Frequency Of An Entered Word In A Sentence

This is a BlueJ program to count the frequency of a particular word from a sentence.

              Write a program to enter a sentence from user and a word. Display the frequency of the word in the sentence

    

import java.io.*;

class Sentence

{

int i,c=0;

String sentence,s1,word[]=new String[20];

int x=0;

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

public void disp()throws Exception

{

System.out.println("Enter the sentence:");

sentence=br.readLine().trim()+" ";

System.out.println("Enter the Word:");

s1=br.readLine().trim();

while(true)

{

i=sentence.indexOf(' ');

if(i< 0)

break;

word[x++]=sentence.substring(0,i);

sentence=sentence.substring(i+1);

}

for(i=0;i<=x-1;i++)

{

if(word[i].equals(s1))

 c++;

}

System.out.println(s1+ " frequence="+c);

}

public static void main(String args[])throws Exception

{

Sentence ob=new Sentence();

ob.disp();

}

}

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