interface ProxyBase {
void taskOne();
void taskTwo();
void taskThree();
}
class Implementation implements ProxyBase {
public void taskOne() {
System.out.println("Implementation.f()");
}
public void taskTwo() {
System.out.println("Implementation.g()");
}
public void taskThree() {
System.out.println("Implementation.h()");
}
}
class Proxy implements ProxyBase {
private ProxyBase implementation;
public Proxy() {
implementation = new Implementation();
}
public void taskOne() {
implementation.taskOne();
}
public void taskTwo() {
implementation.taskTwo();
}
public void taskThree() {
implementation.taskThree();
}
}
public class ProxyDemo {
public static void main(String args[]) {
Proxy p = new Proxy();
p.taskOne();
p.taskTwo();
p.taskThree();
}
}