Computer Applications

Convert the following for loop segment to an exit-controlled loop.

for (int x = 1, y = 2; x < 11; x += 2, y += 2) {
    System.out.println(x + "\t" + y);
}

Java Iterative Stmts

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Answer

int x = 1, y = 2;
do {
    System.out.println(x + "\t" + y);
    x += 2;
    y += 2;
} while (x < 11);

Reason — We need to convert the for loop given in question to a do-while loop as do-while is an exit-controlled loop whereas for and while are entry-controlled loop.

1. Initialization:

The variables x and y are initialized before the do-while loop: int x = 1, y = 2;.

2. Loop Body:

The statements inside the for loop are moved into the body of the do block:

    System.out.println(x + "\t" + y);
    x += 2;
    y += 2;

3. Condition Check:

The condition x < 11 is evaluated after executing the loop body, ensuring the loop is exit-controlled.

Answered By

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Define a class to accept a number and check whether it is an FDS Number or not. A number is called an FDS Number if the sum of the factorials of its digits equals the number itself.
Example 1:
Input: 145
Output: FDS Number [1! + 4! + 5! = 1 + 24 + 120 = 145]
Example 2:
Input: 123
Output: Not an FDS Number [1! + 2! + 3! = 1 + 2 + 6 ≠ 123]

import java.util.Scanner;

class KboatFDSNum {
    
    static int fact(int d) {
        int f = 1;
        _______(1)_________ {
            _______(2)_________
        }
        _______(3)_________
    }

    public static void main(String args[]) {
        Scanner in = new Scanner(System.in);

        System.out.print("Enter a number: ");
        int num = in.nextInt();

        int t = num, sum = 0;
        
        _______(4)_________ {
            _______(5)_________
            _______(6)_________
            _______(7)_________
        }
        
        _______(8)_________ {
            _______(9)_________
        } else {
            _______(10)_________
        }
    }
}

View Answer

How many times will the following loop execute? Write the output of the code:

int a = 5;
while (a > 0) {
    System.out.println(a-- + 2);
    if (a % 3 == 0)
        break;
}

View Answer

Write a program to input a number and find whether the number is an emirp number or not. A number is said to be emirp if the original number and the reversed number both are prime numbers.
For example, 17 is an emirp number as 17 and its reverse 71 are both prime numbers.
View Answer

Computer Applications

Convert the following for loop segment to an exit-controlled loop.

Java Iterative Stmts

Answer

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Give the output of the following program segment. How many times is the loop executed?

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Write a program to input a number and find whether the number is an emirp number or not. A number is said to be emirp if the original number and the reversed number both are prime numbers.
For example, 17 is an emirp number as 17 and its reverse 71 are both prime numbers.

Computer Applications

Convert the following for loop segment to an exit-controlled loop.

Java Iterative Stmts

Answer

Related Questions

Give the output of the following program segment. How many times is the loop executed?

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Write a program to input a number and find whether the number is an emirp number or not. A number is said to be emirp if the original number and the reversed number both are prime numbers.For example, 17 is an emirp number as 17 and its reverse 71 are both prime numbers.

Write a program to input a number and find whether the number is an emirp number or not. A number is said to be emirp if the original number and the reversed number both are prime numbers.
For example, 17 is an emirp number as 17 and its reverse 71 are both prime numbers.