Question

Question 6
Write a program to accept a sentence and print only the first letter of each word of the
sentence in capital letters separated by a full stop.
Example:
INPUT SENTENCE:
OUTPUT:
“This is a cat”
T.I.A.C.​

Answer 1

First Letter of each Word - Java

We will take user input through Scanner. For that, we import $\texttt{java.util.Scanner}$ into the program. Then, we create a Scanner object and ask the user to input a sentence. The input is taken through the $\texttt{Scanner.nextLine()}$ method.

We name the variable where we stored the input as $\texttt{sentence}$. We now create a String type array, named $\texttt{words[]}$ by splitting the

We want to split the words through a whitespace. So, our method becomes $\texttt{sentence.split(" ")}$. The resulting split items are stored in the $\texttt{words[]}$ array.

Now, we use the $\texttt{String.toUpperCase()}$ method to convert the words to upper case and extract the first character using $\tt String. charAt(0)$.

We are now left with just printing these first characters with a fullstop.

$\rule{300}{1}$

FirstLetter.java

import java.util.Scanner;

public class FirstLetter {

   public static void main(String[] args) {

       Scanner sc = new Scanner(System.in);    //Create Scanner Object

       System.out.print("Enter a sentence: ");

       String sentence = sc.nextLine();        //Take user input of sentence

       String words[] = sentence.split(" ");   //Split sentence into an array of words

       for(int i=0; i<words.length; i++) {

           //Convert each word to upper case and extract first character

           char firstLetter = words[i].toUpperCase(). charAt(0);

           

           //Print each letter and a fullstop

           System.out.print(firstLetter+".");

       }

   }

}

Answer 2

Answer:

A program to accept a sentence and print only the first letter of each word of the sentence in capital letters separated by a full stop in JAVA is as follows:

import java . io . *;

class ini

{

         public static void main ( ) throws IOException

         {

              BufferedReader br=new BufferedReader(new InputStreamReader  (System.in));

              String a;

              char y;

              int d;

              System.out.print(" Please enter any sentence : ");

              a=br . readLine( );

              a=" "+a;

              a=a . toUpperCase( );

              d=a . length();

              System. out. print("Output is = ");

              for(int i=0; i<l ;i++)

              {

                      x=a. charAt ( i );

                      if(x==' ')

                      System. out. print(a. charAt(i+1)+" . ");

               }

      }

}