JAVA Display Sum of n Natural Numbers

To display the sum of the first n natural numbers in Java, you can use a loop to iterate through the numbers and keep a running total.

Here's an example of how to do this using a for loop:

int n = 10;
int sum = 0;

for (int i = 1; i <= n; i++) {
    sum += i;
}

System.out.println("Sum of first " + n + " natural numbers: " + sum);

This will output the following:

Sum of first 10 natural numbers: 55

You can also use a while loop to achieve the same result:

int n = 10;
int sum = 0;
int i = 1;

while (i <= n) {
    sum += i;
    i++;
}

System.out.println("Sum of first " + n + " natural numbers: " + sum);

This will also output the sum of the first 10 natural numbers.

You can use a similar approach to calculate the sum of the first n natural numbers for any value of n. Simply change the loop condition to the desired upper limit.