zimu.java

练习打字

import javax.swing.* ; 
import java.awt.* ; 
import java.awt.event.* ; 


public class ZiMu extends JFrame { 
ZiMu(){ 
this.setSize(300 , 600) ; 
this.setResizable(false) ; 
this.setTitle("打字游戏") ; 
this.setBackground(Color.BLACK) ; 

MyPanel mp = new MyPanel() ; 
this.add(mp) ; 
this.addKeyListener(mp) ; 

Thread t = new Thread (mp) ; 
t.start() ; 
} 
public static void main(String args[]){ 
ZiMu w = new ZiMu () ; 
w.setVisible(true) ; 

} 
} 
class MyPanel extends JPanel implements Runnable, KeyListener { 
int x[] = new int[10] ; 
int y[] = new int[10] ; 
int sum = 0 ; 
String z[] = new String[10] ; 

MyPanel(){ 
for(int i=0;i<10;i++){ 
x[i] = (int)(Math.random()*300) ; 
y[i] = (int)(Math.random()*300) ; 
z[i] = new String(""+(char)(Math.random()*25+65)) ; 
} 
} 
public void paint(Graphics g) { 
super.paint(g) ; 

this.setBackground(Color.black) ; 
g.setColor(Color.WHITE) ; 
g.drawString("一分钟正确打对的字母： "+sum , 10 , 560) ; 
for(int i=0;i<10;i++){ 
g.drawString(z[i] , x[i] , y[i]) ; 
} 
} 
public void run(){ 
long g = System.currentTimeMillis() ; 

while(System.currentTimeMillis()-g<=60000) { 


for(int i=0;i<10;i++){ 
y[i] ++ ; 
if(y[i]>= 600){ 
sum -= 1 ; 
y[i] = (int)(Math.random()*50) ; 
x[i] = (int)(Math.random()*280) ; 
z[i] = new String(""+(char)(Math.random()*25+65)) ; 
} 
} 
try{ 
Thread.sleep(20) ; 
} 
catch(Exception e){ 
} 
this.repaint() ; 
} 

} 

public void keyTyped(KeyEvent e) { 
// TODO: Add your code here 
} 


public void keyPressed(KeyEvent e) { 
String keychar = new String(""+e.getKeyChar()) ; 
int yy = 0 ; 
int j = -1 ; 

for(int i=0;i<10;i++){ 
if(keychar.equals(z[i])){ 

if(yy<y[i]){ 
yy = y[i] ; 
j = i ; 
} 
} 
} 
if(j!=-1){ 
z[j] = new String(""+(char)(Math.random()*25+65)) ; 
y[j] = 0 ; 

sum += 1 ; 

}else{ 
sum -= 1 ; 
} 
} 

public void keyReleased(KeyEvent e) { 
// TODO: Add your code here 
} 
}