Nptel Programming in Java Week 11 Assignment Answers

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You’re at the perfect place! We’ve got you covered with accurate, updated, and trustworthy solutions for Week 1 of the NPTEL Java course. Whether you’re double-checking your work or need help understanding the concepts, these answers will guide you through the assignment with clarity and confidence.

Nptel Programming in Java Week 11 Assignment Answers

 

Programming In Java

ABOUT THE COURSE :
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.
INTENDED AUDIENCE :  The undergraduate students from the engineering disciplines namely CSE, IT, EE, ECE, etc. might be interested for this course.

PREREQUISITES :  This course requires that the students are familiar with programming language such as C/C++ and data structures, algorithms.

INDUSTRY SUPPORT :   All IT companies.

COURSE LAYOUT – Click To Know More

NPTEL Programming in Java Assignment Answers – Course Overview & Weekly Breakdown

Are you following the Nptel Programming in Java Assignment Answers series? Whether you’re starting Week 1 or looking ahead, understanding the course structure is key to mastering Java. This guide outlines the course content, target audience, prerequisites, and weekly topics to help you stay ahead in your learning journey.

🧠 About the Course

In today’s fast-paced digital world, developing complex, scalable, and secure software is a major demand. Java, a platform-independent and robust programming language built on the object-oriented paradigm, is now widely used in mobile development, web applications, and distributed systems. This NPTEL course is designed to equip learners with core Java programming skills, enabling them to tackle real-world software development problems and adapt to the ever-evolving IT landscape.

🎓 Who Should Enroll?

This course is ideal for undergraduate students from engineering streams such as:

  • Computer Science and Engineering (CSE)

  • Information Technology (IT)

  • Electrical Engineering (EE)

  • Electronics and Communication Engineering (ECE)

✅ Prerequisites

Learners should have a foundational understanding of programming in C or C++, along with basic knowledge of:

  • Data structures

  • Algorithms

🏢 Industry Relevance

This course is highly supported by IT industries, making it a valuable asset for those aspiring to build a career in software development.

📅 Course Layout – Weekly Topics

Stay on track with your assignments by understanding what each week covers. If you’re searching for Nptel Programming in Java Assignment Answers, refer to the topics below to focus your preparation:

  • Week 1: Introduction to Object-Oriented Programming and Java Basics

  • Week 2: Core Elements of Java Programming

  • Week 3: Java Input and Output Operations

  • Week 4: Mastering Encapsulation in Java

  • Week 5: Exploring Inheritance in Java

  • Week 6: Handling Exceptions Effectively

  • Week 7: Multithreading and Concurrent Programming

  • Week 8: Understanding Java Applets and Servlets

  • Week 9: GUI Development with Swing and AWT

  • Week 10: Java Networking Essentials

  • Week 11: Database Connectivity with JDBC

  • Week 12: Interfaces and Java Packages for Scalable Development

Unlocking the fundamentals of Java programming, the NPTEL Week 1 assignment is designed to introduce learners to the core concepts of this powerful object-oriented language. From understanding Java’s syntax and structure to writing simple programs, this week lays the foundation for a deeper journey into Java development. In this post, we provide clear and concise solutions to the Week 1 assignment, ensuring clarity for beginners while adhering to academic integrity and learning goals. Dive in to reinforce your concepts and validate your approach.
Get All Week Nptel Assignment Answers – Click Here

Nptel Programming in Java Week 11 Assignment Answers

1) What is the full form of JDBC?

a. Java Database Connectivity
b. Java Data Code
c. Java Data Communication
d. Java Development Connectivity

➡ View Answer
Correct Answer: a. Java Database Connectivity

2) Fill in the missing code to establish a connection to a MySQL database.

import java.sql.*; 

public class JDBCExample {
public static void main(String[] args) {
try {
// Load JDBC Driver
Class.forName(“com.mysql.cj.jdbc.Driver”);

// Establish Connection
Connection connection = // INSERT CODE HERE;

