001package algs12; 002import stdlib.*; 003import java.util.*; 004public class Hello { 005 public static void main (String[] args) { 006 Trace.showBuiltInObjects (true); 007 Trace.run (); 008 int[] x = new int[] { 11, 21, 31 }; 009 int[] y = new int[] { 11, 21, 31 }; 010 Trace.draw (); 011 StdOut.println ("x=" + x + ", y=" + y); 012 StdOut.println ("x=" + Arrays.toString(x) + ", y=" + Arrays.toString(y)); 013 StdOut.println (" x==y : " + (x == y)); 014 StdOut.println (" Objects.equals(x,y) : " + (Objects.equals(x,y))); 015 StdOut.println (" x.equals(y) : " + (x.equals(y))); 016 StdOut.println (" Arrays.equals(x,y) : " + (Arrays.equals(x,y))); 017 } 018}