ProgramingLanguagesComparison.md

Features	Java	Scala	Python	Golang	C++
Type Inference	No	Yes	Yes	Yes	No
Function	Must be in class	Must be in class or object. Function is first-class object	Can be at anywhere. Function is object	Always outside struct. Function is object	Can be at any where
Optional parameters	No	Yes	Yes	No	No
Tuple	No	Full-features include unpack	Full-features include unpack	No	No
Multiple return values	No	Support via tuple, must pack/unpack manually	Support auto pack/unpack via tuple	Support but return value is not first-class object like tuple in Scala/Python	No
Class	Support	Support	Missing scope-limit feature (private/protected), final method	Do not have class, only have term struct, support ony some basic features when extends struct (updating...)	Support
Class constructor	Standard OOP	Constructor is in the class signature, contructor overload via optional parameters	Contructor is init(self) method, support overload via optional parameters	No, use function return reference to a struct	Standard OOP
Interface	Interface support default methods	Trait supprt default methods and default fields	Support via multiple interitance but isn't necessary because Python is dynamic language	Support OOP standard, can be used to define anonymous struct	Support via multiple interitance classes
Method/function overloading	Yes	Yes	Yes, via optional parameters	No	Yes
Operator overloading	No	Support	Support	No	Support
Generic	Yes	Yes	Not necessary	No	Yes
Exception	Try/catch/finally	Try/catch/finally	Try/except/finally	No, return error instead	Try/catch
Concurrency	Support native-thread	Support Java-thread but recommend use Actor model and functional programing style	Support native thread, support async-await model	Support via goroutine	Support native thread
Advanced features		Case-class, Pattern matching, Actor-based model	Dynamic-langue	Goroutine	Memory management by hand