Scala
- It is a combination of functional and object oriented programming.
- It is not very user-friendly, i.e. not readable.
- Conversion from source code to byte code is slower.
- It supports lazy evaluation.
- The variables in Scala are immutable by default.
- There is no keyword called ‘static’ in Scala.
- All operations in Scala are done with the help of function/method calls.
- It is more towards the object-oriented side since Scala treats everything like an object.
- Functions written in Scala are treated like simple variables.
- Scala supports operator overloading.
Java
- Java is considered to be a general purpose object oriented programming language.
- It is much user-friendly, since the code is readable.
- Conversion from source code to byte code is comparatively quick.
- Java doesn’t support lazy evaluation.
- The variables in Java are mutable by default.
- The keyword ‘static’ is used in Java to share a single copy of the variable over the entire
code.
- Operators in Java are treated differently, and it is not necessary to use method calls.
- Java is less object oriented since there are primitive data format.
- Functions in Java are treated as objects.
- Java doesn’t support operator overloading.