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QA single dimensional array has 50 elements, which of the following is the correct statement to initialize the last element to 100.

ID: #24264 ICSE Computer Application - Class X - 2025 SPECIMEN QUESTION PAPER 53 views

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ICSE Computer Application - Class X - 2025 SPECIMEN QUESTION PAPERTopic

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A x[51] = 100 ✔ ✖
B x[48] = 100 ✔ ✖
C x[49] = 100 ✔ ✖
D x[50] = 100 ✔ ✖

Correct Answer: Option C

Explanation

Given:

A single-dimensional array has 50 elements.
In Java, array indexing starts from 0.

Step 1: Determine last index

First element → x[0]
Second element → x[1]
…
Last (50th) element → x[49] ✅

Remember: last index = total elements − 1

Step 2: Match with options

(a) x[51] = 100 → ❌ Out of bounds
(b) x[48] = 100 → ❌ 49th element, not last
(c) x[49] = 100 → ✅ Correct, last element
(d) x[50] = 100 → ❌ Out of bounds