> One particular problem I remember was a type difference issue. They had a string and needed to compare it with a string in an object. Easy, just do something like myObj.myVar == "string" right? But autocomplete suggested myObj.equals("string") instead. This is java code. Then I had to explain why it didn't work as intended even though the code compiled.

Actually, you need to use `.equals()` for value equality on reference types in Java (like Strings). Using `==` will give you reference equality, which is almost never what you want. You probably wanted `myObj.myVar.equals("string")`