Math Methods · Java Math in Java | Java

Math Methods

The Math Class

java.lang.Math has static methods for common calculations. You call them on the class itself: Math.max(a, b). No import is needed.

Method	Meaning	Example	Result
`Math.max(a, b)`	larger value	`Math.max(4, 9)`	9
`Math.min(a, b)`	smaller value	`Math.min(4, 9)`	4
`Math.abs(x)`	absolute value	`Math.abs(-7)`	7
`Math.pow(a, b)`	a to the power b (double)	`Math.pow(2, 10)`	1024.0
`Math.sqrt(x)`	square root	`Math.sqrt(144)`	12.0
`Math.cbrt(x)`	cube root	`Math.cbrt(27)`	3.0
`Math.PI`	constant pi		3.141592653589793

Example

public class Main {
    public static void main(String[] args) {
        System.out.println(Math.max(120, 95));
        System.out.println(Math.min(-3, 2));
        System.out.println(Math.abs(-250));
        System.out.println(Math.pow(2, 10));
        System.out.println(Math.sqrt(64));
        double radius = 7;
        double area = Math.PI * Math.pow(radius, 2);
        System.out.println("Circle area: " + area);
        // distance between points (1,2) and (4,6)
        System.out.println(Math.hypot(4 - 1, 6 - 2));
    }
}

Output

120
-3
250
1024.0
8.0
Circle area: 153.93804002589985
5.0