Print the characters in String not repeated.

PrintDiffChar.Java

package javaproblems;

import java.util.Scanner;

public class PrintDiffChar {
    public static void main(String[] args) {
      String text;
      int count;
      char ch;
       
      Scanner SC=new Scanner(System.in);        
      System.out.println("Type your words : ");
      text = SC.nextLine();
      //converting string into upper case
      text = text.toUpperCase();
       
      count = 0;
      System.out.println("Following characters are used in the input text ");
      for ( ch = 'A'; ch <= 'Z'; ch++ ) {
          int i;  //character index in string
          for ( i = 0; i < text.length(); i++ ) {
              if ( ch == text.charAt(i) ) {
                  System.out.print(ch + " ");
                  count++;
                  break;
              }
          }
      }
      System.out.println("\nTotal number of different characters are " + count);
   }
}