Question

I’ve now googled around and tried various methods myself without any success.
So to the problem,
I’ve got this loop, I type in a number “n” ex. 10. Then the program counts from 1 to 10.
This is the loop I’m using.

n = Keyboard.readInt();
for(int e = 1; e <=n; e++)          
System.out.println(e);  

That works fine, but now I want to calculate the numbers that has been shown in loop so..It would be 1+2+3+4+5+6+7+8+9+10 (If ‘n’ was chosen as number 10) and it should give the calculation of that so it would say 1+2+3+4+5+6+7+8+9+10 = 55.

Would be great if anyone here could help me.

Thanks in advance,

Michael.

Answer 1

Do it like that:

   public static void main(String[] args) {
        int n = 10;
        int sum = 0;
        for(int e = 1; e <=n; e++)          
            sum = sum + e;
        System.out.println(sum);
    }