A Program to display sum of 1 to 10 numbers using for loop in JAVA

A program to find sum of 1 to 10 an integer numbers using for loop in JAVA

Algorithm for sum of 1 to n

Step 1: Start
Step 2: Read a number n
Step 3: Initialize variables: i = 1, result = 0
Step 4: if i <= n go to Step 4 otherwise go to Step 7
Step 5: Calculate result = result + i
Step 6: Increment the i by 1 (i = i + 1) and go to Step 3
Step 7: Display result
Step 8: Stop

As 0 is an identity for addition i.e whenever any number is added to 0, same value is obtained. For e.g 7 + 0 = 7 Thats why we assign result = 0 as initial value

Working example

/**
 * Sum of 1 to 10 using for loop
 */
class SumDemoUsingForLoop
{
    public static void main(String[] args)
    {
        int i, result = 0, n = 10;

        for (i = 1; i <= n; i++)
        {
            // System.out.println("I: " + i);
            // System.out.println("Result B4: " + result);
            result += i;
            // System.out.println("Result After: "+ result);
        }

        System.out.println("Sum of series:" + result);
    }
}

Output

Sum of series: 55