Java Utililty Methods Number Multiply

List of utility methods to do Number Multiply

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Description

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

Method

Doublemultiply(Double a, Double b)
multiply 
if ((a == null) || (b == null)) {
    return null;
return a * b;
doubleMultiply(double px0, double py0, double px1, double py1, double px2, double py2)
Multiply 
return ((px1 - px0) * (py2 - py0) - (px2 - px0) * (py1 - py0));
longmultiply(final long a, final long b)
multiply 
final long product = a * b;
final long b2 = product / a;
if (b2 != b) {
    throw new ArithmeticException("long overflows: " + a + " * " + b + " = " + product);
return product;
longmultiply(final long x, final long y)
multiply 
if (x < y) {
    return (long) (x * (y / CORRECTION_FACTOR));
return (long) (y * (x / CORRECTION_FACTOR));
intmultiply(int a, int b)
multiply 
int ar = getRed(a);
int ag = getGreen(a);
int ab = getBlue(a);
ar *= getRed(b);
ag *= getGreen(b);
ab *= getBlue(b);
return getRGB(clamp(ar), clamp(ag), clamp(ab));
intmultiply(int x, int y)
multiply 
return x * y;
Numbermultiply(Number a, Number b)
Multiplies two numbers, returning the resulting Number. 
if (a instanceof Integer && b instanceof Integer) {
    return Integer.valueOf(a.intValue() * b.intValue());
return Double.valueOf(a.doubleValue() * b.doubleValue());
Tmultiply(Number a, Number b, Class cl)
multiply 
return convert(a.doubleValue() * b.doubleValue(), cl);
Numbermultiply(Number n1, Number n2)
Multiply two numbers 
Class<?> type = getComputationType(n1, n2);
Number val1 = convertTo(n1, type);
Number val2 = convertTo(n2, type);
if (type == Long.class)
    return Long.valueOf(val1.longValue() * val2.longValue());
return new Double(val1.doubleValue() * val2.doubleValue());
Numbermultiply(Number n1, Number n2)
multiply 
if (n1 instanceof Double || n2 instanceof Double) {
    return n1.doubleValue() * n2.doubleValue();
} else if (n1 instanceof Float || n2 instanceof Float) {
    return n1.floatValue() * n2.floatValue();
} else if (n1 instanceof Long || n2 instanceof Long) {
    return n1.longValue() * n2.longValue();
} else {
    return n1.intValue() * n2.intValue();
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