Question

How to add value to HashSet in Java

Answer 1

import java.util.*;

public class MyClass {
    public static void main(String args[]) {
        Set<String> letters = new HashSet<>(Arrays.asList("a", "b", "c", "d", "a", "a"));
      
        letters.add("x");
        letters.add("y");
        letters.add("a");

        System.out.println(letters);
    }
}




/*
run:

[a, b, c, d, x, y]

*/

 

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