Java Program to find number of distinct words are there in a given sentence.....

import java.util.*;

public class Que2 {

public static void main(String args[])

{int count=1;

Scanner sc=new Scanner(System.in);

System.out.println("enter String ");

String s1=sc.nextLine();

StringTokenizer t=new StringTokenizer(s1);

HashSet h1=new HashSet();

for(int i=0;i<s1.length();i++)

{

h1.add(s1);

if(s1.charAt(i)==' ')

{

count++;

}

}

System.out.println(h1);

System.out.println(count);

}

}