CBSE Class 11 Computer Science Question 8 of 21

String Manipulation — Question 16

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16
Question

Question 8b

Find the errors. Find the line numbers causing errors.

  1. S = "PURA VIDA"
  2. S1 = S[: 10] +S[10 :]
  3. S2 = S[10] + S[-10]
Answer

The error is in line 3. Length of string S is 9 so its forward indexes range for 0 to 8 and backwards indexes range from -1 to -9. S[10] and S[-10] are trying to access out of bound indexes.


Source: This question is from String Manipulation, Computer Science — Class 11, CBSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter String Manipulation: Question, Errors, Line, Numbers, Causing, Pura. These are fundamental topics in Computer Science that students are expected to master as part of the CBSE Class 11 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Science papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach This Question

Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.

Key Points to Remember

  • Write programs with proper indentation and comments.
  • Trace through your code with sample inputs to verify correctness.
  • Explain the logic behind each step of your solution.
  • Familiarise yourself with common library functions and methods.

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