test - Femtosoft Technologies

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JAVA FULLSTACK

📝 Online Exam Instructions – Read Carefully Before Starting

1️⃣ Exam Details:

✅ Total Questions: (25 Questions)
✅ Exam Duration: (5 Minutes)
✅ Passing Criteria: (80%)

🎯 Free Internship Opportunity:
📌 Only passed candidates (above 80%) are eligible for a free internship.
📌 We will schedule the internship and inform you via email & WhatsApp.
📌 Internship includes real-time project experience & a completion certificate.
📌 If you have scored 50% or above, you are eligible to receive your certificate

✅ Exam Type: MCQs

2️⃣ System Requirements:

✔ Use a laptop/desktop with a stable internet connection.
✔ Recommended browsers: Chrome, Firefox, Edge (latest versions).
✔ Ensure your webcam & microphone are working (if required).

3️⃣ Before Starting the Exam:

🖊 Fill in the Exam Registration Form Correctly

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⚠️ Incorrect details may result in delays or disqualification.

4️⃣ Submission & Certification Process:

📌 Ensure all answers are submitted before the timer ends.
📌 Once submitted, you cannot change your responses.
📌 After passing, your certificate will be automatically generated with your registered name.

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📌 Passed candidates will receive a free internship in their selected domain.
📌 We will schedule the internship and inform you via email & WhatsApp.
📌 Internship includes real-time project experience & a completion certificate.

🎉 Congratulations on your success!

🎯 Stay focused and give your best! Good luck!

Please fill all the required fields carefully, information provided will be used in offer letter and Completion Certificate.

1 / 25

1. Choose the correct method to convert a String to an integer in Java.

A. parseInt(str)

B. Integer.parseInt(str)

C. str.toInt()

D. int(str)

2 / 25

2. What is the result of the following Java expression?

System.out.println(Hello" + 1 + 2);

A. Hello12

B. Hello3

C. 12Hello

D. Compilation Error

3 / 25

3. What will be the output of the following code?

public class Test {

public static void main(String[] args) {

int x = 5;

System.out.println(x + x++ + ++x);

}

A. 18

B. Compilation Error

C. 19

D. 20

4 / 25

4. What is the output of this code?

int count = 0;

for (int i = 0; i < 5; i++) {

if (i == 3) continue;

count++;

}

System.out.println(count);

A. 5

B. 0

C. 3

D. 4

5 / 25

5. What will be the output of the following code?

class Base {

void display() {

System.out.println("Base class");

}

class Derived extends Base {

void display() {

System.out.println("Derived class");

}

public class Main {

public static void main(String[] args) {

Base obj = new Derived();

obj.display();

}

A. Derived class

B. Base class

C. Runtime Error

D. Compilation Error

6 / 25

6. What is the output for the following code?

public class Test {

public static void main(String[] args) {

String s1 = new String("Hello");

String s2 = new String("Hello");

System.out.println(s1 == s2);

}

A. True

B. Runtime Error

C. Compilation Error

D. False

7 / 25

7. What is the result of this code?

public class Test {

public static void main(String[] args) {

String s = "Java";

s = s.concat(" Programming");

System.out.println(s);

}

A. Compilation Error

B. Java

C. Runtime Error

D. Java Programming

8 / 25

8. Which method is called when an object is created?

A. constructor

B. start()

C. init()

D. main()

9 / 25

9. What will the output of the following code?

public class Example {

public static void main(String[] args) {

int i = 0;

while (i < 5) {

System.out.print(i + " ");

i++;

}

A. 0 1 2 3 4 5

B. 5

C. 1 2 3 4 5

D. 0 1 2 3 4

10 / 25

10. Which of the following is a valid Java package declaration?

A. package:my.package;

B. package my.package;

C. package.my.package;

D. package my.package;

11 / 25

11. What is the output of the following code?

StringBuilder sb = new StringBuilder(Hello");

sb.append(" World");

System.out.println(sb.toString());

A. Hello World

B. Hello

C. World

D. Compilation Error

12 / 25

12. What is the purpose of the 'finally' block in exception handling?

A. To catch exceptions

B. To ignore exceptions

C. None of the above

D. To execute always after try block

13 / 25

13. What is the default value of an uninitialized boolean variable in Java?

A. 0

B. False

C. True

D. null

14 / 25

14. Which of the following keywords is not used in Java?

A. native

B. synchronized

C. goto

D. strictfp

15 / 25

15. Which of the following can be a super class in an interface?

A. Abstract class

B. Any class

C. Only Object class

D. None of the above

16 / 25

16. What does the 'final' keyword indicate when used with a variable?

A. The variable is static

B. None of the above

C. The variable can be changed

D. The variable is constant

17 / 25

17. Which operator is used to access the members of a class?

A. :

B. /

C. .

D. >

18 / 25

18. What does the 'volatile' keyword mean in Java?

A. A variable can be changed by multiple threads

B. A variable cannot be changed

C. None of the above

D. A class cannot be inherited

19 / 25

19. How do you declare an array in Java?

A. Both A and B

B. None of the above

C. int[] arr;

D. int arr[];

20 / 25

20. What will be the output of this Java code?

public class Test

{

public static void main(String[] args)

{

for (int i = 0; i <= 5; i++)

{

System.out.print(i + " ");

}

A. 0 1 2 3 4 5

B. 0 1 2 3 4 5 6

C. 1 2 3 4 5

D. 0 1 2 3 4

21 / 25

21. What happens if you try to modify a value in a String object?

A. The original object is changed.

B. Both B and C.

C. A new String object is created.

D. Nothing happens, it's immutable.

22 / 25

22. What will be the output of the following code?

public class Test {

public static void main(String[] args) {

for (int i = 0; i < 5; i++) {

if (i % 2 == 0) continue;

System.out.print(i + " ");

}

A. 0 1 2 3 4

B. 1 2 3 4

C. 1 3

D. 0 2 4

23 / 25

23. What will be the output of the following code?

public class Test {

public static void main(String[] args) {

int x = 10;

int y = 20;

System.out.println(x >= y ? "X is greater" : "Y is greater");

}

A. X is greater

B. Y is greater

C. Compilation Error

D. Runtime Error

24 / 25

24. What is the value of 'x' after executing the following code?

int x = 10;

x += 5 * 2;

A. 20

B. 25

C. 15

D. 10

25 / 25

25. What output will the following code produce?

public class Test {

static int x = 10;

public static void main(String[] args) {

System.out.println(x++);

System.out.println(++x);

}

A. 11, 12

B. Compilation Error

C. 10, 11

D. 10, 12

Your score is