Function WriteRectangle Learn programming Java

Lesson:

Functions


Exercise:

Function WriteRectangle 45


Objetive:

Create a function WriteRectangle to display a (filled) rectangle on the screen, with the width and height indicated as parameters, using asterisks. Complete the test program with a Main function:

WriteRectangle(4,3);

should display
****
****
****

Create also a function WriteHollowRectangle to display only the border of the rectangle:
WriteHollowRectangle(3,4);

should display
***
* *
* *
***


Code:

import java.util.*;
public class Main
{
	private static void WriteRectangle(int width, int height)
	{
		for (int i = 0; i <= width; i++)
		{
			for (int j = 0; j <= height; j++)
			{
				System.out.print("*");
			}
			System.out.println();
		}
	}

	private static void WriteHollowRectangle(int width, int height)
	{

		for (int i = 1; i <= height; i++)
		{
			for (int j = 1; j <= width; j++)
			{
				if ((i == 1) || (i == height))
				{
					System.out.print("*");
				}
				else
				{
					if ((j == 1) || (j == width))
					{
						System.out.print("*");
					}
					else
					{
						System.out.print(" ");
					}
				}
			}
			System.out.println();
		}
	}
	public static void main(String[] args)
	{
		WriteRectangle(4, 3);
		System.out.println();
		WriteHollowRectangle(3, 4);
		new Scanner(System.in).nextLine();
	}
}