Java programming Question 1/ What is the output for the following program codes? 

a) [ 0.5 Mark ] 

 class A { 

 int i; 

 } 

 class B extends A { 

 int j; 

 void display() { 

 super.i = j + 1; 

 System.out.println(j + " " + i); }} 

 class inheritance { 

 public static void main(String args[]) { 

 B obj = new B(); 

 obj.i=1; 

 obj.j=2; 

 obj.display(); }} 

b) [ 0.5 Mark ] 

 class Parent { 

 public void getBike(){ 

 System.out.println("Suzuki Bike"); 

 }} 

 class Child extends Parent { 

 public void getCar(){ 

 System.out.println("Swift car"); }} 

 class inheritance { 

 public static void main(String args[]) { 

 Parent p = new Parent(); 

 p.getBike(); 

 Child c = new Child(); 

 c.getBike(); 

 c.getCar(); }} 

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Question 2/ a) Provide the UML diagram for the following program. [ 0.5 Mark ] 

class Parent { 

 public void getBike(){ 

 System.out.println("Suzuki Bike"); 

 } 

 } 

 class Child extends Parent { 

 public void getCar(){ 

 System.out.println("Swift car"); 

 } 

 } 

 class inheritance { 

 public static void main(String args[]) 

 { 

 Parent p = new Parent(); 

 p.getBike(); 

 Child c = new Child(); 

 c.getBike(); 

 c.getCar(); 

 } 

}

b) Explain the relationship between the sub class constructor and the super class constructor. Explain different possibilities with the help of an example.

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Question 3/

a) Explain the concept of interface in Java with example. [ 0.5 Mark ]

Answer:

b) Mention any five rules for interfaces in Java. Also provide an example for each rule [ 0.5 Mark ]

Answer :

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Question 4/

Implement a program for bank application containing two classes (e.g.CurrentAccount and SavingAccount etc ) and an interface(e.g. BankAccount with atleast 3 method signatures.) should be implemented by the above mentioned classes.