Math. Abs Method

 
Public static intABS(Int)
 

Return IntThe absolute value of the value. If the parameter is not negative, this parameter is returned. If the parameter is a negative number, the opposite number of this parameter is returned.

Note: If the parameter is equalInteger. min_value(That is, the minimum negative value that can be expressed)IntValue), the result is the same as the value and is negative.

 
Public static longABS(Long)
 

Return LongThe absolute value of the value. If the parameter is not negative, this parameter is returned. If the parameter is a negative number, the opposite number of this parameter is returned.

Note: If the parameter is equalLong. min_value(That is, the minimum negative value that can be expressed)LongValue), the result is the same as the value and is negative.

 
Public static floatABS(Float)
 

Return FloatThe absolute value of the value. If the parameter is not negative, this parameter is returned. If the parameter is a negative number, the opposite number of this parameter is returned. In special cases:

• If the parameter is positive zero or negative zero, the result is positive zero.
• If the parameter is infinite, the result is positive infinity.
• If the parameter is Nan, the result is Nan.

In other words, the result is equal to the value of the following expression:

Float. intbitstofloat (0x7fffffff & float. floattointbits ())

 
Public static doubleABS(Double)
 

Return DoubleThe absolute value of the value. If the parameter is not negative, this parameter is returned. If the parameter is a negative number, the opposite number of this parameter is returned. In special cases:

• If the parameter is positive zero or negative zero, the result is positive zero.
• If the parameter is infinite, the result is positive infinity.
• If the parameter is Nan, the result is Nan.

In other words, the result is equal to the value of the following expression:

Double. longbitstodouble (double. doubletolongbits (a) <1) >>> 1)