Math.abs() Math absolute
System.out.println(Math.abs(-20)); // 20
System.out.println(Math.abs(-20.56));// 20.56
System.out.println(Math.abs(20)); // 20
System.out.println(Math.abs(20.56)); // 20.56Input can be a double, float, integer or long number. The output data type will be same as input data type.
All Math functions
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