Java 打印圣诞树星形图案程序

编写一个 Java 程序，使用 for 循环打印圣诞树星形图案。

package Shapes3;

import java.util.Scanner;

public class ChristmasTreeStar1 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Please Enter Chirstmas Tree Width & Height = ");
		int width = sc.nextInt();
		int height = sc.nextInt();
		
		int space = width * height;
		int i, j, k, n = 1;
		
		System.out.println("Printing Chirstmas Tree Pattern of Stars");
		
		for (int x = 1; x <= height; x++ ) 
		{

			for (i = n; i <= width; i++ )
			{
				for(j = space; j >= i; j--)
				{
					System.out.print(" ");
				}
				for(k = 1; k <= i; k++)
				{
					System.out.print("* ");
				}
				System.out.println();
			}
			n = n + 2;
			width = width + 2;		
		}
		for(i = 1; i <= height - 1; i++)
		{
			for(j = space - 3; j >= 0; j--)
			{
				System.out.print(" ");
			}
			for(k = 1; k <= height - 1; k++)
			{
				System.out.print("* ");
			}
			System.out.println();
		}
	}
}

此 Java 示例 允许输入一个字符，并使用函数打印给定字符的圣诞树图案。

package Shapes3;

import java.util.Scanner;

public class ChristmasTreeStar2 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		sc = new Scanner(System.in);
		
		System.out.print("Please Enter Christmas Tree Width & Height = ");
		int width = sc.nextInt();
		int height = sc.nextInt();
		
		System.out.print("Enter Character for Christmas Tree Pattern = ");
		char ch = sc.next().charAt(0);
		
		System.out.println("Printing Christmas Tree Pattern");
		ChristmasTreePattern(width, height, ch);	
	}
	
	public static void ChristmasTreePattern(int width, int height, char ch)
	{
		int space = width * height;
		int i, j, k, n = 1;
		
		for (int x = 1; x <= height; x++ ) 
		{

			for (i = n; i <= width; i++ )
			{
				for(j = space; j >= i; j--)
				{
					System.out.print(" ");
				}
				for(k = 1; k <= i; k++)
				{
					System.out.print(ch + " ");
				}
				System.out.println();
			}
			n = n + 2;
			width = width + 2;		
		}
		for(i = 1; i <= height - 1; i++)
		{
			for(j = space - 3; j >= 0; j--)
			{
				System.out.print(" ");
			}
			for(k = 1; k <= height - 1; k++)
			{
				System.out.print(ch + " ");
			}
			System.out.println();
		}	
	}
}

Please Enter Christmas Tree Width & Height = 9 5
Enter Character for Christmas Tree Pattern = *
Printing Christmas Tree Pattern
                                             * 
                                            * * 
                                           * * * 
                                          * * * * 
                                         * * * * * 
                                        * * * * * * 
                                       * * * * * * * 
                                      * * * * * * * * 
                                     * * * * * * * * * 
                                           * * * 
                                          * * * * 
                                         * * * * * 
                                        * * * * * * 
                                       * * * * * * * 
                                      * * * * * * * * 
                                     * * * * * * * * * 
                                    * * * * * * * * * * 
                                   * * * * * * * * * * * 
                                         * * * * * 
                                        * * * * * * 
                                       * * * * * * * 
                                      * * * * * * * * 
                                     * * * * * * * * * 
                                    * * * * * * * * * * 
                                   * * * * * * * * * * * 
                                  * * * * * * * * * * * * 
                                 * * * * * * * * * * * * * 
                                       * * * * * * * 
                                      * * * * * * * * 
                                     * * * * * * * * * 
                                    * * * * * * * * * * 
                                   * * * * * * * * * * * 
                                  * * * * * * * * * * * * 
                                 * * * * * * * * * * * * * 
                                * * * * * * * * * * * * * * 
                               * * * * * * * * * * * * * * * 
                                     * * * * * * * * * 
                                    * * * * * * * * * * 
                                   * * * * * * * * * * * 
                                  * * * * * * * * * * * * 
                                 * * * * * * * * * * * * * 
                                * * * * * * * * * * * * * * 
                               * * * * * * * * * * * * * * * 
                              * * * * * * * * * * * * * * * * 
                             * * * * * * * * * * * * * * * * * 
                                           * * * * 
                                           * * * * 
                                           * * * * 
                                           * * * *