0
The Class object is automatically created by the JVM when an object is created. The Class object provides information about the Class and is primarily used by the IDEs and factory classes.
The method that is automatically called when an object is created is called a constructor. In Java, the constructor is a method that has the same name as the class.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What will be automaticlly invoked when an object is created?
The constructor.
When the destructor may be invoked in c?
C is not an object-oriented language -- there are no destructors. In C++, however, an object's destructor is invoked automatically when the object falls from scope. The destructor can also be invoked by manually deleting a raw pointer to the object (or one of its base classes), however you should only ever use the delete operator if the object was instantiated with the new operator, and only after all references or pointers to the object have fallen from scope. The safest way to manage raw pointers is to use a resource handle or smart pointer.
Can a static function be made virtual?
No. Virtual functions are invoked according to the runtime type of the object. That is; the most-derived override is automatically invoked even when the runtime type of the object cannot be determined at compile time. This is achieved through the object's virtual table. Static methods do not have any object associated with them; they can be invoked even when no object of the type exists. Without an object, there can be no virtual table. Thus static functions cannot be virtual. They are mutually exclusive concepts.
What is object in java programming?
In java object is an instance of a class. Objects are created using the new keyword. When you use the new keyword along with a class name, an object of that class would get created. Ex: Ferrari obj = new Ferrari(); Here a new object of Ferrari gets created. A constructor of the class Ferrari would get invoked during the object creation.
What is an object function?
A function object is a computer programming construct allowing an object to be invoked or called as if it were an ordinary function, usually with the same syntax ...
How constructor automatically invoked?
when we create the object of that class
What will be automaticlly invoked when an object is created?
The constructor.
What is the diffferent between method and constructor?
Both are functions, i.e., places where you can write code. A constructor is simply a special method that is invoked automatically when an object is created.
When the destructor may be invoked in c?
C is not an object-oriented language -- there are no destructors. In C++, however, an object's destructor is invoked automatically when the object falls from scope. The destructor can also be invoked by manually deleting a raw pointer to the object (or one of its base classes), however you should only ever use the delete operator if the object was instantiated with the new operator, and only after all references or pointers to the object have fallen from scope. The safest way to manage raw pointers is to use a resource handle or smart pointer.
Can a static function be made virtual?
No. Virtual functions are invoked according to the runtime type of the object. That is; the most-derived override is automatically invoked even when the runtime type of the object cannot be determined at compile time. This is achieved through the object's virtual table. Static methods do not have any object associated with them; they can be invoked even when no object of the type exists. Without an object, there can be no virtual table. Thus static functions cannot be virtual. They are mutually exclusive concepts.
What is object in java programming?
In java object is an instance of a class. Objects are created using the new keyword. When you use the new keyword along with a class name, an object of that class would get created. Ex: Ferrari obj = new Ferrari(); Here a new object of Ferrari gets created. A constructor of the class Ferrari would get invoked during the object creation.
What is instance method?
An instance method is nothing but a normal java method. They can be invoked only by creating an object of the class that contains the method definition. Unlike static methods that can be invoked without creating an object of the class.
What is an object function?
A function object is a computer programming construct allowing an object to be invoked or called as if it were an ordinary function, usually with the same syntax ...
Is constructor created automatically in java?
There is a default constriuctor that takes no argument for every class that extends Object.
How objects are created?
By using the new keyword. Whenever you use the new keyword along with a class name, an object of that class gets created. Ex: Ferrari obj = new Ferrari(); The above line creates an object of type "Ferrari" and the constructor inside the class named Ferrari would get invoked and an object of type Ferrari would get created.
What method that returns string representation of the contents of the variable?
Since the question is in the Java category: in Java, the method is called toString(). This method will automatically be invoked if you implicitly convert an object to String type, for example: "The answer is: " + myObject In this example, the String concatenation (the plus sign) forces the object, myObject, to type String - to do this, the object's toString() method will be called.
How do you invoke the constructor function in c plus plus?
There is no such thing as a constructor function in C++ (constructors have no return value, not even void, and cannot be called like regular functions). Constructors are invoked rather than called directly, either by declaring a static variable of the class type, or via the C++ new operator.
