CR-MicroLabs-Loops-NumbersTrianglesTables/TriangleUtilities.java

public class TriangleUtilities {

    public static String getRow(int numberOfStars) { 
        StringBuilder asterisks = new StringBuilder();

        for (int i = 1; i <= numberOfStars; i++) {
            asterisks.append("*");
        }
        return asterisks.toString();
    }

    public static String getTriangle(int numberOfRows) {
        StringBuilder asterisks = new StringBuilder();

        for (int i = 1; i <= numberOfRows; i++) {
            for (int j = 1; j <= i; j++) {
                asterisks.append("*");
            }
            asterisks.append("\n");
        }
        return asterisks.toString();
    }

    public static String getSmallTriangle() {
        StringBuilder asterisks = new StringBuilder();

        for (int i = 1; i <= 4; i++) {
            for (int j = 1; j <= i; j++) {
                asterisks.append("*");
            }
            asterisks.append("\n");
        }
        return asterisks.toString(); 
    }

    public static String getLargeTriangle() {         
        StringBuilder asterisks = new StringBuilder();

        for (int i = 1; i < 10; i++) {
            for (int j = 1; j <= i; j++) {
                asterisks.append("*");
            }
            asterisks.append("\n");
        }
        return asterisks.toString();   
    }
}