changed I/O to JOptionPane

testJOptionPane2.java

@@ -0,0 +1,116 @@
+/**
+ * @(#)testJOptionPane.java
+ *
+ * @author Horton
+ * @version 1.00 2012/5/15
+ */
+import javax.swing.JOptionPane;
+
+public class testJOptionPane2 {
+
+  /**
+   * @param args the command line arguments
+   */
+  public static void main(String[] args) {
+    // ## creates a loop to display the main menu
+    boolean done = false;
+
+    while (!done) {
+      String menu =
+          "1 - load file"
+              + "\n"
+              + "2 - add something "
+              + "\n"
+              + "3 - save file "
+              + "\n"
+              + "4- quit";
+      String inputValue = JOptionPane.showInputDialog(menu);
+      int n = Integer.parseInt(inputValue);
+      switch (n) {
+        case 1:
+          loadFile(); // Read data from file
+          break;
+        case 2:
+          doSomething();
+          break;
+        case 3:
+          JOptionPane.showMessageDialog(null, "user instructions here ");
+          break;
+        case 4:
+          done = true;
+          break;
+        default:
+          JOptionPane.showMessageDialog(null, "invalid option, please try again ");
+      }
+    }
+
+    // JOptionPane.showMessageDialog(null,"You Chose " + inputValue);
+
+    // *********************************************************************
+    // Custom button text -- returns 0 for the first button
+    Object[] options = {"Yes, please", "No, thanks", "No eggs, no ham!"};
+    int n =
+        JOptionPane.showOptionDialog(
+            null,
+            "Would you like some green eggs to go " + "with that ham?",
+            "A Silly Question",
+            JOptionPane.YES_NO_CANCEL_OPTION,
+            JOptionPane.QUESTION_MESSAGE,
+            null,
+            options,
+            options[2]);
+    // ## do not include the following line.  It is to help determine what the switch should do
+    JOptionPane.showMessageDialog(null, "You Chose " + n);
+
+    // ****************************************************************
+    // pull down menu
+    // --NOTE: this would be a good place to call a method in your list class to get an array of
+    // objects to display such as all the names of the teams or products in your list.
+
+    Object[] possibilities = {"ham", "spam", "yam"};
+    String s =
+        (String)
+            JOptionPane.showInputDialog(
+                null,
+                "Complete the sentence:\n" + "\"Green eggs and...\"",
+                "Customized Dialog",
+                JOptionPane.PLAIN_MESSAGE,
+                null, // icon if you have one
+                possibilities,
+                "ham");
+  }
+
+  public static void doSomething() {
+    // ## this method is just to show displaying
+    // ## a different menu.  You would need to
+    // ## add a switch to handle menu options
+    // ## when option 4 is selected,the loop/method will end
+    // ## and processing can return to the menu that called this
+
+    boolean editMore = true;
+    while (editMore) {
+      String menu =
+          "1 - show all data"
+              + "\n"
+              + "2 - show only one thing "
+              + "\n"
+              + "3 - save file "
+              + "\n"
+              + "4 - done editing ";
+      String inputValue = JOptionPane.showInputDialog(menu);
+      // out write a switch to evaluate the options -- following if would be in your switch
+      if (inputValue.equals("4")) editMore = false;
+    }
+  }
+
+  public static void loadFile() {
+    // loop, read data for one record, construct object of that class, add to the appropriate list
+    /**
+     * Scanner saved; try { saved = new Scanner (new File("itemList.dat")); while(saved.hasNext()) {
+     * itemName = saved.nextLine(); itemPrice = saved.nextDouble(); itemQuantity = saved.nextInt();
+     * saved.nextLine(); //cleans out end of line myCart.addItem(new ItemKEY(itemName, itemPrice,
+     * itemQuantity)); } //end of while block to read } // end of try block catch (IOException e) {
+     * System.out.println ("input read failed " + e); }
+     */
+  }
+}