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Hey Mayur, constructors in Java is a block of code which is called when an instance of an object is created ( Car car = new Car(); ). The "Car();" calls the constructor. Here are the key differences between a constructor and a method:
-A constructor doesn’t have a return type.
-The name of the constructor must be the same as the name of the class.
-Unlike methods, constructors are not considered members of a class.
-A constructor is called automatically when a new instance of an object is created.
Constructors are mostly used to initialize the variables of a class, without using an extra setter-method.