the constructor has exactly the same effect whether they are included or not.And then using object ‘emp’ created, invokes member method display () which prints the message inside method. Employee emp new Employee () Which invokes default no-arg constructor and prints the message inside constructor. the question got the defaults wrong, and Here in this example, Employee object is created using below line of code.However, I am leaving it the answer because In Java (and this question is tagged Java), the default constructor is one that is supplied for you by the compiler, if you dont specify any constructors. Technically it is not the constructor (default or otherwise) that default-initialises the fields. If a class contains no constructor declarations, then a default constructor with no formal parameters and no throws clause is implicitly declared. A constructor is a special type of method that initializes data members of the class and instantiates the object. However, if you define at least one constructor, the default constructor is not generated. Learn how to implement default or no-argument constructor in Java Submitted by Nidhi, on MaProblem Solution: In this program, we will create a Sample class and implement a default or no-argument constructor. For your example, it would look like this assuming that the types are String, int and int, and that the class itself is public: public Module ()Īnd exactly the same as having no constructors at all. Any uninitialised fields will be set to their default values. The default constructor is the no-argument constructor automatically generated unless you define another constructor.
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