C#Exams 3. New House (on Java Code)

import java.util.Scanner;

public class _3_NewHouse {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner scan = new Scanner(System.in);
        int width = scan.nextInt();

        printTheRoofOfTheHouse(width);

        printTheFloorOfTheHouse(width);
    }

    private static void printTheRoofOfTheHouse(int size) {
        int hyphens = size / 2;
        int asterisks = 1;
        String hyphenSequence;
        String asteriskSequence;
        for (int row = 0; row <= size / 2; row++) {
            hyphenSequence = newString('-', hyphens);
            asteriskSequence = newString('*', asterisks);
            System.out.printf("%1$s%2$s%1$s\n", hyphenSequence,
                    asteriskSequence);
            hyphens--;
            asterisks += 2;
        }
    }

    private static void printTheFloorOfTheHouse(int size) {
        // TODO Auto-generated method stub
        String asteriskSequence = newString('*', size - 2);
        for (int row = 0; row < size; row++) {
            System.out.printf("|%s|\n", asteriskSequence);
        }
    }

    private static String newString(char ch, int size) {
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < size; i++) {
            sb.append(ch);
        }

        return sb.toString();
    }

}