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ICSE Class X Prelims 2018 : Computer Applications Prelim 2 (Jamnabai Narsee School (JNS), Mumbai)

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Minu Joshi
Jamnabai Narsee School (JNS), Mumbai
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. SECOND PRELIMINARY EXAMINATION 2018 COMPUTER APPLICATIONS Class: X Marks: 100 Time: 2 Hrs. Date: 10/01/2018 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 for writing answers. This Paper is divided into two Sections. Attempt all question from Section A and four question from Section B. The intended marks for questions or parts of questions are given in brackets [ ]. This paper consists of 4 printed pages. SECTION A (40 MARKS) (All questions are compulsory) Question 1. a) [4] Give one word for the following. i) The keyword that is used to distinguish between instance and local variables. - this ii) The conversion of a bigger data type to a smaller data type. typecasting iii) The operator used to create an object of the class. new iv) The variable whose single copy is made for all the objects of a class. static b) What is Java Byte code? [2] c) State the output of the following code segment : [2] int a = 5 , b; b=2 * a - - + - - a; System.out.println (a+ , +b); d) Differentiate between compareTo( ) and equals( ) methods with the help of an [2] example. Question 2. a) Write an equivalent java expression for the following. [2] a+b2/+c4 b) What is a package? How can you include java package in your application? [2] c) How do objects communicate with each other? [2] d) Differentiate between primitive and non-primitive data types. [2] (1)

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