Java Utililty Methods Number Multiply

List of utility methods to do Number Multiply

  1. HOME
  2. Java
  3. N
  4. Number Multiply

Description

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

Method

Objectmultiply(V1 value1, V2 value2)
multiply 
Object ret = null;
if (null == value1 && null == value2) {
    ret = 0;
} else if (null == value1) {
    ret = value2;
} else if (null == value2) {
    ret = value1;
} else {
...
LongmultiplyForLong(final Number operand1, final int operand2)
Multiplies an object number by a primitive int and returns a Long. 
if (operand1 instanceof Double) {
    return Long.valueOf(Math.round(operand1.doubleValue() * operand2));
throw new IllegalArgumentException(operand1.getClass() + " not supported");
LongmultiplyLongs(Long a, Long b)
multiply Longs 
return new Long(a.longValue() * b.longValue());
NumbermultiplyNumbers(Number a, Number b)
multiply Numbers 
if (a instanceof Double || b instanceof Double) {
    return Double.valueOf(a.doubleValue() * b.doubleValue());
} else if (a instanceof Float || b instanceof Float) {
    return Float.valueOf(a.floatValue() * b.floatValue());
} else if (a instanceof Long || b instanceof Long) {
    return Long.valueOf(a.longValue() * b.longValue());
} else if (a instanceof Integer || b instanceof Integer) {
    return Integer.valueOf(a.intValue() * b.intValue());
...