Does constructor return any value?

No, constructor does not return any value. While declaring a constructor you will not have anything like return type. In general, Constructor is implicitly called at the time of instantiation. And it is not a method, its sole purpose is to initialize the instance variables.

Does constructor have return type?

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.

Why constructor do not return any value?

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.

What should be returned from a constructor?

A constructor doesn't return anything.

Does constructor return any value in C++?

Constructor does not returns any value because constructor by default return a newly created instance and moreover you are not calling constructor specificlly it means the constructor automatically called when you creating the object so due to it called at the time of object creation it main responsibility is to ...

Does constructor return any value?Is constructor inherited?Can you make a constructor final?

Can a constructor return a void?

Constructor is not like any ordinary method or function, it has no return type, thus it does not return void. Constructors don't create objects.

Can constructors be static?

Java constructor can not be static

One of the important property of java constructor is that it can not be static. We know static keyword belongs to a class rather than the object of a class. A constructor is called when an object of a class is created, so no use of the static constructor.

What does the constructor return in Java?

Therefore, the return type of a constructor in Java and JVM is void.

Does method return any value?

Any method declared void doesn't return a value. It does not need to contain a return statement, but it may do so.

Can a constructor return a char?

Constructor is internally a nonstatic method with name <init> and void return type. It does not return anything.

Can constructor be private?

Yes, we can declare a constructor as private. If we declare a constructor as private we are not able to create an object of a class. We can use this private constructor in the Singleton Design Pattern.

What is difference between constructor and method?

A Constructor is a block of code that initializes a newly created object. A Method is a collection of statements which returns a value upon its execution. A Constructor can be used to initialize an object. A Method consists of Java code to be executed.

Can constructor be overloaded?

Constructors can be overloaded in a similar way as function overloading. Overloaded constructors have the same name (name of the class) but the different number of arguments. Depending upon the number and type of arguments passed, the corresponding constructor is called.

What is the true about constructor?

What is true about constructor? Explanation: Constructor returns a new object with variables defined as in the class. Instance variables are newly created and only one copy of static variables are created. 6.

Can we make constructor final?

No, a constructor can't be made final. A final method cannot be overridden by any subclasses. As mentioned previously, the final modifier prevents a method from being modified in a subclass. The main intention of making a method final would be that the content of the method should not be changed by any outsider.

Do constructors have parameters?

A Java class constructor initializes instances (objects) of that class. Typically, the constructor initializes the fields of the object that need initialization. Java constructors can also take parameters, so fields can be initialized in the object at creation time.

Can main () method return any data?

As the main() method doesn't return anything, its return type is void. As soon as the main() method terminates, the java program terminates too. Hence, it doesn't make any sense to return from the main() method as JVM can't do anything with the return value of it.

Can we declare a class as static?

So, Yes, you can declare a class static in Java, provided the class is inside a top-level class. Such clauses are also known as nested classes and they can be declared static, but if you are thinking to make a top-level class static in Java, then it's not allowed.

Can we create object of abstract class?

We cannot create objects of an abstract class. To implement features of an abstract class, we inherit subclasses from it and create objects of the subclass. A subclass must override all abstract methods of an abstract class.

Why are constructors used?

We use constructors to initialize the object with the default or initial state. The default values for primitives may not be what are you looking for. Another reason to use constructor is that it informs about dependencies.

Can constructor throw an exception?

The short answer to the question “can a constructor throw an exception in Java” is yes!

Can a constructor be virtual?

Constructor can not be virtual, because when constructor of a class is executed there is no vtable in the memory, means no virtual pointer defined yet.

Can constructor be overridden?

Constructor looks like method but it is not. It does not have a return type and its name is same as the class name. But, a constructor cannot be overridden. If you try to write a super class's constructor in the sub class compiler treats it as a method and expects a return type and generates a compile time error.

Can we make a constructor abstract?

Yes! Abstract classes can have constructors! Yes, when we define a class to be an Abstract Class it cannot be instantiated but that does not mean an Abstract class cannot have a constructor. Each abstract class must have a concrete subclass which will implement the abstract methods of that abstract class.

Does constructor need void?

You cannot declare a constructor a void as it's a special function that makes different a constructor and a void function. It is recommended to have a constructor of every class if you don't create it ,it will be automatically created . Hope this helps.