Object Oriented Programming

A (a)   is a variable inside an object that make sup part of its internal state.

A value that can be passed to a function or class when it is called.

(a)  

In OOP, creating an object from a class is a process known as...

(a)  

The ability for a class to inherit the methods and attributes of a parent class.  Its ‘child’ class can have its own methods and attributes and override methods of its parent class.

• Polymorphism

• Encapsulation

• Attribute

• Inheritance

What makes it possible to create a new child class that shares the attributes and methods of the original (parent) class?

• Instantiation

• Inheritance

What will the following code display when run?

String str1="Melvin";

String str2="Melvin";

if(str1!=str2)

System.out.print("I didn't expect that.");

else

System.out.print("This one is tricky.");

• I didn't expect that.

• This one is tricky.

Ensuring private attributes can only be amended through public methods.  This prevents objects being manipulated in unintended ways.

• Polymorphism

• Inheritance

• Encapsulation

• Object Oriented Programming

  (OOP)

An object's attributes are contained in the object and access to them is restricted to operations of that class

• Inheritance
• Encapsulation
• Polymorphism

Car, Fruit, Ball & Pet are all examples of potential classes?

• True

• False

What will be displayed when the following statements are run:

int limit=20;

int Sum=20;

if(sum>limit)

System.out.print("Limit surpassed");

else

System.out.print("Limit not ");

System.out.print("reached.");

• Limit surpassed

• Limit surpassed reached.

• Limit not

• Limit not reached.