Thread: Loop Assignment

The question was about what the technique was for solving the problem using paper and pencil. It wasn't about writing a java program.
Can you make a list of the steps that need to be done to solve the problem?

I am not sure if this is what you mean, but these are the conditions that must be met.


1 <= i <= n
i = 1+2+3+4+...+n
s = sum of i

I'm done with the exercise and this is my outcome:

  public static void main( String[] args )
    {
        int i,n,s;
        n = 10; //10 is only as an example
        i = 1;
        s = 1;
        System.out.print(1);
        while( i!=n )
        {
            s += i;
            i++;
            System.out.print("+" + i);
            }
        i = n%100;
        s = s+i;
        System.out.print("=" + (s-1) );
        System.out.println();

Can You tell me if I could've done something easier? Or give me hints&tips?

Can you post some of the program's output to show what it generates?

Also some comments describing what the code does and why.
For example, what does this do?

       i = n%100;
       s = s+i;

This is the output: output.PNG
Is my code so messed up?

Is my code so messed up?

What does that mean?


Also add some comments to the code describing what the code does and why.
For example, what does this do?

       i = n%100;
       s = s+i;

I shouldn't even use the modulo command in there..
s = s+i; It adds the last number from the loop (value of n) to s (because i!=n). It might be written as s = s+n as well. i = 2+3+4+5+...+n. There is no 1 in i (the loop) because int i = 1. It could be i = 0 (, but professor told us that our application must contain:

int i,n,s;
        n = //Input;
        i = 1;
        s = 1;
        System.out.print(1);
        while( i!=n ) {
// WRITE YOUR CODE HERE!
}

I still don't see any comments in the code explaining...