Java Utililty Methods Number Sign

List of utility methods to do Number Sign

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Description

The list of methods to do Number Sign are organized into topic(s).

Method

intsignum(float val)
signum 
return (int) Math.signum(val);
intsignum(int a)
signum 
if (a == 0)
    return 0;
return a < 0 ? -1 : 1;
intsignum(int v)
Returns the sign of a number: either -1, 0 or 1. 
return v < 0 ? -1 : v > 0 ? 1 : 0;
intsignum(long diff)
Collapse number down to +1 0 or -1 depending on sign. 
if (diff > 0)
    return 1;
if (diff < 0)
    return -1;
else
    return 0;
intsignum(long l)
signum 
if (l > 0) {
    return 1;
} else if (l < 0) {
    return -1;
} else {
    return 0;
intsignum(long number)
signum 
if (number < 0)
    return -1;
else if (number == 0)
    return 0;
else
    return 1;
doublesignumEps(double val, double eps)
Signum functions with epsilon for floating point imprecision 
if (val < eps && val > -eps)
    return 0;
else
    return Math.signum(val);