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ICSE Class X Prelims 2021 : Computer Applications (Father Leblond School, Darjeeling)

4 pages, 37 questions, 3 questions with responses, 3 total responses,    2    0
Koustav Chakraborty
Baba Siddhnath College Of Education, Muthra
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COMPUTER APPLICATIONS (Theory) (Two hours) Answer 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 time given at the head of this paper is the time allowed to write the answers. This Paper is divided into 2 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 the brackets [ ] SECTION A (40 Marks) Attempt all questions Question 1 a) b) c) d) e) f) g) Question 2 a) b) c) d) e) f) g) T21263 What are the default values of the primitives data types int and float? Identify the types of literals listed below: i) 0.5 ii) A iii) false iv) a Why class is called object factory? What is Polymorphism? Name the concept of polymorphism which is implemented in Java programming? Name the key word that allocated dynamic memory to objects, variables. What are escape sequences? Write two examples and mention their working? Explain an example the working of explicit type conversion. Name the package that contains Wrapper classes. Write two Wrapper class and one example each. Write a prototype to convert an Integer value to string type. Differentiate between pure and impure functions. Differentiate between void Abc ( ) & Abc ( ). Write all different types integer data types in ascending order of their size. Why is main ( ) is static in nature by default? What is the difference between selection sort and bubble sort. THIS PAPER COMPRISES OF 4 PRINTED PAGES AND ZERO BLANK PAGE [1] [2] [1] [2] [1] [2] [1] [2] [1] [2] [2] [1] [1] [1] TURN OVER

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