List of top Computer Applications Questions asked in ICSE Class X board

Give the output of the following Java program segment:

String a[] = {"Atasi", "Aditi", "Anant", "Amit", "Ahana"};
System.out.println(a[1].charAt(1) + "*" + a[2].charAt(2));

The output of the above statement is:

Assertion and Reasoning

Assertion (A): The substring() method modifies the original String.

Reason (R): The substring() method can extract part of a String from a specific index.

Rewrite the following program segment using a for loop:

Given program segment:

int a = 5, b = 10; 
while (b > 0)
{
    b -= 2;
}
System.out.println(a * b);

Note: Ensure that the variable $b$ remains accessible for the System.out.println statement after the loop terminates.

Define a class named StepTracker with the following specifications:

Member Variables:

• String name — stores the user's name.
• int sw — stores the total number of steps walked ($sw$).
• double cb — stores the estimated calories burned ($cb$).
• double km — stores the estimated distance walked in kilometers ($km$).

Member Methods:

1. void accept()
To input the name and the sw (steps walked) using Scanner class methods only.

2. void calculate()
Calculates calories burned ($cb$) and distance in ($km$) based on steps walked ($sw$) using the provided estimation logic.

Give the output of the following program segment and mention how many times the loop is executed.

int K = 1;
do
{
   K += 2;
    System.out.println(K);
} while (K <= 6);