// File:	Diamond.java
// Author:	Dr. Blaise W. Liffick
// Date:	Fall 2007

/* This program prints out a diamond shape, given
 * an input that indicates the size (number of lines)
 * of the shape.  When the size is odd, it prints a
 * shape exactly that size.  When the size is even,
 * it prints a shape one larger.
 */

import java.util.*;

public class Diamond {

	public static void main(String[] args) {
		
	int size;		// The size of the diamond.  Input.
	
	Scanner input = new Scanner(System.in);
	
	System.out.print("Enter size of diamond: ");
	size = input.nextInt();
	
	drawTop(size / 2 + 1);
	drawBottom(size / 2);

}
	
	//---------------------------------------
	// Draw the top "half" of the diamond shape.
	// Pass the height of the top in as a parameter.
	public static void drawTop(int height) {
		// for each line of the top
		for (int i = 1; i <= height; i++) {
			
			// print leading spaces
			for (int j = 1; j <= height - i; j++) {
				System.out.print(" ");
			}
			
			// print the line of asterisks
			for (int j = 1; j <= 2*i-1; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
	}
	
	//--------------------------------------------
	// Draw the bottom "half" of the diamond shape.
	// Pass the height of the bottom in as a parameter.
	public static void drawBottom(int height) {

		// for each line of the bottom
		for (int i = height; i >= 1; i--) {
			
			// print leading spaces
			for (int j = 1; j <= height - i + 1; j++) {
				System.out.print(" ");
			}
			
			// print the line of asterisks
			for (int j = 1; j <= 2*i-1; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
	}

}