e0604.java

来自「java小程序」· Java 代码 · 共 26 行

import java.io.*;
public class E0604
{
public static int ReturnNum()
{
int value=0;
double num=Math.random();
if(num>=0&&num<0.2)
 value=2;
if(num>=0.2&&num<0.4)
 value=7;
if(num>=0.4&&num<0.6)
 value=9;
if(num>=0.6&&num<0.8)
 value=16;
if(num>=0.8&&num<1)
 value=23;
return value;
}
public static void main(String args[])
{
int number=ReturnNum();
System.out.println("产生的随机数为");
System.out.println(String.valueOf((int)number));
}
}