Number Pattern 1 by for loop

Number Pattern

Code Box by for loop
-------------------------
/*program to print number pattern square box by for loop

  12345
  12345
  12345
  12345
  12345
  
*/

class npat1
{
public static void main(String a[])
{
int n,i,j;

n=Integer.parseInt(a[0]);

for(i=1;i<=n;i++)
{
        for(j=1;j<=n;j++)
        {
        System.out.print(j);
        }

System.out.print("\n");

}
}
}