exponential in java

1import java.lang.Math; 
2  
3class Gfg { 
4  
5    // driver code 
6    public static void main(String args[]) 
7    { 
8        double a = 30; 
9        double b = 2; 
10        System.out.println(Math.pow(a, b)); 
11  
12        a = 3; 
13        b = 4; 
14        System.out.println(Math.pow(a, b)); 
15  
16        a = 2; 
17        b = 6; 
18        System.out.println(Math.pow(a, b)); 
19    } 
20

1There is no exponential operator in Java, you will have to use Math.pow 

1(int) Math.pow(first, second));