What is a constructor in Java?

Constructors are similar to methods but,

They do not have any return type.
The name of the constructor is same as the name of the class.
Every class has a constructor. If we do not explicitly write a constructor for a class, the Java compiler builds a default constructor for that class.
Each time a new object is created, at least one constructor will be invoked.
A class can have more than one constructor.

Example

public class Puppy {
   public Puppy() {
   }
   public Puppy(String name) {
      // This constructor has one parameter, name.
   }
}

Published on 08-Feb-2018 14:19:05