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Class 10 Notes 2016 : Computer Applications (Ryan International School, Nerul, Navi Mumbai)

4 pages, 20 questions, 10 questions with responses, 10 total responses,

Anushka gulvane
SIES College of Arts, Science and Commerce, Mumbai
12 arts

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Important Practice Questions for ICSE [Set 1] Section A Answer the below questions by choosing any one of the four given options: 1. Java Virtual Machine (JVM) is an: (a) Interpreter (b) Compiler Code (d) Byte Code (c) Machine 2. Which of the following is non-primitive data type: (a) char (b) long (c) String (d) short 3. The statement n++ is equivalent to: (a) ++n (b) n=n+1 n+1 (d) none (c) 4. The java compiler translates java source programs to: (a) Machine Language (b) Bytecode (c) System Language (d) Native Code 5. The size of int data type is: (a) 8 bits (b) 16 bits (d) 64 bits (c) 32 bits 6. What is the return type of a constructor? (a) void (b) Boolean (c) int (d) None of the above 7. What is the result produced after the following statements are executed: int a = 2,b, c; a = a+4; b = 3*a; c = a-b; System.out.println(2+c+c); (a) 2cc (b) -22 (d) 22 (c) 200 8. a[16] is the _________ element of the array declared as char a[20]; (a) 16th (b) 15th (c) th 17 (d) None of the above 9. The access specifier, return type and function signature together is known as: Function ________ (a) Prototype (b) Signature (c) Definition (d) Call 10. The default delimiter in Scanner class is: (a) Tab character (b) Blank Character (c) All of the above (d) None of the above 11. With respect to the input This is a cat , what will be the values in x and y after the execution of the following statements: String x = sc.next(); String y = sc.nextLine(); (a) x=This , y=is (b) x=This , y=is a cat (c) x=This is a , y=cat (d) None of the above 12. What is the return type of the following method: x.equals(y) (a) yes or no (b) right or wrong (c) All of the above (d) None of the above 13. Two Arithmetic expressions can be joined with if statement, using: (a) Logical operator (b) Null operator (c) Arithmetic operator (d) Ternary operator 14. Which of the following is not a keyword? (a) false (b) void (c) while (d) main 15. Which of the following statement is an invalid array declaration? (a) int [ ][ ]n; (b) int n[ ]; (c) int n[4]; (d) int n[ ][ ]; 16. More than one java statements together is called a block/compound statements. They are enclosed in: (a) Parenthesis (b) Braces (c) Square brackets (d) /* and */ 17. An array is created as follows: Boolean b[]=new Boolean[10]; How many bits will be used for the array? (a) 1 (b) 8 (c) 16 (d) 10 18. Character function which checks whether a character is a digit or not: (a) isLetterOrDigit() (b) isDigit() (c) Both a and b (d) None of the above 19. A class is a ______________ data type. (a) Primitive (b) Composite defined (d) both b and c (c) user- 20. The property of OOP which is implemented through the concept of function overloading (a) Encapsulation (b) Abstraction (c) Polymorphism (d) Modularity Section B Given the following programming code: public boolean x(int a, int b) { boolean c = true; while(a>1 && b>1) { if(a>b) a-=b; else b-=a; } if(a ==1 || b == 1) c = false; return c; } (a) What will be the output of the above program code for, (i) x (28, 29) (ii) x (27, 39) (b) What is the above method calculating? (Answer should be in one line)

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