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ICSE Class X Board Exam 2017 : Computer Applications (Solved Paper)

11 pages, 40 questions, 3 questions with responses, 3 total responses,

Sumanta Pan
Oxford High School, Howrah

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ICSE Question Paper 2017 (Solved) Computer Applications Class X SECTION A (40 Marks) Answer all questions from this Section SECTION A (40 MARKS) Attempt all questions Question 1: a) What is Inheritance ? [2] Ans. Inheritance is the process by which one class extends another class to inherit the variables and functions and add any additional variables and methods. b) Name the operators listed below [2] i) < ii) ++ iii) && iv) ?: Ans. i) Less than comparison operator ii) Increment operator iii) And logical operator iv) Ternary operator c) State the number of bytes occupied by char and int data types.[2] Ans. char occupies two bytes and int occupied 4 bytes. d) Write one difference between / and % operator. [2] Ans. / is division operator while % is modulus operator which gives the remainder on dividing two numbers. e) String x[] = { SAMSUNG , NOKIA , SONY , MICROMAX , BLACKBERRY }; Give the output of the following statements:[2] i) System.out.println(x[1]); ii) System.out.println(x[3].length()); Ans. i) NOKIA ii) MICROMAX .length() = 8 Question 2: a) Name of the following: [2] i) A keyword used to call a package in the program. ii) Any one reference data types. Ans. i) import ii) String b) What are the two ways of invoking functions? [2] Ans. Call by value and call by reference c) State the data type and value of res after the following is executed : [2] char ch = t ; res = Character.toUpperCase(ch); Ans. Data type of res is char and value is T d) Give the output of the following program segment and also mention the number of times the loop is executed: [2] int a,b;

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