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## ICSE class IX computer practice Test

Section** A**

- What is data type? Give examples. [2]
- What is literal? Give an example. [2]
- What will be the value of c. [2]

int a=9, b=5,c;

c=a + b++ + –a;

If a=19; [1] - What will be the value of ~a.

int a=25,b=23; [1]

c=a|b;

Value of c=__________________. - Write the output generated by the following [1]

100+5<200 || 950>300+2; - Write difference between Implicit & Explicit type casting. [2]
- What is an object. [2]
- Write the expression in Java for [2]

Sin x+ √(〖ax〗^2-bx+c)/2a

**Section B**

**Write any one program from the following. [10]**

Write a program to To find and display the factorial of a number input by the user ( the factorial of a non negative integer n , denoted by n!, is the product of all integers less than or equal to n.**Example:**

Sample input : n =5

Sample output : 5!=1x2x3x4x5=120

write a class to input a number and print its odd factors [6 has odd factors 1,3]