Importing Arrays

Can anyone explain the main method from this below exercise. Didn't understand

// import the Arrays package here:
import java.util.Arrays;
public class Newsfeed {
  
  
  public Newsfeed(){
    
  }
    
  public String[] getTopics(){
    String[] topics = {"Opinion", "Tech", "Science", "Health"};
    return topics;
  }
  

  public static void main(String[] args){
    Newsfeed sampleFeed = new Newsfeed();
    String[] topics = sampleFeed.getTopics();
    System.out.println(Arrays.toString(topics));
  }
}

O/P: [Opinion, Tech, Science, Health]