Untitled

import java.util.Scanner; // Add Scanner class to allow user input from console

public class ShapePrinter
{

    public static void main(String[] args)
    {
        // Create a Scanner object to read user input
        Scanner scanner = new Scanner(System.in);

        // Ask the User for Input - What Shape?
        System.out.println("Enter the shape (triangle, diamond, rectangle):");

        String shape = scanner.nextLine().toLowerCase();

        // Ask the User for the size of the shape

        System.out.println("Enter the size:");
        int size = scanner.nextInt();

        // Ask the User for what type of Character to use for the Shape
        System.out.println("Enter the character to use for the shape:");
        char ch = scanner.next().charAt(0);

        // Prints Shape depending on user Choice
        switch (shape)
        {
            case "triangle":
                printTriangle(size, ch);
                break;
            case "diamond":
                printDiamond(size, ch);
                break;
            case "rectangle":
                printRectangle(size, ch);
                break;
            default:
                System.out.println("Invalid shape entered!");
                break;
        }
    }

    // Method to print a right-aligned triangle
    public static void printTriangle(int size, char ch)
    {
        for (int i = 1; i <= size; i++) // I is initialized for the Size of the Triangle
        {
            for (int j = 1; j <= size - i; j++)
            {
                System.out.print(" ");
            }
            for (int k = 1; k <= 2 * i - 1; k++)
            {
                System.out.print(ch);
            }
            System.out.println();
        }
    }

    // Method to print a diamond
    public static void printDiamond(int size, char ch)
    {
        int n = size / 2 + 1;  // N is initialized for the Size of Diamond
        // Upper part of the diamond
        for (int i = 1; i <= n; i++)
        {
            for (int j = 1; j <= n - i; j++)
            {
                System.out.print(" ");
            }
            for (int k = 1; k <= 2 * i - 1; k++)
            {
                System.out.print(ch);
            }
            System.out.println();
        }
        // Lower part of the diamond
        for (int i = n - 1; i >= 1; i--)
        {
            for (int j = 1; j <= n - i; j++)
            {
                System.out.print(" ");
            }
            for (int k = 1; k <= 2 * i - 1; k++)
            {
                System.out.print(ch);
            }
            System.out.println();
        }
    }

    // Method to print a rectangle
    public static void printRectangle(int size, char ch)
    {
        for (int i = 1; i <= size; i++) // I is initialized for the size of Rectangle
        {
            for (int j = 1; j <= size; j++)
            {
                System.out.print(ch);
            }
            System.out.println();
        }
    }
}