Java OOP Connections

A Java block is formed by enclosing statements using open and close curly brackets. True or False?

• True

• False

Identifiers can start with a number. True or False?

• True

• False

This is the general structure for a method:

• <Returnvalue type> <Method Name> (argument / s)

• <Modifier> < type> <Method Name> (parameter / s)

• public static void main (String[ ] args)

• <Method Name> (parameter)

The difference between a static and non static method is:

• For a non static method the user needs to create object in a class to call that method.

• A non-static method performs only a specific task.

• There is no significant difference between a static and non - static method.

• Both are bounded with a class.

The data type for non returning method is:

• int

• double

• void

• public static

Identify the type of error that exists in this method program.

• Logic error

• runtime error

• syntax error

• Value error

What is wrapping of data into a single unit called class called?

• Abstraction

• Interface

• Encapsulation

• Instantiation

Rules for a set of methods to be used in a Java application, but have no implementation or bodies (i.e. are abstract) is called (an):

• Abstraction

• Interface

• Encapsulation

• Instantiation

Choose the Object oriented programming languages from the following:

• Turing

• Java

• Pascal

• Python

What is an instance of or a copy of a class?

• Class

• Object

• Attribute

• Interface