In this article, you will get NPTEL Assignment Answers of Week 2 (2023) of the course Programming in Java
1. Following is a program given for this question.
public class Question{
public static void main(String[] args) {
int[] x = {222, 210, 012);
for (int i = 0; i < x.length; i++) {
System.out.print (x[i] + "");
}
}
}
What will be the output of the above program?
a. 22221010
b. 12222101
c. 22101010
d. 22221012
Answer: a. 22221010
2. When an array is passed to a method, what value does the method receive?
a. Reference of the array.
b. Copy of the array.
c. First element in the array.
d. Length of the array.
Answer: a. Reference of the array.
3. Following is a program given for this question.
public class Main{
public static void main(String args[]) {
byte x = 28;
x++;
x++;
System.out.print (x);
}
}What will be the output of the above program?
a. 28
b. -29
c. 30
d. -31
Answer: c. 30
4. How many bits are needed for float and double in Java, respectively?
a. 32 and 64
b. 32 and 32
c. 64 64
d. 64 and 32
Answer: a. 32 and 64
5. Which of the following is a valid automatic type conversion in Java?
a. short to byte
b. float to long
c. int to short
d. int to long
Answer: d. int to long
6. Consider the following program and identify the output.
public class Question{
static void main(String[] args) {
short x = 10;
x = x * 5;
System.out.print(x);
}
}a. 5 b. 10
c. 50
d. Compilation error
Answer: d. Compilation error
7. Which of the following is a valid declaration of an object of class say, Student?
a. Student obj = new Student;
b. Student obj = new Student();
c. obj = new Student();
d. new Student obj;
Answer: b. Student obj = new Student();
8. What is the output of the following program?
public class Question{
public static void main(String[] args) {
int[] A = {0,1,2);
for (int i = 0; i < A.length; i++) {
A[i] A[(A[i] + 3) % A.length];
}
for (int i = 0; i < A.length; i++) {
System.out.print (A[i]);
}
}
}a. 210
b. 120
c. 012
d. 201
Answer: c. 012
9. Consider the following piece of code.
public class Question{
public static void main(String[] args) {
String str = "anpotdelqjpava";
System.out.println(str.substring(1,3) +str.substring (4,5)+ str.substring(6,8));
}
}Which of the following option is the output of the above program?
a. java
b. npteljava
c. nptel java
d. nptel
Answer: d. nptel
10. What is the output of the following program?
public class Main{
public void static main(String args[]) {
char a = '3';
int b = 011;
System.out.println(a+b);
}
}a. 60
b. 3011
c. 33
d. Compilation error
Answer: d. Compilation error
Programming Assignment Answers
Week 2 : Programming Assignment 1
Complete the code segment to call the method print() of class School first and then call print() method of class Student.
Answer:
// Create an object of class Student
// Call 'print()' method of class Student
// Create an object of class School
// Call 'print()' method of class School
School school = new School();
Student student = new Student();
school.print();
student.print(); Week 2 : Programming Assignment 2
Complete the code segment to call the method print() of class given class Printer to print the following.
——————————–
Hi! I am class SCHOOL
Hi! I class STUDENT.
——————————–
Answer:
// Create an object of class Printer
// Call 'print()' methods for desired output
Printer p=new Printer();
String s="Hi! I class SCHOOL.";
String r="Hi! I am class STUDENT";
p.print(s);
p.print(r);Week 2 : Programming Assignment 3
Complete the code segment tocall print() method of class Question by creating a method named ‘student()’.
Answer:
// Define a method named 'student()' in class Question
// Call the method named 'print()' in class Question
void student()
{
print(this);
}Week 2 : Programming Assignment 4
Complete the code segment to call default constructor first and then any other constructor in the class.
Answer:
class Answer{
Answer(){
System.out.println("You got nothing.");
}
Answer(int marks, String type){
this();
System.out.print("You got "+marks+" for an "+ type);
}
}Week 2 : Programming Assignment 5
Complete the code segment to debug / complete the program which is intended to print ‘NPTEL JAVA’.
Answer:
System.out.print(nptel+space+java+space+nptel);