src/demo/share/jfc/SwingSet2/ExampleFileView.java

@@ -57,13 +57,13 @@
  *    chooser.setFileView(fileView);
  *
  * @author Jeff Dinkins
  */
 public class ExampleFileView extends FileView {
-    private Hashtable icons = new Hashtable(5);
-    private Hashtable fileDescriptions = new Hashtable(5);
-    private Hashtable typeDescriptions = new Hashtable(5);
+    private Hashtable<String, Icon> icons = new Hashtable<>(5);
+    private Hashtable<File, String> fileDescriptions = new Hashtable<>(5);
+    private Hashtable<String, String> typeDescriptions = new Hashtable<>(5);
 
     /**
      * The name of the file.  Do nothing special here. Let
      * the system file view handle this.
      * @see FileView#getName

@@ -83,11 +83,11 @@
      * A human readable description of the file.
      *
      * @see FileView#getDescription
      */
     public String getDescription(File f) {
-        return (String) fileDescriptions.get(f);
+        return fileDescriptions.get(f);
     };
 
     /**
      * Adds a human readable type description for files. Based on "dot"
      * extension strings, e.g: ".gif". Case is ignored.

@@ -109,11 +109,11 @@
      * A human readable description of the type of the file.
      *
      * @see FileView#getTypeDescription
      */
     public String getTypeDescription(File f) {
-        return (String) typeDescriptions.get(getExtension(f));
+        return typeDescriptions.get(getExtension(f));
     }
 
     /**
      * Convenience method that returns the "dot" extension for the
      * given file.

@@ -147,11 +147,11 @@
      */
     public Icon getIcon(File f) {
         Icon icon = null;
         String extension = getExtension(f);
         if(extension != null) {
-            icon = (Icon) icons.get(extension);
+            icon = icons.get(extension);
         }
         return icon;
     }
 
     /**