src/java.desktop/share/classes/java/awt/DisplayMode.java

*** 1,7 ****
  /*
!  * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
--- 1,7 ----
  /*
!  * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
*** 140,149 ****
--- 140,150 ----
      }
  
      /**
       * {@inheritDoc}
       */
+     @Override
      public boolean equals(Object dm) {
          if (dm instanceof DisplayMode) {
              return equals((DisplayMode)dm);
          } else {
              return false;
*** 151,161 ****
--- 152,172 ----
      }
  
      /**
       * {@inheritDoc}
       */
+     @Override
      public int hashCode() {
          return getWidth() + getHeight() + getBitDepth() * 7
              + getRefreshRate() * 13;
      }
  
+     /**
+      * {@inheritDoc}
+      */
+     @Override
+     public String toString() {
+         return getWidth() + "x" + getHeight() +
+                (getBitDepth() > 0 ? "x" + getBitDepth() + "bpp": "")
+                + "@" + getRefreshRate() + "Hz";
+     }
  }