This set of MCQ(multiple choice questions) focuses on the Programming in Java NPTEL Week 5 Quiz Solutions.
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Week 1: Overview of Object-Oriented Programming and Java
Programming Assignment
Week 2: Java Programming Elements
Programming Assignment
Week 3: Input-Output Handling in Java
Programming Assignment
Week 4: Encapsulation
Programming Assignment
Week 5: Inheritance
Programming Assignment
Week 6: Exception Handling
Programming Assignment
Week 7: Multithreaded Programming
Programming Assignment
Week 8: Java Applets and Servlets
Programming Assignment
Week 9: Java Swing and Abstract Windowing Toolkit
Week 10: Networking with Java
Week 11: Java Object Database Connectivity
Week 12: Interface and Packages for Software Development
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Programming in Java NPTEL Week 5 Quiz Solutions
Q1. If the program is executed, then what will be the output?
a) 20
b) 21
c) 19
d) 22
Answer: b) 21
Q2. Which of the following statement(s) is/are false?
1. A class can extend more than one class.
2. An interface can extend many interfaces.
3. An interface can implement many interfaces.
4. A class can extend one class and implement many interfaces.
a) 1
b) 2
c) 3
d) 4
Answer: a), c)
Q3. What is the output of the following code?
a) 1
b) 2
c) 0
d) Compiler error
Answer: c) 0
Q4. Which of the following statement(s) is/are false?
a) Interface can provide the implementation of an abstract class.
b) The variables defined inside an interface are static and final by default.
c) An interface is used to achieve full abstraction.
d) Inside an interface, a constructor can be called using the super keyword with hierarchy.
Answer: a), d)
Q5. What is the output of the following code?
a) java
b) java
course
c) nptel
course
d) Compiler error
Answer: d) Compiler error
Q6. Which of the following keywords is/are a part of exception handling?
a) finally
b) throws
c) throw
d) thrown
Answer: a), b), c)
Q7. Fill in the blank in the above program to print the output “Java”.
a) public void
b) void
c) private void
d) static void
Answer: a) public void
Q8. Exception class exist in which of the following package?
a) java.void
b) java.io
c) java.lang
d) java.awt
Answer: c) java.lang
Q9. Fill in the blank with appropriate syntax for creating an object “c” to run the above program successfully.
a) X c = new X(1);
b) X c = new X();
c) X.Question c = new X.Question(0);
d) X.Question c = new X.Question(1);
Answer: c), d)
Q10. If the program is executed, then how many times “Java” will print?
a) 0
b) 1
c) 2
d) 3
Answer: c) 2
Programming in Java NPTEL Week 5 Quiz Solutions (2022)
Q1. If the program is executed, then what will be the output from the execution?
a) 100
102
b) 20
22
c) 102
100
d) 22
20
Answer: a)
Q2. If the program is executed, then what will be the output from the execution?
a) 170
b) 130
c) 0
d) 260
Answer: a) 170
Q3. What is the output of the following code?
a) Output: This is Explanation’s Print method
This is Answer’s Print method
b) Error: ‘super.super’ is not allowed.
c) Error: Compilation unsuccessful, as there is only one super class of Answer.
d) Output: This is Answer’s Print method
This is Explanation’s Print method
Answer: b) Error: ‘super.super’ is not allowed.
Q4. Which of the following is/are interface(s)?
a) DriverManager
b) Connection
c) Statement
d) ResultSet
Answer: b), c), d)
Q5. Which of the following statement(s) is/are true?
a) You can write a new instance method in the subclass that has the same signature as the one in the superclass, thus overriding it.
b) You can write a new static method in the subclass that has the same signature as the one in the superclass, thud hiding it.
c) A subclass inherits all of the public and protected members of its parent, no matter what package the subclass is in.
d) You cannot declare new methods in the subclass that are not in the superclass.
Answer: a), b), c)
Q6. Which of the following statement(s) is/are true?
a) Static methods in interfaces are never inherited.
b) You will get a compile-time error if you attempt to change an instance method in the superclass to a static method in the subclass.
c) You can prevent a class from being sub classed by using the final keyword in the class’s declaration.
d) An abstract class can only be subclassed; it cannot be instantiated
Answer: a), b), c), d)
Q7. Which of the following statement(s) is/are correct?
a) There is no main() method so the program is not compile successfully.
b) The value of i will be printed as 22, as it is static and final by default
c) The value of i will printed as 2, as it is initialized in class B.
d) Compile time error.
Answer: d) Compile time error.
Q8. Which of the following statement(s) is/are true?
a) A class can extend more than one class.
b) An interface can extend many interfaces.
c) An interface can implement many interfaces.
d) A class can extend one class and implement many interfaces.
Answer: b), d)
Q9. All classes in Java are inherited from which class?
a) java.lang.class
b) java.class.inherited
c) java.class.object
d) jaja.lang.Object
Answer: d) jaja.lang.Object
Q10. If the program is executed, then what will be the output from the execution?
a) Output: 1020
b) Output: 30
c) Output: 2010
d) Error: C1 is abstract; cannot be instantiated.
Answer: d) Error: C1 is abstract; cannot be instantiated.
Previous Course – Programming in Java NPTEL Week 5 Quiz Solutions
Q1. Which of the following is not true about throw
a) Throw is used inside a function
b) Throw can be used to declare multiple exception
c) Throw is followed by an instance
d) Throw is a keyword
Answer: b) Throw can be used to declare multiple exception
Q2. Which of the following is not true about custom exception in java?
a. class Exception extends Exp {
public Exception () {super ();}
public Exception (String s) {super(s);}
}
b. class Exception extends Exp{
Exception(String s){
super(s);
}
}
c. public class Exception extends Exp {
public Exception(String s) {
super(s);
}
}
d. class Exception extends Exp {
public Exception () {super ();}
Answer: d)
Q3. Which of the following is not a property of tagged interface?
a) Serializable
b) Cloneable
c) Remote
d) Cascading
Answer: d) Cascading
Q4. Which of the following is not an exception in Java?
a) SQLException
b) ArrayIndexOutOfBoundException
c) OutOfMemoryError
d) StackOverflow
Answer: d) StackOverflow
Q5. Which of the following is type of Java Exception?
a) unchecked
b) checked
c) a & b
d) error
Answer: c) a & b
Q6. Which of the following keywords is not a part of exception handling?
a) try
b) throws
c) throw
d) thrown
Answer: d) thrown
Q7. Which of the option is correct regarding multiple catch blocks?
a) The subclass exception cannot be caught at first
b) The superclass exception cannot be caught at first
c) The subclass exception must be caught at last
d) The superclass exception must be caught at first
Answer: b) The superclass exception cannot be caught at first
Q8. When an array element is accessed beyond the array size, then which exception occurs
a) ArrayElementOutOfBound
b) ArrayIndexOutOfBound
c) ArraySizeOutOfBound
d) None of the above
Answer: d) None of the above
Q9. What is the output of this program?
class ExceptionHandling{
public static void main(String args[]) {
try{
int num1, num2;
num1 = 5;
num2 = num1/0;
System.out.print("A");
}
catch(ArithmeticException e) {
System.out.print("0");
}
finally {
System.out.print("B");
}
}
}a) 0
b) A
c) 0
d) 0B
Answer: d) 0B
Q10. When does an exception occur?
a) During the time of compilation of a Java program
b) During the time of execution of a Java program
c) Anytime, that is, during compilation and execution of a program
d) At the end of execution of a Java program, if there is an exception
Answer: b) During the time of execution of a Java program
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