Program:
// Interface
interface Test
{
public int square(int a);
}
// Implements
class arithmetic implements Test
{
int s = 0;
public int square(int b)
{
System.out.println("Inside arithmetic class – implemented method square");
System.out.println("Square of " + " is "+s);
return s;
}
void armeth()
{
System.out.println("Inside method of class Arithmetic");
}
}
// use the object
class ToTestInt
{
public static void main(String a[])
{
System.out.println("calling from ToTestInt class main method");
Test t = new arithmetic();
System.out.println("==============================");
System.out.println("created object of test interface – reference Arithmetic class ");
System.out.println("Hence Arithmetic class method square called");
System.out.println("This object cannot call armeth method of Arithmetic class");
System.out.println("=================================");
t.square(10);
System.out.println("=================================");
}
}
