java中Random的用法
import java.util.Random;
public class MathOperators {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
//随机数的产生
int[] arr = new int[10];
Random r = new Random();
for (int m = 0; m < arr.length; m++)
{
arr[m] = r.nextInt(100);
}
for (int n = 0; n < arr.length; n++)
{
System.out.println(arr[n]);
}
}
}
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/**
* @(#)MyTray.java
*
*
* @author Xie Xiaojin
* @version 1.00 2009/11/9
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class MyTray implements ActionListener {
private MenuItem item1;
private MenuItem item2;
private MenuItem item3;
private ......
JOSSO
JOSSO(Java Open Single Sign-On)是一个开源的J2EE-based的SSO(SSO：单一登录技术是一种认证和授权机制，它允许注册用户只需要在任一成员网站上登录一次，而后授权访问其他连接的分支网站，无需再进行验证登录)基础结构.它的目的是提供一种用来解决在统一平台上进行用户集中认证的方案.
更多JOSSO信� ......
2009-11-09 15:33:36
文件属性配置类
package cn.sist.file;
public class FileProperty {
private int sysProperty = 0;
private int hiddenProperty = 0;
private int readProperty = 0;
private int arriveProperty = 0;
private boolean changeAll = false;
public FileProperty setC ......
java 列出某文件夹下的所有文件
import java.io.*;
public class ListFiles {
private static String s = "";
private static BufferedReader in = new BufferedReader(
new InputStreamReader(System.in));
public static void main(String[] args) {
try {
s = in.readLine();
ge ......
java 四种遍历List的方法及比较
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
public class ListTest {
public static void main(String args[]){
List<Long> lists = new ArrayList<Long>();
for(Long i=0l;i<1000000l;i++){
......
