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Method Math.abs () - gives the absolute value of the argument, in simple words - we get the modulus of a number. The argument can be int, float, long, double, short, byte.

Variants of the method are given below:

double abs(double d)
float abs(float f)
int abs(int i)
long abs(long lng)

Detailed information about the parameters:

public class Test { 

   public static void main(String args[]){
      Integer a = -8;
      double d = -100;
      float f = -90;    

      System.out.println(Math.abs(a));
      System.out.println(Math.abs(d));     
      System.out.println(Math.abs(f));    
   }
}

8
100.0
90.0