Here is my situation. When developing a Java开发者_如何学JAVA application, you occasionally get a java.lang.NullPointerException. You can print the stack trace and it will tell you the class and the
I am following the Snake Java games tutorial and always get this error: ImageIcon iid = new ImageIcon(this.getClass().getResource("ball.png"));
I am trying to create Restful Webservice as a client of Message Driven Bean, But when i invoke the restful method its giving me following error when
outside onclick listener i am getting tags value but inside onclick listener i am getting null value TableRow[] tr= new TableRow[1];
Hi i have currently created a tab view in my app.. The tabs worked fine until i begin to create a gallery within one开发者_Python百科 of them. Could someone please have a look for me.. In the logcat t
I cant figure out where I\'m going wrong at all, I\'ve checked and rechecked my add(int index, T obj) method countless times, still getting the same error. Here\'s my code, any pointers would be GREAT
This is the exception I am getting: Exception in thread \"main\" java.lang.NullPointerException at BankAccountDemo.DisplayAccountFees(BankAccountDemo.java:91)
I am not sure what started this problem.I submitted it as a bug to Eclipse but they closed it, stating it is a JBoss extension problem.However, this problem doesn\'t occur in my other workspace (both
I am having some trouble with the HashMaps in my program.I have several declared at the top class like so:
I am using a ListView in Android by creating this class public class HBSListView extends ListActivity;
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