BlueJ Program To Count Frequency Of A Word In A Sentence. Input The Sentence And A Word

In this BlueJ Program user will enter a sentence and a word. BlueJ Program will count the number of occurrences of the word in the sentence, means the frequency of the word in the sentence.

The sentence must be terminated with a full stop (.)

Sample Input:

Enter any sentence: This is my India and India is heaven for me.

Enter any Word: India

Frequency of the searched word: 2

import java.util.*;

class Search

{

    String str1,str2,str;

    Scanner sc=new Scanner(System.in);

public void assign()

{    

System.out.print("\nEnter any sentence:");

str1=sc.nextLine();

System.out.print("\nEnter any Word:");

str2=sc.nextLine();

}

public void display()

{

    int len;

    int c=0;

    len=str1.length();

    if(str1.charAt(len-1)!='.')

    {

         System.out.println("Not followed the rule...");

         return;

    }

    str1=str1.substring(0,len-1);

    str1=str1 + " ";

     while(true)

     {

         int i=str1.indexOf(' ');

         if(i< 0)

         break;

         str=str1.substring(0,i);

         str1=str1.substring(i+1);

         if(str.equals(str2))

         c++;

      }

   

    System.out.print("\nFrequency of the word = " + c);

  

}

    public static void main(String args[])

    {

        Search ob=new Search();

        ob.assign();

        ob.display();

   }

 }

Related Post: BlueJ Programs on String/Sentence