Power of 2 with "for" loop and "if else" condition !!!!

public class PowerOf2 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

int x;
long y =1;
System.out.println("X    This is called power of 2\n");

for(x =1; x <=10; x++){

if(x==1){
y = 1;
}
else{
y = y * 2;
}
System.out.println( x +  "         "+y);
}
}

}

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Output:

X    This is called power of 2

1         1

2         2

3         4

4         8

5         16

6         32

7         64

8         128

9         256

10       512

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