[sireesha]

which is usefull(commonly used) way to represent numbers like
int x,y;
or
Integer x,y;
what is the difference between them ?
i wrote code like

Code:

class test4
{
public static void main(String args[])
 {
  Integer x,y;
  x=23;
  y=30;
  System.out.println(x+ys);
 }
}

i got following errors
1.incompatible types
2. operator + cannot be applied to java.lang.Integer,java.lang.Integer.

what is wrong with my code ?
please tell me..