Tag: programming languages

List l = new Arraylist(); if you use this line in your code what will we get?

Which statements are true?

public void addAnimal(List super Dog> animals) { animals.add(new Dog()); } it's NOT legal to add when we use Wildcard character >.(True/ False)

List l = new Arraylist(); if you use this line in your code what will we get?

1.Set s = new HashSet(); 2.s.add("JAVA"); 3.s.add(new Integer(5)); Line 3 will give ClassCast Exception because Two different types of object are getting added.

1.Set s = new TreeSet(); 2.s.add("JAVA"); 3.s.add(new Integer(5)); Line 3 will give ClassCast Exception because Two different types of object are getting added.

1.Set s = new TreeSet(); 2.s.add("JAVA"); 3.s.add(new Integer(5)); Line 3 will give ClassCast Exception because Two different types of object are getting added.

1.Set s = new TreeSet(); 2.s.add("JAVA"); 3.s.add(new Integer(5)); Line 3 will give ClassCast Exception because Two different types of object are getting added.