看一下这个java小程序问题

来源：百度知道 编辑：UC知道 时间：2024/05/21 04:04:32
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class TestKeyCliked extends Applet
{
Color clr;
public void init()
{
addKyeListener(new KeyAdapter()
{
public void keyTyped( KeyEvent e)
{
if(e.getKeyChar()=='r'||e.getKyeChar()=='R')
clr=Color.red;
else if(e.getKyeChar()=='g'||e.getKeyChar()=='G')
clr=Color.green;
else
clr=null;
setBackground(clr);
}
}

);
requestFocus();
}

}

好几个 Key 打成 Kye 了

修改后,运行通过:

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class TestKeyCliked extends Applet
{
Color clr;
public void init()
{
addKeyListener(new KeyAdapter()
{
public void keyTyped( KeyEvent e)
{
if(e.getKeyChar()=='r'||e.getKeyChar()=='R')
clr=Color.red;
else if(e.getKeyChar()=='g'||e.getKeyChar()=='G')
clr=Color.green;
else
clr=null;
setBackground(clr);
}
}

);
requestFocus();
}

}

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class test extends Applet
{
Color clr;
public void init()
{
addKeyListener(new KeyAdapter()
{
public void keyTyped( KeyEvent e)
{
if(e.getKeyChar()=='r'||e.getKeyChar()=='R')