Would it be more optimal for me to just copy and paste the two lines in my clear() method into the constructor instead of calling the actual method? The compiler can perform that optimization. And... Read More
'.'.join() or ".".join().. So any string instance has the method join()... Read More
That's correct. You can find more about it in the Oracle guide on varargs. Here's an example: void foo(String... args) { for (String arg : args) { System.out.println(arg); } } which... Read More
You can do what you described by having a final field in your abstract class that is initialised in its constructor (untested code): abstract class Base { final String errMsg; Base(String m... Read More
call is used when you want to control the scope that will be used in the function called. You might want the this keyword to be something else than the scope you assigned the function to, in those ca... Read More
From the Python PEP 8 -- Style Guide for Python Code: Descriptive: Naming Styles The following special forms using leading or trailing underscores are recognized (these can generally be combined wit... Read More
Overriding basically supports late binding. Therefore, it's decided at run time which method will be called. It is for non-static methods. Hiding is for all other members (static methods, instance me... Read More
This quote from 8.4.3.2 may help: A method that is declared static is called a class method. A method that is not declared static is called an instance method [...]. Class methods: associated with... Read More
In Python, methods are just key-value pairs in the dictionary attached to the class. When you are deriving a class from a base class, you are essentially saying that method name will be looked into f... Read More
As a formal method parameter is a local variable, you can access them from inner anonymous classes only if they are declared as final. This saves you from declaring another local final variable in t... Read More