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Java · All 2025 papers

99 questions · 500 marks · 5 papers

Answer key

Indian Institute of Technology Madras

BS Degree Programme · Examination & Study Paper

Programming Concepts using Java

All 2025 papers

Official Paper

Examination Instructions & Guidelines

Solve on notebook/paper first before checking solutions.
MCQ: Exactly 1 option is correct. Negative marking applies.
MSQ: One or more options correct. Select all to score.
Scientific calculator allowed for all calculations.
Official answer key is sealed at the end of this sheet.

Quiz 1 · 26 Oct 2025 (AN)Quiz 1

Q1MCQ7 Marks·Choose one option
Key ↓
1. Aalpha ()
2. Bbeta ()
3. Cgamma ()
4. Dmain ()
Q2MCQ7 Marks·Choose one option
Key ↓
1. A21
2. B28
3. C25
4. D16
Q3MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q4MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q5MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q6MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q7MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q8MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q9MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q10MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q11MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q12MCQ8 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q13MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q14MSQ6 Marks·Choose all correct options
Key ↓
Which of the following statements correctly describe static typing and dynamic typing?
1. AIn dynamic typing, the type of a variable is determined at runtime and may change with the value assigned.
2. BDynamic typing requires explicit declaration of variable names and their types before use.
3. CStatic typing allows the compiler to catch type errors early and perform type- based optimizations.
4. DIn static typing, variables can freely change their type at runtime by assigning values of different types.
Q15MSQ7 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D

End Term · 31 Aug 2025 (FN)End Term

Q16MCQ4 Marks·Choose one option
Key ↓
1. A3
2. B4
3. C5
4. D6
Q17MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q18MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q19MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q20MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q21MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q22MCQ4 Marks·Choose one option
Key ↓
1. A8 10
2. B9 11
3. C7 9
4. D7 11
Q23MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q24MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q25MCQ4 Marks·Choose one option
Key ↓
1. AIt prints 100 five times, 200 five times, and 300 five times in an interleaved manner.
2. BIt prints 100 five times, followed by 200 five times and 300 five times in an interleaved manner.
3. CIt prints 100 and 200 (five times each) in an interleaved manner, followed by 300 printed five times.
4. DIt prints 100 five times, followed by 200 five times, followed by 300 five times.
Q26MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
5. E
Q27MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q28MCQ4 Marks·Choose one option
Key ↓
What will the output be?
1. A
2. B
3. C
4. D
Q29MCQ4 Marks·Choose one option
Key ↓
Choose the correct option.
1. A
2. B
3. C
4. D
Q30MCQ4 Marks·Choose one option
Key ↓
Choose the correct option.
1. A
2. B
3. C
4. D
5. E
Q31MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q32MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q33MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q34MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q35MCQ5 Marks·Choose one option
Key ↓
Consider the Java code given below. What will the output be?
1. A
2. B
3. C
4. D
Q36MSQ5 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q37MSQ5 Marks·Choose all correct options
Key ↓
Consider the Java code below.
1. A
2. B
3. C
4. D
Q38MSQ5 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D

End Term · 31 Aug 2025 (AN)End Term

Q39MCQ4 Marks·Choose one option
Key ↓
1. A4
2. B5
3. C6
4. D8
Q40MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q41MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q42MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q43MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q44MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q45MCQ4 Marks·Choose one option
Key ↓
1. A18 24
2. B20 28
3. C24 30
4. D18 36
Q46MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q47MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q48MCQ4 Marks·Choose one option
Key ↓
1. AIt prints 10 four times, 20 four times, and 30 four times in an interleaved manner.
2. BIt prints 10 four times, followed by 20 and 30 (four times each) in an interleaved manner.
3. CIt prints 10 and 20 (four times each) in an interleaved manner, followed by 30 four times.
4. DIt prints 10 four times, followed by 20 four times, followed by 30 four times.
Q49MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q50MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q51MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
5. E
Q52MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q53MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q54MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q55MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q56MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q57MCQ6 Marks·Choose one option
Key ↓
1. AThe label will change to “Clicked” when the button is clicked
2. BThe label remains “Initial”
3. CThe code throws a runtime error
4. DThe button will disappear after clicking
Q58MSQ4 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q59MSQ4 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q60MSQ6 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q61MSQ6 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D

