Question

write a program in java to enter number one by one and calculate and print it's sum and average,using while loop​

Answer 1

Explanation:

In this program, you'll learn to calculate the sum of natural numbers using for loop and while loop in Java.

To understand this example, you should have the knowledge of the following Java programming topics:

Java for Loop

Java while and do...while Loop

The positive numbers 1, 2, 3... are known as natural numbers and its sum is the result of all numbers starting from 1 to the given number.

For n, the sum of natural numbers is:

1 + 2 + 3 + ... + n

Example 1: Sum of Natural Numbers using for loop

public class SumNatural {

public static void main(String[] args) {

int num = 100, sum = 0;

for(int i = 1; i <= num; ++i)

{

// sum = sum + i;

sum += i;

}

System.out.println("Sum = " + sum);