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ICSE Class IX Prelims 2021 : Computer Applications (Greenwood High International School, Bengaluru)

2 pages, 11 questions, 7 questions with responses, 7 total responses,

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GREENWOOD HIGH UNIT TEST 1- JULY 2020 SUBJECT Computer Applications Grade 9 Date: 29/07/20 Question 1 Choose the correct answer for the following: Time: 40 min Max. Mark: 25 [5X1] i)_________ are non executable statements in Java a) Expressions b) Identifiers c) Logical operators d) Comments ii) The ___________ construct means the execution of statement(s) depending upon a condition or test, and takes one of two course of action. a) sequence b) selection c) iteration d) looping iii) Which of the following is a valid literal ? a) public b) variable x c) void d) 29 iv) What is the size(in bytes) and default value of int data type ? a) 4 bytes , 0 b) 8 bytes , 1 c) 2 bytes , 0 d) 16 bytes , 1 v) In object oriented programming _______________ is the concept that has the ability for a message or data to be processed in more than one form. a) Encapsulation b) Abstraction c) Polymorphism d) Inheritance THIS PAPER HAS 2 PRINTED PAGES 1 Question 2 Write the output of the following code fragment : i) int a=120 , b=a - 32; char c1=(char) a; char c2=(char)b; System.out.println("c1="+c1); System.out.println("c2="+c2); System.out.println(c1+c2); [4X2] ii) System.out.print(!((31%2 > 81/4) && (1%3<12%4))); System.out.println(" 4="+2+2); iii) iv) What will be the value of a and r after executing following Java Statements : int a= 10 , r=5; int m=r++ - 3/2 * ++a; r+= (a++ * 2 + 2 * ++r - m)/2; Evaluate the following Java expression . int x=10, y=12 , z=x++; int res= x * 2 + z++ %3 - ++y/2 - 6; System.out.println(res); System.out.println(x++ - ++z); Question 3 Convert the following expression into valid Java statement i) [2] Z = 4.52x+y8 (x-y) Question 4 [10] Write a Java program to enter a character and check whether it is uppercase , lowercase , digit or a special character and display the result appropriately. [Use Streams] [Use Nested Ternary Operator] THIS PAPER HAS 2 PRINTED PAGES 2

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Additional Info : ICSE Class IX Prelims 2021 : Computer Applications (Greenwood High International School, Bengaluru)

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