Java 打印 K 形字母图案程序

使用 for 循环编写一个 Java 程序来打印 K 形字母图案。

package Alphabets;

import java.util.Scanner;

public class kShapeAlphabets1 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		int i, j, alphabet;
		
		System.out.print("Enter K Shape Alphabets Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing K Shape Alphabets Pattern");		
		
		for (i = rows - 1; i >= 0; i-- ) 
		{
			alphabet = 65;
			for (j = 0 ; j <= i; j++ ) 	
			{
				System.out.print((char)(alphabet + j) + " ");
			}
			System.out.println();
		}
		
		for (i = 1 ; i < rows; i++ ) 
		{
			alphabet = 65;
			for (j = 0 ; j <= i; j++ ) 	
			{
				System.out.print((char)(alphabet + j) + " ");
			}
			System.out.println();
		}
	}
}

这个 Java 示例 使用 while 循环显示以 K 形图案排列的字母。

package Alphabets;

import java.util.Scanner;

public class kShapeAlphabets2 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter K Shape Alphabets Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing K Shape Alphabets Pattern");		
		int i = rows - 1, j, alphabet;
		
		while (i >= 0 ) 
		{
			alphabet = 65;
			j = 0 ;
			while ( j <= i) 	
			{
				System.out.print((char)(alphabet + j) + " ");
				j++;
			}
			System.out.println();
			i--;
		}
		
		i = 1 ;
		while ( i < rows ) 
		{
			alphabet = 65;
			j = 0 ;
			while ( j <= i ) 	
			{
				System.out.print((char)(alphabet + j) + " ");
				j++;
			}
			System.out.println();
			i++;
		}
	}
}

Enter K Shape Alphabets Pattern Rows = 7
Printing K Shape Alphabets Pattern
A B C D E F G 
A B C D E F 
A B C D E 
A B C D 
A B C 
A B 
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 

使用 do while 循环打印 K 形字母图案的 Java 程序。

package Alphabets;

import java.util.Scanner;

public class kShapeAlphabets3 {

	private static Scanner sc;
	
	public static void main(String[] args) {
		
		sc = new Scanner(System.in);	
		
		System.out.print("Enter K Shape Alphabets Pattern Rows = ");
		int rows = sc.nextInt();
		
		System.out.println("Printing K Shape Alphabets Pattern");		
		int i = rows - 1, j, alphabet;
		
		do 
		{
			alphabet = 65;
			j = 0 ;
			do	
			{
				System.out.print((char)(alphabet + j) + " ");

			} while ( ++j <= i);
			System.out.println();

		} while (--i >= 0 );
		
		i = 1 ;
		do
		{
			alphabet = 65;
			j = 0 ;
			do	
			{
				System.out.print((char)(alphabet + j) + " ");

			} while ( ++j <= i );
			System.out.println();

		} while ( ++i < rows );
	}
}

Enter K Shape Alphabets Pattern Rows = 10
Printing K Shape Alphabets Pattern
A B C D E F G H I J 
A B C D E F G H I 
A B C D E F G H 
A B C D E F G 
A B C D E F 
A B C D E 
A B C D 
A B C 
A B 
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 
A B C D E F G H 
A B C D E F G H I 
A B C D E F G H I J