Java Program: Printing an Inverted Triangle using Asterisks

"For" loops are efficient if you know how many times you want to repeat or execute the statement or group of statements, so here the counters (i and j) will start at 1 and end with the desired width of the inverted triangle. Remember, that if your counters start at 1 (i.e. i=1) it will terminate at a value less than or equal to that value (i.e. i<=width) to avoid "Off by One" errors.

//the class starts here!

public class InvertedTriangle{

    private int width;

//we will use a constructor to set the value of "width"

    public InvertedTriangle (int _width){

        width = _width;

    }

//the method to create the inverted triangle with "width"

    public String toString(){

        String r = "";

        int num = width;

        for(int i=1; i<=width; i++){

            for(int j=1; j<=num; j++){

                r = r + "*";

            }

            num = num - 1;

            r = r + "\n";

        }

        return r;

    }

}

so that's that.. :D So we make another class to test "Inverted Triangle". We will make another class "TestInvertedTriangle" with the main method (using 10 as width, you can change this value if you want..)

public class TestInvertedTriangle{

    public static void main(String[] args){

        InvertedTriangle c = new InvertedTriangle(10);

        System.out.print(c.toString());

    }

}

if you have any questions, please do leave a message!

NOTE: This is a program that I made myself. I have tested it and came out with the desired output. I am also new in Java programming and I may not have applied the "elegant way" of writing Java programs. So please do understand. :D