java控制语句输出java输出用字母顺序输出的八行菱形

代码如下

import java.util.Scanner;
public class Test {

    public static void main(String[] args) {
        char a=65;
        Scanner scan = new Scanner(System.in);
        System.out.println("请输入想要生成菱形的行数");
        int number = scan.nextInt();
        if(number == 0) {
            System.out.println("输入的值是0，无法输出图形");
        }else if (number > 9) {
            System.out.println("超出26个字母的长度，请输入小于10行的行数");
        }  else if(number % 2 == 0 && number != 0)
        {
            // 上半部分
            for(int i = 1 ;i <= (number/2) ;i++) {
                for(int j = 1 ; j <= (number/2)-i ;j++) {
                    System.out.print(" ");
                }
                for(int k = 1; k <= i ;k++) {
                    System.out.print(a+" ");
                    a++;
                }
                System.out.println();
            }
            //下半部分
            for(int i = 1 ;i <= (number/2) ; i++) {
                for(int j = 1 ;j <= i-1 ;j++) {
                    System.out.print(" ");
                }
                for(int k = 0; k <= (number/2)-i;k++) {
                    System.out.print(a+" ");
                    a++;
                }
                System.out.println();
            }

        }else {
            //上半部分
            for(int i = 1; i <= (number/2)+1; i++) {
                for(int j = 0;j <= (number/2)-i ; j++) {
                    System.out.print(" ");
                }
                for(int k = 1; k <= i ;k++) {
                    System.out.print(a+" ");
                    a++;
                }
                System.out.println();
            }
            //下半部分
            for(int i = 1 ;i <= (number/2);i++) {
                for(int k = 1;k <= i ;k++) {
                    System.out.print(" ");
                }
                for(int j = 0; j <= (number/2)-i ; j++) {
                    System.out.print(a+" ");
                    a++;
                }

                System.out.println();
            }
        }
    }
}

测试结果如下