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How to find unique words and letters in a string with Java

1 Answer

0 votes
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.Collections;
import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        String s = "java php php c# php java x y x y y y python q w";
        List<String> list = Arrays.asList(s.split(" "));

        Set<String> set_without_duplicates = new HashSet<String>(list);

        for (String word : set_without_duplicates) {
            if (Collections.frequency(list, word) == 1)





answered Jun 28 by avibootz