package thread;
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
import javax.swing.JFrame;
/*
* 操作线程的方法
* 线程的休眠
*/
public class SleepMethodTest extends JFrame{
//声明一个线程对象
private Thread t;
//定义颜色数组
private static Color[] color= {Color.BLACK,Color.BLUE,Color.CYAN,Color.GREEN,Color.ORANGE,Color.YELLOW,Color.RED,Color.PINK,Color.LIGHT_GRAY};
//创建随机对象
private static final Random ran=new Random();
//获取随机颜色值得方法
private static Color getC() {
return color[ran.nextInt(color.length)];
}
public SleepMethodTest() {
t=new Thread(new Runnable() {
int x=30;
int y=50;
@Override
public void run() {
while(true) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
//获取组件绘图上下文对象
Graphics graphics=getGraphics();
//设置绘图颜色
graphics.setColor(getC());
//绘制直线并递增垂直坐标
graphics.drawLine(x, y, 100, y++);
if(y>=80) {
y=50;
}
}
}
});
//启动线程
t.start();
}
public static void main(String[] args) {
init(new SleepMethodTest(),100,100);
}
//初始化程序界面的方法
public static void init(JFrame frame,int width,int height) {
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.setSize(width,height);
frame.setVisible(true);
}
}
import java.awt.Color;
import java.awt.Graphics;
import java.util.Random;
import javax.swing.JFrame;
/*
* 操作线程的方法
* 线程的休眠
*/
public class SleepMethodTest extends JFrame{
//声明一个线程对象
private Thread t;
//定义颜色数组
private static Color[] color= {Color.BLACK,Color.BLUE,Color.CYAN,Color.GREEN,Color.ORANGE,Color.YELLOW,Color.RED,Color.PINK,Color.LIGHT_GRAY};
//创建随机对象
private static final Random ran=new Random();
//获取随机颜色值得方法
private static Color getC() {
return color[ran.nextInt(color.length)];
}
public SleepMethodTest() {
t=new Thread(new Runnable() {
int x=30;
int y=50;
@Override
public void run() {
while(true) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
//获取组件绘图上下文对象
Graphics graphics=getGraphics();
//设置绘图颜色
graphics.setColor(getC());
//绘制直线并递增垂直坐标
graphics.drawLine(x, y, 100, y++);
if(y>=80) {
y=50;
}
}
}
});
//启动线程
t.start();
}
public static void main(String[] args) {
init(new SleepMethodTest(),100,100);
}
//初始化程序界面的方法
public static void init(JFrame frame,int width,int height) {
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.setSize(width,height);
frame.setVisible(true);
}
}