Why is constructor not a method?

Why is constructor not a method?

Constructors in Java – A complete study!! Constructor is a block of code that initializes the newly created object. A constructor resembles an instance method in java but it’s not a method as it doesn’t have a return type. Note that the constructor name matches with the class name and it doesn’t have a return type.

Can you call a constructor in a method?

No, you cannot call a constructor from a method. The only place from which you can invoke constructors using “this()” or, “super()” is the first line of another constructor. If you try to invoke constructors explicitly elsewhere, a compile time error will be generated.

Why constructor is a special method?

In other words, a constructor is a special type of method that is used to initialize instance variables in a class. The sole purpose of the constructor is to initialize the data fields of objects in the class. It is invoked when an instance of a class is created using the new operator.

Which method is used as constructor?

Difference between constructor and method in Java

Can constructor be declared private?

Yes. Class can have private constructor. Even abstract class can have private constructor. By making constructor private, we prevent the class from being instantiated as well as subclassing of that class.

Why do we use constructors?

We use constructors to initialize the object with the default or initial state. The default values for primitives may not be what are you looking for. Another reason to use constructor is that it informs about dependencies.

Can constructor be declared as final?

No Constructors can NEVER be declared as final. Your compiler will always give an error of the type “modifier final not allowed” Final, when applied to methods, means that the method cannot be overridden in a subclass.