java - strange copy values from one array to another

When I watched code examples in Java, I saw a strange code:

public class Application {
     public static void main(String[] args) {
          String[] x = {"A"};
          String[] y = x;
          x[0] = "B";
          System.out.print(x[0] + " " + y[0]);
     }
}

And I don't understand, why the result "B B" is correct? When I created and initialized an arrays x and y and assigned zero element of array x is equal to B, I think that an answer must be "B A".