(English Medium) ICSE Class 10 - CISCE Important Questions for Computer Applications

Differentiate between formal parameter and actual parameter. 

How are private members of a class different from public members?

Design n class to overload a function SumSeriesO as follows: 

(i)

void SumSeries(int n, double x) – with one integer argument and one double argument to find and display the sum of the series given below:

`"s"  = "x"/1 - "x"/2 + "x"/3 - "x"/4 + "x"/5`...... ...... ...... to n terms

(ii)

void SumSeries() – To find and display the sum of the following series:
s = 1 + (1 x 2) + (1 x 2 x 3) + ….. + (1 x 2 x 3 x 4 x 20)

Write a menu-driven program to display the pattern as per the user’s choice. 

For an incorrect option, an appropriate error message should be displayed.

Write a method prototype name check() which takes an integer argument and returns a char:

The number of values that a method can return is ______.

A method which does not modify the value of variables is termed as ______.

Method which is a part of a class rather than an instance of the class is termed as ______.

Define a class to overload the function print as follows:

Method which reverses a given number is ______:

Invoking a method by passing the objects of a class is termed as ______.

Assertion (A): Static method can access static and instance variables.

Reason (R): Static variables can be accessed only by static method.

Method prototype for the method compute which accepts two integer arguments and returns true/false.

The statement that brings the control back to the calling method is ______.

Assertion(A): An argument is a value that is passed to a method when it is called.

Reason(R): Variables which are declared in a method prototype to receive values are called actual parameters.

Define a class to overload the method display() as follows:

void display(): To print the following format using nested loop.

1 2 1 2 1

1 2 1 2 1

1 2 1 2 1

void display (int n, int m): To print the quotient of the division of m and n if m is greater than n otherwise print the sum of twice n and thrice m. double display (double a, double b, double c) - to print the value of z where

z = p × q

`p=(a+b)/c`    q = a + b + c

The keyword used to call package in the program:

The extension of a Java source code file is ______.

What is the output of the Java code given below?

String color [ J = {"Blue", "Red", "Violet"}; System.out.println(color[2].length();

Rewrite the following do while program segment using for:

x = 10; y = 20;
do
{
   x++;
   y++;
}while (x<=20);
System.out.println(x*y);