java program to print unique words in a sentence
import java.util.Arrays;
import java.util.HashSet;
/**
* Java Program - Find Unique Words
*/
public class Example {
public static void main(String[] args) {
String str = "apple banana mango grape lichi mango apple grape";
String[] words = str.split(" ");
HashSet<String> uniqueWords = new HashSet<String>(Arrays.asList(words));
for(String s:uniqueWords)
int i=1;
System.out.println(i+". "+s);
}
}