动手动脑1
public class Main {
public static void main(String[] args) {
MyRandom mr=new MyRandom();
System.out.print("请输入随机数个数：");
int n;
mr.setSeed(System.currentTimeMillis());
Scanner sc=new Scanner(System.in);
n=sc.nextInt();
for(int i=0;i<n;i++){
System.out.println(" "+mr.nextRandom());
}
}
}
public class MyRandom
{
private static final long multiplier=0x5DEECE66DL;
private static final long modulus = 1L << 48;
private static final long addend = 0xBL;
private long seed;
public void setSeed(long x){
seed=x;
}
public int nextRandom() {
this.seed = lcg(modulus, multiplier, addend, this.seed);
return (int) (seed >>> 16);
}
protected long lcg(long m, long a, long c, long seed) {
return (seed * a + c) % m;
}
}
动手动脑2
7 IS 49
7.5 IS 56.25
函数形参的数据类型不同，形成函数重载