Quiz 2 · 3 Aug 2025 (AN)Quiz 2

Q62MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q63MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q64MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q65MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q66MCQ6 Marks·Choose one option
Key ↓
1. A2 4 6 8
2. B4 6 8 10
3. C4 10 16 22
4. D8 16 24 32
Q67MCQ6 Marks·Choose one option
Key ↓
1. A10 20 25 15 5 30 35
2. B10 20 25 15 5 30 35
3. C10 20 25 15 5 30
4. D10 20 25 15 5 30 35
Q68MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q69MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q70MCQ7 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q71MCQ7 Marks·Choose one option
Key ↓
1. A125.0
2. B75.0
3. C50.0
4. DCloning not supported
Q72MCQ8 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q73MSQ7 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q74MSQ7 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q75MSQ7 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q76MSQ8 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D

End Term · 13 Apr 2025 (FN)End Term

Q77MCQ4 Marks·Choose one option
Key ↓
1. AThe code always prints 2000.
2. BThe code prints any number in the range 1000 to 2000
3. CThe code prints any number in the range 0 to 1000
4. DThe code always prints 1000.
Q78MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q79MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q80MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q81MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q82MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q83MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q84MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q85MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q86MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q87MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q88MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q89MCQ4 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q90MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q91MCQ5 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q92MCQ6 Marks·Choose one option
Key ↓
1. A
2. B
3. C
4. D
Q93MSQ4 Marks·Choose all correct options
Key ↓
Which of the following statements is/are correct?
1. AThe heap stores dynamically allocated data.
2. BActivation records created for functions are allocated on the heap.
3. CThe heap storage needs to be explicitly requested by the programmer.
4. DStorage allocated on the heap cannot be deallocated in any way.
Q94MSQ4 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q95MSQ4 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q96MSQ4 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q97MSQ4 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D
Q98MSQ6 Marks·Choose all correct options
Key ↓
1. ALine 2
2. BLine 7
3. CLine 11
4. DLine 12
5. ELine 18
Q99MSQ6 Marks·Choose all correct options
Key ↓
1. A
2. B
3. C
4. D

Official Key

Master Answer Key & Explanations

Official answer keys from IIT Madras BS past papers. Click any question to review.

Reveal Key

Q1C

Q2C

Q3B

Q4D

Q5A

Q6B

Q7D

Q8C

Q9D

Q10B

Q11A

Q12A

Q13B

Q14A, C

Q15B, D

Q16C

Q17D

Q18C

Q19B

Q20C

Q21C

Q22B

Q23C

Q24C

Q25C

Q26B

Q27B

Q28C

Q29C

Q30A

Q31C

Q32D

Q33C

Q34C

Q35D

Q36A, D

Q37A, C

Q38A, B, D

Q39B

Q40D

Q41C

Q42B

Q43C

Q44B

Q45C

Q46C

Q47C

Q48B

Q49B

Q50C

Q51A

Q52C

Q53C

Q54D

Q55B

Q56B

Q57B

Q58A, C

Q59A, B

Q60C, D

Q61A, C

Q62C

Q63B

Q64D

Q65C

Q66C

Q67B

Q68D

Q69B

Q70B

Q71B

Q72D

Q73A, B

Q74C, D

Q75A, B, C

Q76A, B

Q77B

Q78A

Q79B

Q80C

Q81C

Q82C

Q83C

Q84D

Q85B

Q86B

Q87A

Q88B

Q89C

Q90A

Q91A

Q92C

Q93A, C

Q94A, C

Q95A, C

Q96C, D

Q97C, D

Q98C, D, E

Q99A, C

Questions and answer keys are reproduced from the official IIT Madras BS papers. BTechi is not affiliated with IIT Madras.