package algs12;
import stdlib.*;
import java.util.*;
public class Hello {
  public static void main (String[] args) {
    Trace.showBuiltInObjects (true);
    Trace.run ();   
    int[] x = new int[] { 11, 21, 31 };
    int[] y = new int[] { 11, 21, 31 };
    Trace.draw ();
    StdOut.println ("x=" + x + ", y=" + y);
    StdOut.println ("x=" + Arrays.toString(x) + ", y=" + Arrays.toString(y));
    StdOut.println ("                  x==y : " + (x == y));
    StdOut.println ("   Objects.equals(x,y) : " + (Objects.equals(x,y)));
    StdOut.println ("           x.equals(y) : " + (x.equals(y)));
    StdOut.println ("    Arrays.equals(x,y) : " + (Arrays.equals(x,y)));
  }
}