What is the difference between constructors and other regular methods? What happens if you do not provide a constructor? Can you call one constructor from another? How do you call the superclass’s constructor?

Constructors:

Constructors must have the same name as the class name and cannot return a value. The constructors

are called only once per creation of an object while regular methods can be called many times.  

 

E.g. for a

Pet.class

public Pet() {} // constructor

 

Regular Methods:

Regular methods can have any name and can be called any number of times. E.g. for a Pet.class.

 

public void Pet(){} // regular method has a void return type.

 

Note: method name is shown starting with an uppercase to differentiate a constructor from a regular method. Better naming

convention is to have a meaningful name starting with a lowercase like:

 

public void createPet(){} // regular method has a void return type