Question

Sort letters in word in ascending order and print missing letters in the word

Enter the word:
DELHI
Original Word:DELHI
Sorted Word:DEHIL
Missing Letter:FGJK

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Code

import java.util.Scanner;
public class SortAndPrintMissingLetters
{
    public static void main()
    {
        int i,len=0,j=0;
        String wd="",newWd="",missingLetters="";
        char ch= ' ',ch1=' ',temp=' ';
        char characters[];
        char startPosition=' ',endPosition=' ';
        boolean characterFound=false;
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter the word:");
        wd=sc.next();
        len=wd.length();
        wd=wd.toUpperCase();
        characters=new char[len];
        for(i=0;i< len;i++)
        {
            characters[i]=wd.charAt(i);

        }
        for(i=0;i< len;i++)
        {
            for(j=0;j< len;j++)
            {
                if(characters[i]< characters[j])
                {
                    temp=characters[i];
                    characters[i]=characters[j];
                    characters[j]=temp;
                }
            }
        }
        for(i=0;i< len;i++)
        {
            newWd=newWd+characters[i];

        }
        System.out.println("Original Word:"+wd);
        System.out.println("Sorted Word:"+newWd);
        startPosition=newWd.charAt(0);
        endPosition=newWd.charAt(len-1);

        for(ch=startPosition;ch<=endPosition;ch++)
        {
            characterFound=false;
            for(i=0;i< len;i++)
            {
                ch1=newWd.charAt(i);
                if(ch==ch1)
                {
                    characterFound=true;
                    break;
                }
            }
            if(characterFound==false)
            {
                missingLetters=missingLetters+ch;
            }
        }
        System.out.println("Missing Letter:"+missingLetters);
    }
}