35 lines
880 B
Java
35 lines
880 B
Java
package com.inmind.random02;
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import java.util.Random;
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/*
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random类获取随机数
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*/
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public class Demo05 {
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//random类的基本使用
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public static void method(String[] args) {
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//创建一个随机数生成器对象
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Random random = new Random();
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//调用random类的方法nextInt方法
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for (int i = 0; i < 1000; i++) {
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System.out.println(random.nextInt(10));//0~9,java是包头不包尾的
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}
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}
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public static void main(String[] args) {
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//获取10个 【55~66，包含55和66】之间的随机值
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//55~66 - 55 ---> 0~11 ----->random.nextInt(12)
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Random random = new Random();
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for (int i = 0; i < 100; i++) {
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// int val = random.nextInt(12)+55;
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int val = random.nextInt(55, 67);//17以上才有
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System.out.println(val);
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}
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}
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}
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