Unit 1 - Classes and Objects

A function in C language is similar to what in Java language?

• Variable

• Member

• Method

• Class

All methods and variables in Java language are kept inside a?

• File

• Package

• Class

• Interface

What is the need to mention "static" before main method?

• To call main method without creating an object of class

• To call main method using object creation

• To avoid method overriding

• To avoid calling the main method

What is the use of Access modifier "public" in Java language?

• To hide the main method from misuse

• To call the main method outside of Class or Package by JVM

• To protect main method

• None of the mentioned

Name of a Class, Variable, Method or an Interface in Java language is called?

• Argument

• Value

• Identifier

• Object

Which of these class is superclass of every class in Java?

• Main

• Object

• String

• Singleton

Which represent the real world entity in Java?

• Class

• Object

• Data members

• Main method

Wrapping up of data members and methods into a single unit is called as

• Data encapsulation

• Data abstraction

• Polymorphism

• Inheritance

What is the purpose of this keyword in Java?

• To refer the actual arguments of a function

• To refer the data (instance) members

• To refer static members

• To refer the formal arguments of a function

What is not the correct syntax for creating an object in Java?

• Class obj = new Class();

• Class obj1 = obj2;

• obj = new Class();

• obj = Class();