Button ActionListener results in large amount of errors and I don't know why
49
What is a NullPointerException, and how do I fix it?
116180
Adding an onclicklistener to listview (android)
64200
Can Java's NullPointerException be changed to report on which variable was null?
29317
Need to read input of two JTextfields after a button is clicked
316
How to pass arguments to addEventListener listener function?
90217
Having multiple validation functions in a class with multiple actions
137692
NullPointerException when working with arrays
41834
How do you handle multiple submit buttons in ASP.NET MVC Framework?
148462
how to make a custom listener without instantiating the class each time
98080
Android: Cannot invoke toString() on the primitive type int
20020
NullPointerException accessing views in onCreate()
131729
How do I call a specific Java method on a click/submit event of a specific button in JSP?
143664
setOnClickListener crashs my android app
113741
Using onClick attribute in layout xml causes a NoSuchMethodException in Android dialogs
46944
Null pointer Exception - findViewById()
35590
How to fix NullPointerException in Java?
289
What is a NullReferenceException, and how do I fix it?