public class TriangleUtilities {

    public static String getRow(int numberOfStars) {
        StringBuilder builder = new StringBuilder();
        for(int i = 1;i<= numberOfStars;i++){
           builder.append("*");
        }
        return builder.toString();
    }
    
    public static String getTriangle(int numberOfRows) {
        StringBuilder builder = new StringBuilder();
           for(int i = 1; i <= numberOfRows; i++){
               String answer = getRow(i);
               builder.append(answer + "\n");
            }
        return builder.toString();
    }


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

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