Question

How to convert a String[] to a Set in Java

Answer 1

import java.util.HashSet;
import java.util.Arrays;
import java.util.List;
import java.util.Set;

public class MyClass {
    public static void main(String args[]) {
        String[] array = {"java", "c", "c", "java", "c#", "python", "c#", "c"};
        
        List<String> list = Arrays.asList(array);
        
        Set<String> set = new HashSet<>(list);
        
        System.out.println(set);  
    }
}
 
 
 
 
 
/*
run:
   
[c#, python, java, c]
  
*/

 

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Answer 2

import java.util.TreeSet;
import java.util.Arrays;
import java.util.List;
import java.util.Set;

public class MyClass {
    public static void main(String args[]) {
        String[] array = {"java", "c", "c", "java", "c#", "python", "c#", "c"};
        
        List<String> list = Arrays.asList(array);
        
        Set<String> set = new TreeSet<>(list);
        
        System.out.println(set);  
    }
}
 
 
 
 
 
/*
run:
   
[c, c#, java, python]
  
*/

 

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