awt.event.KeyEvent;
    import java.lang.reflect.Field;

    public class keyTester extends JFrame
    {
        public keyTester()
        {
            this.addKeyListener(new keyListener());
            this.setSize(400, 400);
            this.setVisible(true);
        }

        private class keyListener implements KeyListener
        {

            public void keyPressed(KeyEvent e)
            {
                int key = e.getKeyCode();
                if (key == Field.set(KeyEvent.getClass().getField("VK_LEFT"), int.class));
                System.out.println("Left");

                if (key == KeyEvent.VK_RIGHT)
                    System.out.println("Right");

                if (key == KeyEvent.VK_UP)
                    System.out.println("Up");

                if (key == KeyEvent.VK_DOWN)
                    System.out.println("Down");
            }

                public void keyReleased(KeyEvent e) {}

                public void keyTyped(KeyEvent e) {}
        }
    }

错误：

C:\Users\Matt\Dropbox\My Projects\Tron\keyTester.java:21: error: non-    static method getClass() cannot be referenced from a static context
            if (key == Field.set(KeyEvent.getClass().getField("VK_LEFT"), int.class));
                             ^
C:\Users\Matt\Dropbox\My Projects\Tron\keyTester.java:21: error: non-static method set(Object,Object) cannot be referenced from a static context
            if (key == Field.set(KeyEvent.getClass().getField("VK_LEFT"), int.class));
                    ^
C:\Users\Matt\Dropbox\My Projects\Tron\keyTester.java:21: error: 'void' type not allowed here
            if (key == Field.set(KeyEvent.getClass().getField("VK_LEFT"), int.class));
                ^
3 errors

Tool completed with exit code 1

是否有任何解决方案可以访问VK_LEFT变量而无需通过此方法或以任何方式解决此问题？

从字符串Content中删除keyEvent int

0 个答案: