java-programming/javaUpdates/src/oops/ABDriver.java at master · 9146887137/java-programming · GitHub

24 lines (18 loc) · 595 Bytes

package oops;

import java.util.ArrayList;

import java.util.Collection;

import java.util.HashSet;

import java.util.List;

public class ABDriver {

public static void main(String[] args) {

InterfaceA a=new ClassB();

System.out.println(a instanceof ClassB);

System.out.println(a instanceof InterfaceA);

//ClassB b=new CheckFinalClass();

Collection<Integer> ar=new ArrayList<Integer>();

HashSet<Integer> h=(HashSet<Integer>) ar;

System.out.println(ar instanceof List<Integer>);

System.out.println(ar instanceof HashSet<Integer>);

//b.add();

}

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