NPTEL Programming In Java Assignment 3 Answers 2022 (Week 3)

NPTEL Programming In Java Assignment 3 Answers 2022 :- Here All The Questions and Answers Provided to Help All The Students and NPTEL Candidate as a Reference Purpose, It is Mandetory to Submit Your Weekly Assignment By Your Own Understand Level.

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NPTEL Programming In Java

From My Side : With the expansion of knowledge and Communication Technology, there’s a desire to develop massive and complicated package. Further, those package ought to be platform freelance, web enabled, straightforward to switch, secure, and robust. to satisfy this demand object-oriented paradigm has been developed and supported this paradigm the Java artificial language emerges because the best programming atmosphere. Now, Java artificial language is being employed for mobile programming, web programming, and plenty of alternative applications compatible to distributed systems. This course aims to hide the essential topics of Java programming in order that the participants will improve their skills to address the present demand of IT industries and solve several issues in their own filed of studies.

With the growth of Information and Communication Technology, there is a need to develop large and complex software. Further, those software should be platform independent, Internet enabled, easy to modify, secure, and robust. To meet this requirement object-oriented paradigm has been developed and based on this paradigm the Java programming language emerges as the best programming environment. Now, Java programming language is being used for mobile programming, Internet programming, and many other applications compatible to distributed systems. This course aims to cover the essential topics of Java programming so that the participants can improve their skills to cope with the current demand of IT industries and solve many problems in their own filed of studies.

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NPTEL Programming In Java Assignment 3 Answers 2022

Q1.This program is related to the generation of Fibonacci numbers.

For example: zero,1, 1,2, 3,5, 8, 13,… may be a sequence wherever thirteen is that the eighth Fibonacci number.

A partial code is given and you have got to finish the code as per the instruction given below.

Code:-

if (n==1)
return 0;
else if(n==2)
return 1;
return fib(n – 1) + fib(n – 2);

Q2. Define a class Point with two fields x and y each of type double. Also, define a method distance(Point p1, Point p2) to calculate the distance between points p1 and p2 and return the value in double.

Complete the code segment given below. Use Math.sqrt( ) to calculate the square root.

Code:-

class Point{
double x;
double y;

public static void distance(Point p1,Point p2){
double d;
d=Math.sqrt((p2.x-p1.x)*(p2.x-p1.x) + (p2.y-p1.y)*(p2.y-p1.y));
System.out.println(d);
}
}

Q3. A class Shape is defined with two overloading constructors in it. Another class Test1 is partially defined which inherits the class Shape. The class Test1 should include two overloading constructors as appropriate for some object instantiation shown in main() method. You should define the constructors using the super class constructors. Also, override the method calculate( ) in Test1 to calculate the volume of a Shape.

Code:-

double height;
Test1(double length,double h) {

super(length);
height=h;
}

Test1(double length,double breadth,double h) {

super(length,breadth);
height=h;
}

double calculate() {
return length*breadth*height;
}

Q4. This program to exercise the call of static and non-static methods. A partial code is given defining two methods, namely sum( ) and multiply ( ). You have to call these methods to find the sum and product of two numbers. Complete the code segment as instructed.  

Code:-

QuestionScope st = new QuestionScope();
int result1=st.sum(n1,n2);
int result2=QuestionScope.multiply(n1,n2);

System.out.println(result1);
System.out.println(result2);

Q5. Complete the code segment to swap two numbers using call by object reference.

Code:-

static void swap(Question obj) {

int temp;

temp=obj.e1;

obj.e1=obj.e2;

obj.e2=temp;

}

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