How can i print a triangle with “*”s using for loop in java?

Question

I want to draw a triangle with stars like below using for loop, but i really don\'t have any idea of how to do this ? Triangle is going to be like this:

*
**
**         


        

Answer 1

public static void main(String[] args)
{

    StringBuilder stars = new StringBuilder();

    for(int i = 0; i <= 10; i++)
    {
           stars.append("*");
           System.out.println(stars);
    }

}

Or alternatively using nested loops: (This is what the exercise was really trying to get you to do)

public static void main(String[] args)
{
    for(int i = 0; i <= 10; i++)
    {
        for(int j=0; j<=i; j++)
        {
            System.out.print("*");
        }
        System.out.print("\n");
    }
}