Created
October 24, 2018 15:21
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Xorshift and xorshift+ implementation in Java
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public class Xorshift { | |
private long x = 123456789; | |
private long y = 362436069; | |
private long z = 521288629; | |
private long w = 88675123; | |
public long random() { | |
long t = x ^ ((x << 11) & 0xFFFFFFFFL); // 32bit | |
x = y; | |
y = z; | |
z = w; | |
w ^= (w >>> 19) ^ t ^ (t >>> 8); | |
return w; | |
} | |
public static void main(String[] args) { | |
Xorshift rng = new Xorshift(); | |
for (int i = 0; i < 10; i++) { | |
System.out.println(rng.random()); | |
} | |
} | |
} |
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public class XorshiftPlus { | |
private long s0 = 1; | |
private long s1 = 2; | |
public long random() { | |
long x = s0; | |
long y = s1; | |
x ^= x << 23; | |
x ^= (x >>> 17) ^ y ^ (y >>> 26); | |
s0 = y; | |
s1 = x; | |
return s0 + s1; | |
} | |
public static void main(String[] args) { | |
XorshiftPlus rng = new XorshiftPlus(); | |
for (int i = 0; i < 10; i++) { | |
System.out.println(rng.random()); | |
} | |
} | |
} |
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