JavaScript optional parameter

Summary

Summary

Constructors don’t have return type. A constructor is automatically called when an object is created. It must be placed in public section of class . If we do not specify a constructor, C++ compiler generates a default constructor for object (expects no parameters and has an empty body).

Constructors don’t have return type. A constructor is automatically called when an object is created. It must be placed in public section of class . If we do not specify a constructor, C++ compiler generates a default constructor for object (expects no parameters and has an empty body).

There are no optional parameters in Java. What you can do is overloading the functions and then passing default values.

There are no optional parameters in Java. What you can do is overloading the functions and then passing default values.

The definition of a method, constructor, indexer, or delegate can specify its parameters are required or optional . Any call must provide arguments for all required parameters, but can omit arguments for optional parameters.18 Mar 2022