Introductory to object-oriented programmin UE Past Papers Questions.

To create an object from a given class involves the use of which has the smae syntax as that of any other Java method but with three exceptions. State those exceptions/ dfifferences. 

Answer / Solution

UNSOLVED

Write a  simple Java class with one .  

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UNSOLVED

Study the following piece of Java code  and answer the questions thereafter.

public class Brexit{

     public Brexit(String name){

       System.out.println(“The “+name+ ”want to leave EU”);

    }

    public static void main(String[] args){

   Brexit uk = new Brexit(“UK”);

}

}

1. What is the purpose of the code in line 14 and 18 respectively?
2. What will be the output of this code?
3. State if exists error(s) in this code.

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UNSOLVED

Define the following object oriented concepts

1. Polymorphism
2. Inheritance
3. Encapsulation

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UNSOLVED

What is the main use of an abstract class?

State three features that distinguishes an abstract class from a normal class.

Answer / Solution

UNSOLVED