In this Java tutorial, you’ll learn how to Calculate the Sum of Natural Numbers using the Java programming language.
How to calculate the sum of natural numbers in JAVA?
Example 1: using for loop
RUN CODE SNIPPETpublic class Main
{
public static void main(String[] args)
{
int num = 50, sum = 0;
for(int i = 1; i <= num; ++i)
{
sum += i;
}
System.out.println("Sum = " + sum);
}
}OUTPUT
Sum = 1275
In the above program, the added value is stored in the variable sum. The loop adds the value from 1 to the given number 50.
Example 2: using while loop
RUN CODE SNIPPETpublic class Main
{
public static void main(String[] args)
{
int num = 5, i = 1, sum = 0;
while(i <= num)
{
sum += i;
i++;
}
System.out.println("Sum = " + sum);
}
}OUTPUT
Sum = 15
In the above example, the while loop executes until the “i<=num” condition is true.
