public class TriangleUtilities {

    public static String getRow(int numberOfStars) {
        String output = "";
        for(int i=0; i < numberOfStars; i++) {
            output = output + "*";
    }
            return output;
       }
 
    public static String getTriangle(int numberOfRows) {
        String results = "";
        for(int i=0; i< numberOfRows; i++) {
         for(int j=0; j<=i; j++) {
             results = results + "*";
            } 
            results = results + "\n";
        } 
        return results;
    }


    public static String getSmallTriangle() {
        String results = "";
        for (int i=0; i<4; i++) {
        for (int j=0; j<=i; j++){
            results = results + "*";
        }
        results = results +"\n";
    }
        return results;
    }

    public static String getLargeTriangle() {
         String results = "";
        for (int i=0; i<9; i++) {
        for (int j=0; j<=i; j++){
            results = results + "*";
        }
        results = results +"\n";
    }
        return results;
    }
}