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SELECTIONS CLASS X 2015-2016 COMPUTER APPLICATIONS (Theory) (Two hours + 15 mins) Answers to this Paper must be written on the paper provided separately. You will not be allowed to write during the first 15 minutes.This time is to be spent in reading the question paper. The question paper is divided into two Sections. Attempt all questions from Section A and any four questions from Section B. The intended marks for questions or parts of questions are given in brackets [ ]. SECTION A (40 Marks) Attempt all questions Question 1. (a) Java is a platform. Expound. [2] (b) Name any two characteristic features of Java. [2] (c) What is protected access specifier. [2] (d) Explain what is ArrayOutOfBounds error. [2] (e) What are wrapper classes. [2] Question 2. (a) Name the Java keyword that: (i) is used for dynamic memory allocation to reference data types (ii) is used to declare class variables. [2] (b) Differentiate between : i) Call by reference and Call by Value. [2] ii) mutable and immutable functions. [2]
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