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ICSE Class IX Mid-term 2024 : Computer Applications

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SARADA EDUCARE Affiliated To C.I.S.C.E TIME : 2 hrs. 1399, Laskarhat Road, Picnic Garden, Kolkata-700039 HALF-YEARLY EXAMINATION 2023-2024 SUBJECT : Computer Application CLASS : IX FULL MARKS:80 Section A [40 Marks] (Attempt all questions) Question 1 [5 x 2 = 10] (a) Define Data Abstraction. (b) Define polymorphism. (c) What are java reversed word ? Name any five. (d) What is the difference between = and = = ? (e) Difference between System.out.print and System.out.println ? Question 2 (a) Give the output of the following: i)Math.floor(-4.7) (ii) Math.ceil(3.4) + Math.pow(2, 3) (b) Give the output of the following expression: a+= a++ + ++a + a + a ; when a = 7 (c) Convert the following arithmetic expression into java statement. 1 1 ab + 2 cd 3 (d) System.out.print( BEST ); System.out.println( OF LUCK ); Choose the correct option for the output of the above statements: (i) BEST OF LUCK (ii) BEST OF LUCK Question 3 (a) write down the syntax with the reference of Java Programming : i)To accept fractional value (float) x through Scanner class ii)To create a scanner object iii)Name two kinds of java data type (b)Write the output of the following code : int m=2 int n=15; for(int i=1;i<5;i++) m++; - - n; System.out.println("m="+m); System.out.println("n="+n); (c) Rewrite the snippet using Ternary operators: if(a<b) { c=(a+b); } else { c=(a-b); [2] [2] [2] [2] [2] [2+2] [2] [2] [2] [1+1+1] [5] [2]

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