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  1. import java.util.*; // For using Scanner class for input
  2.  
  3. public class Main {
  4.     public static void main(String[] args) {
  5.  
  6.         Scanner key = new Scanner( System.in );
  7.  
  8.         System.out.println(" Please enter a single letter:");
  9.  
  10.         char input = key.next().charAt(0);
  11.         input = Character.toUpperCase( input);
  12.  
  13.         char middle = 'A'; int spaces = input - (int) 'A';
  14.         while( ( middle <= input)) {
  15.             for( int i = 0; i < spaces; i++)
  16.                 System.out.print(" ");
  17.  
  18.             for( char y = 'A'; y <= middle; y++)
  19.                 System.out.print( y);
  20.  
  21.             for( char y = Character.toChars( middle - 1)[0]; y >= 'A'; y--)
  22.                 System.out.print( y);
  23.  
  24.             for (int i = 0; i < spaces; i++)
  25.                 System.out.print(" ");
  26.  
  27.             System.out.println();
  28.  
  29.             spaces--; middle++;
  30.         }        
  31.     }
  32. }
Success #stdin #stdout 0.06s 246080KB
comments (?)
stdin
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F
stdout
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 Please enter a single letter:
     A     
    ABA    
   ABCBA   
  ABCDCBA  
 ABCDEDCBA 
ABCDEFEDCBA
https://ideone.com/0i1iS
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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