
function - Purpose of a constructor in Java? - Stack Overflow
Nov 13, 2013 · A constructor is used to create an instance of the class Card. And you'll need to call it 52 times to have 52 cards: new Card(1, "hearts"), etc. Now each instance of Player (you …
Java default constructor - Stack Overflow
Dec 20, 2010 · Java provides a default constructor which takes no arguments and performs no special actions or initializations, when no explicit constructors are provided. The only action …
java - Should I initialize variable within constructor or outside ...
Instead of defining and calling a private constructor from all other constructors, you could also define an instance initializer, which will automatically be called before every constructor. That …
class - Java :Setter Getter and constructor - Stack Overflow
Jul 30, 2013 · The constructor is used to initialize the values at the time of object creation. For example the default value of the int is 0. If you want to create a instance with the value of int …
java - Why default constructor is required in a parent class if it has ...
My understanding is that the default constructor is an implicit parameterless constructor. It is only automatically added to a class when no other constructors exist. This would indicate an …
java - Why do this () and super () have to be the first statement in …
Jul 23, 2009 · The parent class' constructor needs to be called before the subclass' constructor. This will ensure that if you call any methods on the parent class in your constructor, the parent …
java - Can a class have no constructor? - Stack Overflow
Dec 8, 2012 · Java does not actually require an explicit constructor in the class description. If you do not include a constructor, then the Java compiler will create a default constructor with an …
java - Why call super () in a constructor? - Stack Overflow
May 9, 2012 · 165 There is an implicit call to super() with no arguments for all classes that have a parent - which is every user defined class in Java - so calling it explicitly is usually not …
Do I really need to define default constructor in java?
Jan 10, 2017 · A default (no-argument) constructor is automatically created only when you do not define any constructor yourself. If you need two constructors, one with arguments and one …
Difference between a no-arg constructor and a default constructor …
Dec 26, 2014 · The default constructor is a constructor that the Java compiler adds to your code if no explicit constructor is available. The default constructor invokes the super class constructor …