Java Random Int random(int n)

Description

random

License

Open Source License

Declaration

public static final int random(int n) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    static long state = 1;

    public static final int random(int n) {
        if (n == 1) {
            return 0;
        }/*  w w  w.  j a v  a2 s.c  om*/
        long r = ((nextLong() >>> 32) * n) >> 32;
        return (int) r;
    }

    public static final long nextLong() {
        long a = state;
        state = xorShift64(a);
        return a;
    }

    public static final long xorShift64(long a) {
        a ^= (a << 21);
        a ^= (a >>> 35);
        a ^= (a << 4);
        return a;
    }
}

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4. random(int min, int max)
5. random(int n)
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9. random(int theRange)