Table of Contents
- 1 Is constructor return type void?
- 2 What happens if constructor has a return type?
- 3 Does constructor return data type?
- 4 Can constructors be overloaded?
- 5 Why constructor have no return type?
- 6 How does a constructor behave if the constructor has a return type?
- 7 What is constructor types of constructor?
- 8 What are the types of constructors?
- 9 Do Constructors return anything?
- 10 Can constructor call another method?
Is constructor return type void?
Constructor is not like any ordinary method or function, it has no return type, thus it does not return void.
What happens if constructor has a return type?
If we add a return type to a constructor, then it will become a method of the class. This is the way java runtime distinguish between a normal method and a constructor. It’s recommended to not have method name same as the class name because it creates confusion.
Does constructor return data type?
No, constructor does not have any return type in Java. 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.
What is the return type of contractor?
While constructors are similar to methods, they are not methods. They have no return type, are not inherited, and cannot be hidden or overridden by subclasses.
Why constructors are not inherited?
12 Answers. In simple words, a constructor cannot be inherited, since in subclasses it has a different name (the name of the subclass). Methods, instead, are inherited with “the same name” and can be used.
Can constructors be overloaded?
Yes! Java supports constructor overloading. In constructor loading, we create multiple constructors with the same name but with different parameters types or with different no of parameters.
Why constructor have no return type?
So the reason the constructor doesn’t return a value is because it’s not called directly by your code, it’s called by the memory allocation and object initialization code in the runtime. Its return value (if it actually has one when compiled down to machine code) is opaque to the user – therefore, you can’t specify it.
How does a constructor behave if the constructor has a return type?
Constructor must not have a return type. By definition, if a method has a return type, it’s not a constructor.
Why constructor has no return type?
What does a constructor return?
A constructor doesn’t return anything. A constructor is called to initialize an object. A constructor can only be used to initialize an object; you can’t actually call a constructor explicitly (for one thing, constructors do not have names).
What is constructor types of constructor?
A constructor is a special method that is used to initialize an object. A constructor is invoked at the time of an object creation. Constructor name must be the same as its class name….Different Types Of Constructor In C#
Constructor | Method |
---|---|
The constructor must not have a return type. | The method has or not have a return type. |
What are the types of constructors?
Constructor Types
- Default Constructor.
- Parameterized Constructor.
- Copy Constructor.
- Static Constructor.
- Private Constructor.
Do Constructors return anything?
Constructors do not return anything, and constructors don’t have a return type. A constructor is a special block of code that is called to initialize a new object.
Is constructor overriding possible?
Constructor Overriding is never possible in Java. Constructor looks like a method but name should be as class name and no return value. Overriding means what we have declared in Super class, that exactly we have to declare in Sub class it is called Overriding.
Does a constructor have a return type in Java?
No, constructor does not have any return type in Java. 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.
Can constructor call another method?
No, you cannot call a constructor from a method. The only place from which you can invoke constructors using “this ()” or, “super ()” is the first line of another constructor. If you try to invoke constructors explicitly elsewhere, a compile time error will be generated.