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- เผยแพร่เมื่อ 8 ก.ย. 2024
- Usually we use if statement combined with == or != operators to check if an object reference is null or not. We do this to validate arguments passed to constructors or methods doesn’t contain a null value.
The solution is to use the java.util.Objects class. This static utility class provides methods like requireNonNull() to check if the specified object reference is not null. If null it will throw a NullPointerException.
#javaprogramming #javatutorial #javatutorialforbeginners
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I was expecting something interesting from the title of the video. But the topic tells about how to validate method parameter with help of Java util. java.util.Objects#requireNonNull(T) is just a utility method introduced in Java 7 which replaces boilerplate code nothing new. Looking forward for something interesting topics...
sure prabhat .... will keep that in mind for further videos
I am getting null object reference error how to fix
put a null condition before using that object
I have linked the button with my layout initialized it with null it is not in any other layout still getting error
indi mein bol deta
Unfortunately we can't, because this channel is for english audience. But may be soon we start hindi channel as well. will let you know then!