SGF Education - JAVA - Constrtuctor.mp4

SGF Education - JAVA - Constrtuctor

Constructor in Java is block of code which is executed at the time of Object creation. But other than getting called, Constructor is entirely different than methods and has some specific properties like name of constructor must be same as name of Class. Constructor also can not have any return type, constructor’s are automatically chained by using this keyword and super. Since Constructor is used to create object, object initialization code is normally hosted in Constructor. Similar to method you can also overload constructor in Java. In this Java tutorial we will some important points about constructor in Java which is worth remembering for any Java programmer. It’s also worth remember that any static initializer block is executed before constructor because they are executed when class is loaded into memory while constructors are executed when you create instance of any object e.g. using new() keyword.
First and most important rule of declaring constructor is that name of constructor in Java must be exactly same with the class on which you declare constructor, if it doesn't then compiler will flag as error. A class in Java can have as many constructor as it and that is called constructor overloading in Java but signature of two constructor must not be same