Loops

[Swati Samudra]

I wan't to add integers 1 to 30. How can I do that in java.
I tried using for and while loop but failed to add the integers.
I only get 1,2,3 etc.But I wan't to add 1+2+3 etc.
It has to be
0 + 1 =1
1 + 2 =3
3 + 3 =6
6 + 4 =10
10 + 5 =15
15 + 6 =21 and so on
upto 30.
Please help me or tell me the other way I can do it in Java. Correct me if I am wrong.

[YesYouretheOne]

First you can try killing a chicken with a bull's knife by using OOP, ie classes.
main()
{
printf(1+2+3+.....+30);
}

[Angela Poynton]

YesYourTheOne .... please read here
about our naming policy ... your name does not comply please register again with a valid name.
Also I deleted your prvious post because it was rude and irrelevent to the discussion. Please keep your posts friendly, helpful and above all .. on topic!

[Peter Tran]

Swati,
This will do what you want,

public class Summation {
    public static void main(String[] argv) {
        int sum = 0;
        for (int i = 1; i < 31; ++i) {
            System.out.print(sum + " + " + i + " = ");
            sum += i;
            System.out.println(sum);
        }
    }
}

[Swati Samudra]

Thanks Peter Tran,
I tried the coding. It's exactly what I was looking for but was not able to do the way you did it coz I was not using your first println statement:
System.out.println(sum+"+"+i+"=");
Thanks again.
[This message has been edited by Swati Samudra (edited January 18, 2001).]