JavaGeneric/Example7.java at main · AvinandanBose/JavaGeneric

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import java.io.Serializable;

interface A1<T> {

public T get(T a);

}

interface B1<T> {

public T get(T b);

}

class C1<T> implements A1<T>, B1<T> {

public T get(T c) {

return c;

}

public class Example7<T extends A1<? super Number> & B1<? super Number>> {

public static void main(String[] args) {

A1<Number> a = new A1<Number>(){

@Override

public Number get(Number a) {

return a;

}

};

System.out.println(a.get(1));

B1<Object> b = new B1<Object>(){

@Override

public Object get(Object b) {

return b;

}

};

System.out.println(b.get(2));

B1<Serializable> b2 = new B1<Serializable>() {

@Override

public Serializable get(Serializable b) {

return b;

}

};

System.out.println(b2.get(3));

}