"Incorrect keyboard"-Skillrack

Incorrect Keyboard

              

Suman's keyboard got damaged as he dropped it from a considerable distance. As a result instead of K the keyboard may sometimes display T (but will never display K instead of T)Similarly instead of G, the keyboard may sometimes display D, instead of R sometimes it may display L and sometimes instead of R it displays F.
Because of this Suman has to think of all possible words for a displayed word (by typing using his keyboard).
The program to be written should accept a word W which is displayed as a result of typing on Suman's keyboard and should calculate how many possible words it could mean (if typed using a properly working keyboard) and type the count as the output.

Boundary Conditions:The length of the input word is between 2 and 100.

Input Format:
First line will contain the word W.

Output Format:
The count of possible words that the input word (typed using Suman's keyboard) could mean.

Sample Input/Output:
Example 1:
Input:
FILIPEK
Output:
4
Explanation:
The words that may be wrongly typed are F and L. Here F could be correctly typed or wrongly typed instead of R. Similarly L could be correctly typed or wrongly typed instead of R.Hence the overall words to be considered are 2*2 = 4.Note: K is not considered as K will not be typed instead of some other letter. Only instead of K sometimes T will be typed.

Example 2:
Input:KICKED
Output:2
Explanation:
L could be correctly typed or wrongly typed instead of R. Hence overall words to be considered = 2.

Example 3:
Input:FUTILE
Output:8
Explanation:F,T,L - These three letters can be wrongly typed instead of R,K,R or can be correctly typed. Hence overall words to be considered = 2*2*2 = 8.
*/

Code:

import java.util.*;
import java.util.Scanner;
import java.lang.*;
import java.io.*;


class yogesh
{
public static void main (String[] args) throws java.lang.Exception
{   
    int sum=1;
    Scanner sc=new Scanner(System.in);
        String str=sc.nextLine();
             for(int i=0;i<str.length();i++) 
             {
            if(str.charAt(i)=='T'||str.charAt(i)=='D'||str.charAt(i)=='L'||str.charAt(i)=='F'){
                sum*=2;
            }
         }
             System.out.println(sum);
            
}

}

ForMore: https://github.com/tsyogesh40/C_solved-apps