ICSE class IX computer practice Test 5 : Top Questions for free

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ICSE class IX computer practice Test

Section A

1. What is data type? Give examples.  [2]
2. What is literal? Give an example.    [2]
3. What will be the value of c.               [2]
   int a=9, b=5,c;
   c=a + b++ + –a;
   If a=19;                                                   [1]
4. What will be the value of ~a.
   int a=25,b=23;                                       [1]
   c=a|b;
   Value of c=__________________.
5. Write the output generated by the following                          [1]
   100+5<200 || 950>300+2;
6. Write difference between Implicit & Explicit type casting. [2]
7. What is an object.                                                                         [2]
8. 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]

Class IX Java programs