Can a class name student can have constructor with different name?

Constructor(s) of a class must have the same name as the class name in which it resides. A constructor in Java can not be abstract, final, static and Synchronized. Access modifiers can be used in constructor declaration to control its access i.e which other class can call the constructor.

Why should a constructor name be the same name as a class name?

Every class object is created using the same new keyword, so it must have information about the class to which it must create an object. For this reason, the constructor name should be the same as the class name.

Is it mandatory to have class in constructor?

The compiler doesn’t ever enforce the existence of a default constructor. You can have any kind of constructor as you wish. For some libraries or frameworks it might be necessary for a class to have a default constructor, but that is not enforced by the compiler.

Which is correct rules for constructor?

Rules for Constructor A constructor cannot have a return type. A constructor must have the same name as that of the Class. A Constructor cannot be overridden. A Constructor cannot be final.

What will happen if method name and constructor name are same?

Yes, It is allowed to define a method with the same name as that of a class. There is no compile-time or runtime error will occur. Normally the constructor name and class name always the same in Java.

Is a constructor the same as a class?

In class-based object-oriented programming, a constructor (abbreviation: ctor) is a special type of subroutine called to create an object. Constructors often have the same name as the declaring class.

Can multiple constructors have the same name?

A user can implement constructor overloading by defining two or more constructors in a class sharing the same name. C# can distinguish the constructors with different signatures. i.e. the constructor must have the same name but with different parameters list.

What is the difference between a class and a constructor?

A Constructor initializes a object that doesn’t exist. A Method does operations on an already created object. A class can have many Constructors but must not have the same parameters. A class can have many methods but must not have the same parameters.

What is the rule of constructor in class?

Rules to be remembered A constructor does not have return type. The name of the constructor is same as the name of the class. A constructor cannot be abstract, final, static and Synchronized. You can use the access specifiers public, protected & private with constructors.

Can we name a method same as a constructor name?

Yes, It is allowed to define a method with the same name as that of a class. Normally the constructor name and class name always the same in Java.

What happens if you keep a method name same as the class name and the method has a return type?

Finally, we can conclude that when we have a return type for the methods with the name same as a class name then that loses the features the constructors hold and that will behave like a method.

Should the constructor have the same name as the class?

Yes, the constructor should always have the same name as the class. Constructor looks like method but it is not. It does not have a return type and its name is same as the class name. Mostly it is used to instantiate the instance variables of a class. If the programmer doesn’t write a constructor the compiler writes a constructors on his behalf.

How to call other constructors inside a constructor in Java?

In java, it’s possible to call other constructors inside a constructor. It’s just like method calling but without any reference variable (obviously as instance is fully initialized as of now). Now we can call constructors of either same class or of parent class. Both uses different syntax.

What is the return type of constructor in a class?

A constructor is a block of code similar to method that’s automatically called when an instance of an object is created. But there is no return type for a constructors. Constructors are not considered members of a class. Constructors are used to initialise a newly created object via the new operator.

What are constructors in C++?

Constructors are special methods that are also included in the body of the class definition. And they have the name of the class. Classes work like types and constructor falls under the Type namespace. So this is technically allowed. And it is called class overloading. We put car at the beginning to indicate that C1 is type of class Car.