ProgressBar实例
package com.mgr;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.RoundRectangle2D;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.Timer;
import javax.swing.border.LineBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import com.sun.awt.AWTUtilities;

public class ProgressBar implements ActionListener,ChangeListener {
JFrame frame=null;
JProgressBar progressbar;
JLabel label;
Timer timer;
JButton b;
public ProgressBar(){
JFrame.setDefaultLookAndFeelDecorated(true);
frame=new JFrame("安装");
frame.setBounds(100, 100, 400, 130);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container contentPanel=frame.getContentPane();
label=new JLabel("",JLabel.CENTER);
progressbar = new JProgressBar();
progressbar.setOrientation(JProgressBar.HORIZONTAL);
progressbar.setMinimum(0);
progressbar.setMaximum(100);
progressbar.setValue(0);
progressbar.setStringPainted(true);
progressbar.addChangeListener(this);
progressbar.setSize(new Dimension(300,10));
progressbar.setBorderPainted(true);
//progressbar.setBackground(Color.pink);
progressbar.setBorder(new LineBorder(Color.green,1,true));
JPanel panel=new JPanel();
b=new JButton("安装");
b.setForeground(Color.blue);
b.addActionListener(this);
panel.add(b);
timer=new Timer(100,this);
contentPanel.add(panel,BorderLayout.NORTH);
contentPanel.add(progressbar,BorderLayout.CENTER);
contentPanel.add(label,BorderLayout.SOUTH);
//frame.pack();

AWTUtilities.setWindowShape(frame, new RoundRectangle2D.Double(
0.0D, 0.0D, frame.getWidth(), frame.getHeight(), 26.0D,
26.0D));
frame.setVisible(true);
}

public void actionPerformed(ActionEvent e) {
if(e.getSource()==b){
timer.start();
}
if(e.getSource()==timer){
int value=progressbar.getValue();
if(value<100)
progressbar.setValue(++value);
else{
timer.stop();
frame.dispose();
}
}

}

public void stateChanged(ChangeEvent e1) {
int value=progressbar.getValue();
if(e1.getSource()==progressbar){
label.setText("目前已完成进度："+Integer.toString(value)+"%");
label.setForeground(Color.blue);
}

}
public static void main(String[] args) {
ProgressBar app=new ProgressBar();
}

}


package com.test;

public class FindMaxArray {

public static void main(String args[])
{
int[] origArr = new int[]{-1, 1, 4, -5, 5};
int temp[]= findMaxArr(origArr);
if(temp == null)
{
System.out.println("Please input digit.");
return;
}

System.out.println("Max array:");
for(int i=0; i< temp.length; i++)
{
System.out.print("\t" + temp[i]);
}
}

private static int[] findMaxArr(int[] origArr) {
if(origArr == null || origArr.length == 0)
{
return null;
}
int total = origArr[0];
int firstIndex = 0;
int lastIndex = 0;
for(int i = 1; i < origArr.length; i++)
{
if(origArr[i] > 0 && total > 0)
{
lastIndex = i;
total = total + origArr[i];
}
else if(origArr[i] > 0 && total < 0)
{
firstIndex = i;
lastIndex = i;
total = origArr[i];
}
else if(origArr[i] < 0)
{
if(checkArryIndex(origArr, i) && origArr[i] + origArr[++i] > total)
{
firstIndex = i;
lastIndex = i;
}else if(checkArryIndex(origArr, i) && origArr[++i] > total)
{
firstIndex = i;
lastIndex = i;
}
}
}
if(lastIndex == firstIndex)
{
return new int[]{origArr[lastIndex]};
}
else
{
int[] maxArr = new int[lastIndex - firstIndex + 1];
for(int i=firstIndex, j = 0 ; i<=lastIndex;i ++ ,j++ )
{
maxArr[j] = origArr[i];
}
return maxArr;
}
}

private static boolean checkArryIndex(int[] origArr, int i) {
return origArr.length > i+1;
}

}

新密码必须至少包含以下3个数字（0-9），大写和小写字母（AZ，az）和符号。
The new password must contain at least 3 of the following: numbers (0-9), upper and lower case letters (A-Z, a-z) and symbols.

请输入一个强密码。强密码包含7-16 个字符、 不包含常用词语或名称，以及将这些字符类型的三个结合起来： 大写的字母、 小写字母、 数字或符号
Please enter a strong password. Strong passwords contain 7-16 characters, do not include common words or names, and combine three of these character types: uppercase letters, lowercase letters, numbers, or symbols.

名字包含三个数字
The name consists of three numbers