UPDATE: This question was the subject of my blog in September 2014. Thanks for the great question! There is considerable debate on this question even within the compiler team itself. First off, it’s wise to understand the rules. A public member of a class or struct is a member that is accessible to anything that … Read more
There really is no equivalent construct in Ruby. However, it looks like you are making one of the classic porting mistakes: you have a solution in language A and try to translate that into language B, when what you really should do is figure out the problem and then figure out how to solve it … Read more
dogList is local to the method Main. What you want to do instead is to place dogList outside of that scope. public class Program { static List<Dog> dogList = new List<Dog>(); … Alternately you can send the list into your add method.
Here is a little bit detailed explanation on why main method is declared as public static void main(String[] args) Main method is the entry point of a Java program for the Java Virtual Machine(JVM). Let’s say we have a class called Sample class Sample { static void fun() { System.out.println(“Hello”); } } class Test { … Read more
Because it breaks encapsulation — this is why most people use accessors heavily. However, if you think it’s the right solution for your task, ignore it (meaning the strict encapsulation complaints) and do what’s right for your project. Don’t let the OO nazis tell you otherwise.
What I have seen someday on SO, as answer (written by @ChssPly76) why to use getters and setters Because 2 weeks (months, years) from now when you realize that your setter needs to do more than just set the value, you’ll also realize that the property has been used directly in 238 other classes 🙂 … Read more
Public: When you declare a method (function) or a property (variable) as public, those methods and properties can be accessed by: The same class that declared it. The classes that inherit the above declared class. Any foreign elements outside this class can also access those things. Example: <?php class GrandPa { public $name=”Mark Henry”; // … Read more
The official tutorial may be of some use to you. Class Package Subclass(same pkg) Subclass(diff pkg) World public + + + + + protected + + + + no modifier + + + private + + : accessible blank : not accessible