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

Write the return type of the following library functions: 

1. isLetterOrDigit(char)
2. replace(char, char) 

Give the output of the following :

(i) Math.floor (- 4.7)

(ii) Math.ceil(3.4) + Math.pow(2,3)

Name the mathematical function which is used to find sine of an angle given in radians.

Name a string function which removes the blank spaces provided in the prefix and suffix of a string. 

What value will Math.sqrt (Math.ceil (15.3)) return?

What is the output of Math.ceil(5.4) + Math.ceil(4.5)?

Which of the following mathematical methods returns only an integer?

Write Java expression for:

`(|a + b|)/(sqrt(a^2 + b^2))`

Write the java expression for `root3x + sqrty`

The absence of which statement leads to fall through situation in switch case statement?

Consider the following program segment and select the output of the same when n = 10:

switch(n)
{Case 10: System.out.println(0*2);
case 4: System.out.println(n*4); break;
default : Syslem.out.println(n);
}

Rewrite the following code using the if-else statement:

int m = 400;
double cl). = (m>300) ? (m/10.0) * 2; (m/20.0) - 2;

Give the output of the following program segment:

int n = 4279; int d;
while(n>0)
(d=n%10;
System.out.println(d);
n=n/100;
}

Which of the following data type cannot be used with switch case construct?

Which of the following is not true with regards to a switch statement?

Rewrite the following code using single if statement.

if(code=='g')
System.out.println("GREEN");
else if(code=='G')
System.out.println("GREEN");

A student executes the following program segment and gets an error. Identify the statement which has an error, correct the same to get the output as WIN.

boolean x=true;
switch(x)
{     case 1:System.out.println("WIN");break;
      case 2;System.out.println("LOOSE");
}

Using the switch-case statement, write a menu driven program to do the following :

(a) To generate and print Letters from A to Z and their Unicode Letters Unicode

(b) Display the following pattern using iteration (looping) statement: 1

Write two separate programs to generate the following patterns using iteration (loop) statement:

(a)

Write two separate programs to generate the following patterns using iteration (loop) statement:

(b)