我的面向对象

洗牌算法

package hello;

import java.util.Random;
import java.util.Scanner;

class xipai {
	String k[] = { "红桃A", "红桃2", "红桃3", "红桃4", "红桃5", "红桃6", "红桃7", "红桃8", "红桃9", "红桃10", "红桃J", "红桃Q", "红桃K; n黑桃A",
			"黑桃2", "黑桃3", "黑桃4", "黑桃5", "黑桃6", "黑桃7", "黑桃8", "黑桃9", "黑桃10", "黑桃J", "黑桃Q", "黑桃K; n梅花A", "梅花2", "梅花3",
			"梅花4", "梅花5", "梅花6", "梅花7", "梅花8", "梅花9", "梅花10", "梅花J", "梅花Q", "梅花K; n方片A", "方片2", "方片3", "方片4", "方片5",
			"方片6", "方片7", "方片8", "方片9", "方片10", "方片J", "方片Q", "方片K", "大王", "小王" };

	void xipi() {
		for (int i = 0; i < 1000; i++) {
			Random r = new Random();
			int x = r.nextInt(51);
			int y = r.nextInt(51);
			String w;
			w = k[x];
			k[x] = k[y];
			k[y] = w;
		}
		for(int i=0;i 
``
 
package hello;

import java.util.regex.*;

class zhengze {
	String c = "int x,y11,z=1+2*xL+0x5L+姓名+a姓名;";
	String x = "王五 010-65151234 手机 13812345678 张三 手机号 13177118811，买了138671456件商品，李四 电话 0791-88120410 有1566789件商品";
	String d="2001.1.1 2112334.2334.21";
	void cfen() {

		String[] r = c.split(" |\+|\*|\-|\%|,|;|=");

		for (String item : r) {
			System.out.print(item + ' ');
		}

	}

	void cshi() {
		Pattern p = Pattern.compile("[a-zA-Z_](\w)*");
		Matcher k = p.matcher(c);
		if (k.find())
			System.out.println("yes");
		else {
			System.out.println("no");
		}
	}

	void shaoma() {

		Pattern p = Pattern.compile("(13[0-9]|14[579]|15[0-35-9]|17[0-35-8]|18[0-9]){1}\d{8}");
		Matcher k = p.matcher(x);
		while (k.find()) {
			System.out.println("手机号码: " + k.group());

		}
	}

	void dhaoma() {
		Pattern a = Pattern.compile("0\d{2,3}[-]?\d{7,8}|0\d{2,3}\s?\d{7,8}");
		Matcher z = a.matcher(x);
		while (z.find()) {
			System.out.println("电话号码: " + z.group());

		}
	}

void day()
{Pattern a = Pattern.compile("\d{1,4}\.\d{1,2}\.\d{1,2}");
Matcher z = a.matcher(d);
while (z.find()) {
	System.out.println("合法日子: " + z.group());
	}
}
}
public class hello {
	public static void main(String[] args) {
		zhengze z = new zhengze();
		z.cfen();
		z.cshi();
		z.shaoma();
		z.dhaoma();
		z.day();
	}
}