Exception in thread main java.lang.nullpointerexception lỗi năm 2024
The Show Since the Why NullPointerException Occurs in JavaThe Some of the most common scenarios for a
NullPointerException ExampleHere is an example of a
0 object is called:
In this example, the
1 method calls the
3 method is null, running the above code causes a
How to Fix NullPointerExceptionTo fix the
The code is updated with a check in the
1 method that makes sure the string is not empty using the apache commons
7 method. Only if the string is not empty the
9 to console. How to Avoid NullPointerExceptionThe
Track, Analyze and Manage Java Errors With RollbarManaging errors and exceptions in your code is challenging. It can make deploying production code an unnerving experience. Being able to track, analyze, and manage errors in real-time can help you to proceed with more confidence. Rollbar automates Java error monitoring and triaging, making fixing errors easier than ever. Try it today! |