给个对线程过多的处理例子,在线等! 如题,在线等,到啦马上给分 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 import java.awt.*;import java.awt.event.*;import java.util.*;class CBox2 extends Canvas { private static final Color[] colors = { Color.black, Color.blue, Color.cyan, Color.darkGray, Color.gray, Color.green, Color.lightGray, Color.magenta, Color.orange, Color.pink, Color.red, Color.white, Color.yellow }; private Color cColor = newColor(); private static final Color newColor() { return colors[ (int)(Math.random() * colors.length) ]; } void nextColor() { cColor = newColor(); repaint(); } public void paint(Graphics g) { g.setColor(cColor); Dimension s = getSize(); g.fillRect(0, 0, s.width, s.height); }}class CBoxVector extends Vector implements Runnable { private Thread t; private int pause; public CBoxVector(int pause) { this.pause = pause; t = new Thread(this); } public void go() { t.start(); } public void run() { while(true) { int i = (int)(Math.random() * size()); ((CBox2)elementAt(i)).nextColor(); try { t.sleep(pause); } catch(InterruptedException e) {} } }}public class ColorBoxes2 extends Frame { private CBoxVector[] v; public ColorBoxes2(int pause, int grid) { setTitle("ColorBoxes2"); setLayout(new GridLayout(grid, grid)); v = new CBoxVector[grid]; for(int i = 0; i < grid; i++) v[i] = new CBoxVector(pause); for (int i = 0; i < grid * grid; i++) { v[i % grid].addElement(new CBox2()); add((CBox2)v[i % grid].lastElement()); } for(int i = 0; i < grid; i++) v[i].go(); addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { System.exit(0); } }); } public static void main(String[] args) { // Shorter default pause than ColorBoxes: int pause = 5; int grid = 8; if(args.length > 0) pause = Integer.parseInt(args[0]); if(args.length > 1) grid = Integer.parseInt(args[1]); Frame f = new ColorBoxes2(pause, grid); f.setSize(500, 400); f.setVisible(true); }} ///:~在java编程思想上整理的,呵呵! 关于JAVA读数据库造成OutOfMemory的问题 为什么会有两种结果啊 请大家给点提示!~ 接口的方法不写参数行吗? 如何对数据库的内容进行国际化 为什么getTableName()只能得到空格或者空? 请问如何知道一个类是属于哪个包的?谢谢 新手上路,请教!!!! 请问JB7是否能结合MotoJ2SDK 急!!关于调用 jar文件的问题 诚心`请教CheckStyle是如何实现的 如何在局域网环境下做弹出提示系统?
import java.awt.event.*;
import java.util.*;class CBox2 extends Canvas {
private static final Color[] colors = {
Color.black, Color.blue, Color.cyan,
Color.darkGray, Color.gray, Color.green,
Color.lightGray, Color.magenta,
Color.orange, Color.pink, Color.red,
Color.white, Color.yellow
};
private Color cColor = newColor();
private static final Color newColor() {
return colors[
(int)(Math.random() * colors.length)
];
}
void nextColor() {
cColor = newColor();
repaint();
}
public void paint(Graphics g) {
g.setColor(cColor);
Dimension s = getSize();
g.fillRect(0, 0, s.width, s.height);
}
}class CBoxVector
extends Vector implements Runnable {
private Thread t;
private int pause;
public CBoxVector(int pause) {
this.pause = pause;
t = new Thread(this);
}
public void go() { t.start(); }
public void run() {
while(true) {
int i = (int)(Math.random() * size());
((CBox2)elementAt(i)).nextColor();
try {
t.sleep(pause);
} catch(InterruptedException e) {}
}
}
}public class ColorBoxes2 extends Frame {
private CBoxVector[] v;
public ColorBoxes2(int pause, int grid) {
setTitle("ColorBoxes2");
setLayout(new GridLayout(grid, grid));
v = new CBoxVector[grid];
for(int i = 0; i < grid; i++)
v[i] = new CBoxVector(pause);
for (int i = 0; i < grid * grid; i++) {
v[i % grid].addElement(new CBox2());
add((CBox2)v[i % grid].lastElement());
}
for(int i = 0; i < grid; i++)
v[i].go();
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
public static void main(String[] args) {
// Shorter default pause than ColorBoxes:
int pause = 5;
int grid = 8;
if(args.length > 0)
pause = Integer.parseInt(args[0]);
if(args.length > 1)
grid = Integer.parseInt(args[1]);
Frame f = new ColorBoxes2(pause, grid);
f.setSize(500, 400);
f.setVisible(true);
}
} ///:~在java编程思想上整理的,呵呵!