________ is when a subclass implements a method that is already provided by a superclass.

What is a token?

What is displayed when the following code is compiled and executed? String s1 = new String('Test'); String s2 = new String('Test'); if (s1==s2) System.out.println('Same'); if (s1.equals(s2)) System.out.println('Equals');

A method is considered to be overloaded when:

Suppose ArrayList x contains two strings [Beijing, Singapore]. Which method will cause the list to become [Beijing, Chicago, Singapore]?

Can we override a static method?

Which class acts as root class for Java Exception hierarchy?

You have an instance of type Map named instruments containing the following key-value pairs: guitar=1200, cello=3000, and drum=2000. If you add the new key-value pair cello=4500 to the Map using the put method, how many elements do you have in the Map when you call instruments.size()?

What will this code print, assuming it is inside the main method of a class?System.out.println("hello my friends".split(" ")[0]);

Which characteristic does not apply to instances of java.util.HashSet=

Which code snippet is valid?