38 lines
1.3 KiB
Java
38 lines
1.3 KiB
Java
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/*
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Java Program to Implement Park-Miller Random Number Generation Algorithm
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This is java program to generate the random numbers, using the Park-Miller algorithm.Park–Miller random number generator (after Stephen K. Park and Keith W. Miller), is a variant of linear congruential generator (LCG) that operates in multiplicative group of integers modulo n. A general formula of a random number generator (RNG) of this type is, x(n+1) = g*x(n) mod n.
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*/
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//This is a sample program to random numbers using Park Miller Random Numbers algorithm
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public class Park_Miller_Random_Numbers
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{
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static final long m = 2147483647L;
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static final long a = 48271L;
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static final long q = 44488L;
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static final long r = 3399L;
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static long r_seed = 12345678L;
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public static double uniform ()
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{
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long hi = r_seed / q;
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long lo = r_seed - q * hi;
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long t = a * lo - r * hi;
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if (t > 0)
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r_seed = t;
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else
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r_seed = t + m;
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return r_seed;
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}
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public static void main (String[] argv)
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{
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double[] A = new double [10];
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for (int i=0; i<5; i++)
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A[i] = uniform();
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for (int i=0; i<5; i++)
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System.out.print (" " + A[i]);
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}
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}
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//1.085252519E9 5.08259731E8 1.352291773E9 1.563240271E9 8.90733155E8 ...
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