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COMPUTER APPLICATIONS - Model Paper 1

2 pages, 32 questions, 32 questions with responses, 84 total responses,    0    0
Arjun Mohan
Good Earth School, Kanchipuram
1st to 12th
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COMPUTER APPLICATONS (THEORY) (Two Hours) This paper is divided into two sections. You are to answer 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. While answering questions form this Part, indicate briefly your working and reasoning, wherever required. Question 1 (a) (b) (c) (d) (e) State the difference between while and do-while statement. What is break in switch statement. What do you mean by this keyword. What is meant by an infinite loop? Give an example. State the difference between constructor and function (method). [2] [2] [2] [2] [2] Question 2 (a) Name the following i) A package needed to perform input and output tasks. ii) A function that returns index of last occurrence of a specified character. iii) A function to remove leading and trailing space of string. iv) A OOPs principal that implement function overloading. (b) Write any two Non primitive data type. (c) Distinguish between char and String . (d) Write an equivalent Java expression for i) [4] [2] [2] [2] 1 s ut at 2 2 ii) r b b 2 4ac 2a Question 3 (a) What do you understand by prefix and postfix operators? Give example. (b) Give the output of the following. char ch= A ; int x = 32, y = 2; i) System.out.println(ch+y); ii) System.out.println(ch+x); iii) System.out.println(++ch); iv) System.out.println((char)(ch+x+y)); (c) What do you mean by Object. (d) Find the value of z in the following program segment. int x = 5, y = 12, z; z = (x>= y ? x y : y x ); (e) if String x = Computer , y = Applications ; What do the following functions return for: i) x.compareTo(y); ii) y.indexOf(y.charAt(8)); iii) x.length( ) > y.length( ); iv) y.indexOf( i ,4); (f) Explain Function. Write the syntax of user defined function. (g) Difference between default and parameterized constructor. Page - 1 - [2] [4] [2] [2] [4] [4] [2]

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