Java Constructor is a code of blocks in java like methods. It is called when an object instance is created, and memory is allocated for the object. We can say Constructor is a particular type of method by which we can initialize the object of the class. It constructs the values at the time of a creation of an object that’s why is it called the Constructor. It is not mandatory to create the constructor for a class. Because the compile-time constructor is created by default if there is no constructor in the class.

Java Constructor Tutorial

Every time an object is created using the new() keyword, at least one constructor is called. It calls a default constructor. It is called the constructor because it constructs the values at a time of the object creation.

It is not necessary to write a constructor for the class. It is because java compiler creates a by default constructor if your class doesn’t have any constructor.

A constructor is a special method that is used to initialize a newly created object and is called just after the memory is allocated for the object. It can be used to initialize the objects to desired values or default values at the time of object creation.

The constructor has the same name as the class and looks like this in java code.

public class Acme {

   //This is the constructor
   Acme(){

   }
   ..
}

One thing to note that the constructor name matches the class name and it doesn’t have a return type.

#java #java constructor