public class TriangleUtilities {

    public static String getRow(int numberOfStars) {
        String width = "";
        for (int i = 0; i < numberOfStars; i++){
        width += "*";
        }
        return width;
    }
    
    public static String getTriangle(int numberOfRows) {
        String triangle = "";
        for (int i = 1; i <= numberOfRows; i++){
            
            for (int b = 1; b <= i; b++){
                triangle += "*";
        }
        triangle += "\n";
    }
    return triangle;}


    public static String getSmallTriangle() {
        return getTriangle(4);
    }

    public static String getLargeTriangle() {
        return getTriangle(9);
    }
}