When I try to run DonnaApplet, the appletviewer screen comes up and I'm able to feed in the name and numbers but when I click Submit Scores I get this error message: A:\>appletviewer DonnaApplet.html Exception occurred during event dispatching: java.lang.NumberFormatException: at java.lang.Integer.parseInt(Compiled Code) at java.lang.Integer.parseInt(Integer.java:458) at DonnaApplet.actionPerformed(DonnaApplet.java:126) at java.awt.AWTEventMulticaster.actionPerformed(AWTEventMulticaster.java :351) at java.awt.Button.processActionEvent(Button.java:308) at java.awt.Button.processEvent(Button.java:281) at java.awt.Component.dispatchEventImpl(Compiled Code) at java.awt.Component.dispatchEvent(Compiled Code) at java.awt.EventQueue.dispatchEvent(Compiled Code) at java.awt.EventDispatchThread.run(EventDispatchThread.java:68) Here's my code:
[This message has been edited by Cindy Glass (edited December 03, 2001).]
posted 14 years ago
In your init() method you do this line twice: submitButton.addActionListener(this); The second one should be displayButton.addActionListener(this); You still need to put error checking in for the rank textfield in case a non number is entered in or nothing at all. What is currently happening is the action listers actionPerformed() is being fired twice for every click. The second time in the textfield contains nothing so you get the exception. Which is why you need to put in error checking.