Don't Pass & Return Null ❌

Returning null from methods is bad, but passing null into methods is worse.

Unless you are working with an API which expects you to pass null, you should avoid passing null in
your code whenever possible.

#CleanCode #Exception #Null

📦 Grab The Stack Trace Of An Exception 📦

Checking your code for errors is one of the most Painstaking – and frustrating – parts of the development process. 🙆🏻‍♂️

It’s also horrendously Time-Consuming, particularly if you’ve a pesky error whose source isn’t immediately clear. 💡

Using this code, you can more easily track down where an Exception is occurring – and bring yourself that much closer to being rid of it. ✅

Code

Exception e = …;
java.io.StringWriter sw = new java.io.StringWriter();
e.printStackTrace(new java.io.PrintWriter(sw));
String trace = sw.getBuffer().toString();

#java #exception #error #trick
@ProgrammingTip