Write a Java Program to convert int type variables to String

In Java, we can convert an integer type variable to a String using the Integer.toString() method.

This method takes an integer as an argument and returns its equivalent String representation.

Here is an example program to demonstrate this:

public class IntToString {
    public static void main(String[] args) {
        int num = 123;
        String str = Integer.toString(num);
        System.out.println("String value: " + str);
    }
}

The output of the above program will be:

String value: 123

Calculating the Sum of Natural Numbers in Java

To calculate the sum of natural numbers, we can use a simple for loop and keep adding the numbers until the desired sum is obtained.

Here is an example program to demonstrate this:

public class SumOfNaturalNumbers {
    public static void main(String[] args) {
        int num = 10;
        int sum = 0;
        for (int i = 1; i <= num; i++) {
            sum += i;
        }
        System.out.println("Sum of first " + num + " natural numbers is: " + sum);
    }
}

The output of the above program will be: