Java Utililty Methods Random Long

List of utility methods to do Random Long

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Description

The list of methods to do Random Long are organized into topic(s).

Method

RandomgenerateRandomBySampleSeed(long sampleSeed, long fallbackValue)
Generate random instance according to sample seed. 
if (sampleSeed != fallbackValue) {
    return new Random(sampleSeed);
return new Random();
longgenerateRandomLongValue()
generate Random Long Value 
long randomID = generateRandomLongValue(MIN_SEED, Long.MAX_VALUE);
return randomID;
longgetLong()
Get next random long value. 
return random.nextLong();
longgetLong()
Gets a random long. 
return RANDOM.nextLong();
longgetLongBetween(long n, long m)
get Long Between 
if (m <= n) {
    return n;
long res = getLongMoreThanZero();
return n + res % (m - n);
longgetLongInRange(long minValue, long maxValue)
It returns a long/Long value between min and max value (included). 
return (long) (getDoubleInRange(minValue - 0.5, maxValue + 0.5 - (1 / Long.MAX_VALUE)) + 0.5);
longgetLongSpecial()
get Long Special 
int i = rng.nextInt();
long j = rng.nextLong();
if ((i & 0x10) != 0)
    return j;
return lspecial[((int) j & 0x7fffffff) % special.length] * ((i & 0x20) == 0 ? 1 : -1) + ((i & 0x03) - 1);
long[]getLongSpecialCases()
Testing helper method. 
long longs[] = new long[100];
int i = 0;
longs[i++] = Long.MAX_VALUE;
longs[i++] = Long.MAX_VALUE - 1L;
longs[i++] = (long) Integer.MAX_VALUE + 1L;
longs[i++] = Integer.MAX_VALUE;
longs[i++] = Integer.MAX_VALUE - 1;
longs[i++] = 100L;
...
longgetRandomLong()
Generates next random long 
Random rand = new Random(System.currentTimeMillis());
return rand.nextLong();
doublenextLong()
next Long 
return random.nextDouble();