package com.love;public class Test02 {	public static double jc(int n){		double jc = 1;		for (int j = 1; j <= n; j++){			 jc = jc * j;					}		return jc;	}	/**	 * 100内的素数	 * @author 文波	 * 	 *	 */	public static boolean isPrime(int n){		for (int j =2;  j <= Math.sqrt(n); j++){						if (n % j == 0){				return  false;			}		}		return true;			}	public static void main(String[] args) {		System.out.println("素数有：");		for (int i = 1; i <= 100; i++){				if(isPrime(i) ){				System.out.printf("%d  ", i);			}		}	}

package com.love;import java.util.Scanner;public class Test04 {	public static int gongyue(int x, int y){		int temp;		if (x > y){			temp = x;			x = y;			y = temp;				}		for (int i = x; i > 1; i--){			if (x % i == 0 && y % i == 0){				return i;			}					}		return 1;	}	public static int gongbei(int x, int y){		return x * y / gongyue(x, y);	}	public static void main(String[] args) {		Scanner sc = new Scanner(System.in);		System.out.print("输入第一个数：");		int n = sc.nextInt();		System.out.print("输入第二个数：");		int m = sc.nextInt();		System.out.println(n + "和 "+ m +"的最大公约数是：" + gongyue(n, m));		System.out.println(n + "和 "+ m +"的最大公倍数是：" + gongbei(n, m));		sc.close();	}}

package com.love;import java.util.Scanner;/** * 七星彩选号 * @author文波 * */public class Test05 {    public static void main(String[] args) {        Scanner sc = new Scanner(System.in);        System.out.print("请输入组数：");        int n = sc.nextInt();        for (int i = 1; i <= n; i++){            int num;            for (int j = 1; j <= 7; j++){                num = (int)(Math.random()*11 -1);                if (j == 7){                    System.out.println();                }                System.out.print(num);            }        }        sc.close();    }}

package com.love;import java.util.Scanner;/** * 猜数字 * @author 文波 */public class Test06 {	public static void main(String[] args) {		Scanner sc = new Scanner(System.in);		int n, count = 0;		int m = (int)(Math.random() * 100);		do{			count++;			System.out.print("请输入数字：");			n = sc.nextInt();			if (n == m){				System.out.println("恭喜你，猜对了！");				System.out.println("你共猜了！" + count + "次");			}			else if (n > m){				System.out.println("亲，小一点！");			}			else{				System.out.println("亲，大一点！");			}		}while (n != m);				}}

package com.love;/** * Craps赌博游戏 * @author 文波 * */public class Test08 {	public static int roll(){		return (int) (Math.random() * 6 + 1);	}	public static void main(String[] args) {		int firstPoint, currentPoint;		firstPoint = currentPoint = roll() + roll();		System.out.println("玩家摇出了" + currentPoint + "点");		boolean goon = false;		switch (currentPoint){		case 7:		case 11:			System.out.println("玩家胜！！！");			break;		case 2:		case 3:		case 12:			System.out.println("庄家胜！！！");			break;		default :			goon = true;				}		while (goon){			currentPoint = roll() + roll();			System.out.println("玩家掷出了" + currentPoint + "点");			if (currentPoint == 7){				System.out.println("庄家胜");				goon = false;			}			else if (firstPoint == currentPoint){				System.out.println("玩家胜");				break;			}		}					}}