Hi,
Can someone please tell me which concept/concepts of OOP's does the following program contain.
public class TestInterface {
/** Creates a new instance of testInterface */
public TestInterface() {
}
public static void main(
String[] args) {
FirstClass x = new FirstClass();
SecondClass y = new SecondClass();
Interface1 a = (Interface1) x;
Interface2 b = (Interface2) y;
System.out.println(a.getValue());
System.out.println(b.getValue());
a = (Interface1) y;
b = (Interface2) x;
System.out.println(a.getValue());
System.out.println(b.getValue());
}
}
interface Interface1{
public String getValue();
}
interface Interface2{
public String getValue();
}
class FirstClass implements Interface1, Interface2{
public String getValue(){
return "FirstClass";
}
}
class SecondClass implements Interface1, Interface2{
public String getValue(){
return "SecondClass";
}
}
