package com.pb.demo1;

public class MathTest {

    public static void main(String[] args) {

        System.out.println("求平方根：" + Math.sqrt(9.0));

        System.out.println("求两数的最大值：" + Math.max(10,30));

        System.out.println("求两数的最小值：" + Math.min(10,30));

        System.out.println("2的3次方：" + Math.pow(2,3));

        System.out.println("四舍五入：" + Math.round(33.6));
 　　　　System.out.println("生成0-1之间的随机数:"+Math.random());

    }

}

package com.pb.demo1;

import java.util.Random;

public class RandomTest {

    public static void main(String[] args) {

        Random random=new Random();

        for (int i = 1; i <=10; i++) {

            System.out.println(random.nextInt(i));

        }

    }

}