Checking null for multiple strings in Java

How can one check for whether one of the strings is not null, only if the rest contain something? Here is an example of how it works, but I feel like there should be a better way to do it. if ((…

Best instructions for null scenario in String approach [closed]

I want to hear opinions and arguments on this topic, I’m pretty undecided. The equals method is the best one for value equality/testing? if (“text”.equals(testString))

Firebase Datasnapshot returns null value

I want to retrieve this value from this node (“id”), and the value i get is null. I have googled so many solutions that this might have to do with asynchronous way or something, i guess? This is the …

How to avoid NullPointerException from arithmetic operators in Java?

Given the following: Integer var1 = null; Integer var2 = 4; Integer result = var1 + var2; // throws NullPointerException The requirement for my use case is that result should be null whenever either …