Java Class Code

Main.java

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        int counter = 1;
        while(counter<5){
            System.out.println("Hello World!");
            System.out.println("Hello Dennis!");

            counter++;
        }

        for(int i=0; i<5; i++){
            System.out.println("Counter: " + i);
        }

        Scanner input = new Scanner(System.in);
        System.out.print("Please enter a side length: ");
        int size = input.nextInt();

        //System.out.println(DrawBox(size));
        System.out.println(DrawTriangle(size));
    }


    public static String DrawBox( int sideLength ){
        String returnString = "";

        // Top of Box
        returnString += RepeatString(sideLength, "*");

        returnString += "\n";

        //printing the sides
        for(int i=1; i<sideLength; i++){
            returnString += "*";
            returnString += RepeatString(sideLength - 2, " ");
            returnString += "*\n";
        }

        // Bottom of Box
        returnString += RepeatString(sideLength, "*");

        return returnString;
    }


    public static String DrawTriangle(int sideLenth){
        String returnString = "";

        //top
        returnString += "*\n";

        //body
        for(int i=0; i<sideLenth-2; i++){
            returnString += "*";
            returnString += RepeatString(i, " ");
            returnString += "*\n";
        }

        returnString += RepeatString(sideLenth, "*");

        return returnString;
    }


    public static String RepeatString(int times, String ch){
        String returnString = "";

        for(int i=0; i<times; i++){
            returnString += ch;
        }

        return returnString;
    }
}