Squaring the subscript values of array

import javax.swing.*;
public class squareofsubscript
{
public static void main(String[] args) {
int n,sq,i;
n=Integer.parseInt(JOptionPane.showInputDialog("enter size "));
for( i=0; i<=n; i++)
{
sq=i*i;
System.out.print(" \nsqaure of subscript of a["+i+"] is" +sq);
}
}
}

output:

enter size 6

sqaure of subscript of a[0] is0 

sqaure of subscript of a[1] is1 

sqaure of subscript of a[2] is4 

sqaure of subscript of a[3] is9 

sqaure of subscript of a[4] is16 

sqaure of subscript of a[5] is25 

sqaure of subscript of a[6] is36