Question

How to initialize a HashSet from an array in Java

Answer 1

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;

public class MyClass {
    public static void main(String args[]) {
        String[] arr = { "java", "c", "c++", "c#", "python" };

        HashSet<String> hset = new HashSet<>(Arrays.asList(arr));
        
        System.out.println(hset);
    }
}




/*
run:
   
[c#, c++, python, java, c]
 
*/

 

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