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import java.util.regex.*;
public final class RegExpValidator
{
/**
* ÑéÖ¤ÓÊÏä
* @param ´ýÑéÖ¤µÄ×Ö·û´®
* @return Èç¹ûÊÇ·ûºÏµÄ×Ö·û´®,·µ»Ø <b>true </b>,·ñÔòΪ <b>false </b>
*/
public static boolean isEmail(String str)
{
String regex = "^([\\w-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([\\w-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$";
return match(regex, str);
}
/**
* ÑéÖ¤IPµØÖ·
* @param ´ýÑéÖ¤µÄ×Ö·û´®
* @return Èç¹ûÊÇ·ûºÏ¸ñʽµÄ×Ö·û´®,·µ»Ø <b>true </b>,·ñÔòΪ <b>false </b>
*/
public static boolean isIP(String str)
{
String num = "(25[0-5]|2[0-4]\\d|[0-1]\\d{2}|[1-9]?\\d)";
String regex = "^" + num + "\\." + num + "\\." + num + "\\." + num + "$";
return match(regex, str); &n
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public class NumSort {
public static void mian (String args[]) {
int a[] = new int[args.length];
for (int i=0;i<args.length;i++) {
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import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Random;
import javax.imageio.ImageIO;
import javax.servlet.ServletException;
import javax.servlet.ServletOutpu ......