System.out.println("Connected to the database.");
connection.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}

What should replace // INSERT CODE HERE?

a. DriverManager.connect(“mysql:localhost:mydb”, “user”, “password”);
b. DriverManager.getConnection(“jdbc:mysql://localhost:3306/mydb”, “user”, “password”);
c. Connection.get(“jdbc:mysql://localhost:3306/mydb”, “user”, “password”);
d. Driver.connect(“jdbc:mysql://localhost:mydb”, “user”, “password”);

➡ View Answer
Correct Answer: b. DriverManager.getConnection(“jdbc:mysql://localhost:3306/mydb”, “user”, “password”)

3) Identify the error and select the corrected statement

import java.sql.*; 

public class ResultSetExample {
public static void main(String[] args) throws SQLException {
Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "user", "password");
Statement stmt = connection.createStatement();
ResultSet rs = stmt.execute("SELECT * FROM users"); // Error
while (rs.next()) {
System.out.println(rs.getString("username"));
}
connection.close();
}
}

Correct line to replace the error:

a. ResultSet rs = stmt.executeQuery(“SELECT * FROM users”);
b. ResultSet rs = stmt.runQuery(“SELECT * FROM users”);
c. ResultSet rs = stmt.execute(“users SELECT * FROM”);
d. ResultSet rs = stmt.fetch(“SELECT * FROM users”);

➡ View Answer
Correct Answer: a. ResultSet rs = stmt.executeQuery(“SELECT * FROM users”);

4) What will the Java program output if the table products contains a column name and three rows: Laptop, Phone, and Tablet?

import java.sql.*; 

public class DisplayProducts {
public static void main(String[] args) {
try {
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/store", "root", "pass");
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery("SELECT name FROM products");
while (rs.next()) {
System.out.println(rs.getString("name"));
}
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}

a. Compilation Error
b. Runtime Error
c. Laptop
Phone
Tablet
d. No Output

➡ View Answer
Correct Answer: c. Laptop Phone Tablet

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5) Complete the following code to insert a new user into a users table.

import java.sql.*; 

public class InsertUser {
public static void main(String[] args) {
try {
Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "root", "password");
String query = "INSERT INTO users (username, email) VALUES (?, ?)";
PreparedStatement pstmt = // INSERT CODE HERE;
pstmt.setString(1, "john doe");
pstmt.setString(2, "john@example.com");
pstmt.executeUpdate();
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}

What should replace // INSERT CODE HERE?

a. conn.createStatement(query);
b. conn.prepareStatement(query);
c. conn.execute(query);
d. conn.runStatement(query);

➡ View Answer
Correct Answer: b. conn.prepareStatement(query);

6) Which of the following SQL operations can be executed using the executeUpdate method in JDBC?

I. INSERT INTO users (id, name) VALUES (1, ‘Alice’);
II. UPDATE users SET name=’Bob’ WHERE id=1;
III. DELETE FROM users WHERE id=1;
IV. SELECT * FROM users;

a. I, II, and III
b. Only I and II
c. Only I
d. I, II, III and IV

➡ View Answer
Correct Answer: a. I, II, and III

7) What is the purpose of the DriverManager class in JDBC?

a. To manage database connections.
b. To execute SQL queries.
c. To fetch data from a database.
d. To represent a database record.

➡ View Answer
Correct Answer: a. To manage database connections.

8) How do you establish a connection to a database using JDBC?

a. By creating an instance of the Connection interface
b. By using the DriverManager.getConnection() method
c. By implementing the Connection interface
d. By extending the Connection class

➡ View Answer
Correct Answer: b. By using the DriverManager.getConnection() method

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9) Which method executes a simple query and returns a single Result Set object?

a. executeQuery()
b. executeUpdate()
c. execute()
d. run()

➡ View Answer
Correct Answer: a. executeQuery()

10) Which package in Java contains the classes and interfaces for JDBC?

a. java.sql
b. java.io
c. java.db
d. java.net

➡ View Answer
Correct Answer: a. java.sql

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