package first;
/*
* 纯随机数发生器
* 生成1000个随机整数
*/
public class TestRandom {
public static void main(String[] args) {
// TODO Auto-generated method stub
long seed = System.currentTimeMillis();// 种子
int i;
int count = 0;
// Modulus=231-1=int.MaxValue
// Multiplier=75=16807
long random = (16807 * seed) % Integer.MAX_VALUE;
for (i = 1; i <= 1000; i++) {
random = (16807 * random) % Integer.MAX_VALUE;
System.out.print(random + " ");
count++;
if (count % 5 == 0)
System.out.println();
}
}
}
动手动脑二
package first; public class MethodOverload { public static void main(String[] args) { System.out.println("The square of integer 7 is " + square(7)); System.out.println("\nThe square of double 7.5 is " + square(7.5)); } public static int square(int x) { return x * x; } public static double square(double y) { return y * y; } }
原文：https://www.cnblogs.com/baixiaoli/p/9787405.html