Can a void function have a return statement?

In lieu of a data type, void functions use the keyword “void.” A void function performs a task, and then control returns back to the caller–but, it does not return a value. You may or may not use the return statement, as there is no return value.

Can we use void and return together?

A void() cannot return a value that can be used. But it can return a value which is void without giving an error.

Can a void method return null?

Dart allows returning null in functions with void return type but it also allow using return; without specifying any value. To have a consistent way you should not return null and only use an empty return.

What does it mean when a method returns void?

In computer programming, when void is used as a function return type, it indicates that the function does not return a value. When void appears in a pointer declaration, it specifies that the pointer is universal. When used in a function’s parameter list, void indicates that the function takes no parameters.

Which have the return type void?

Discussion Forum

Can a void function have a return statement C++?

A void function can return A void function cannot return any values. But we can use the return statement. It indicates that the function is terminated.

What is the difference between a void method and a value returning method?

1 Answer. The “void” return type means that this method doesn’t have a return type. It actually doesn’t need one because you “print” your String onto the System’s output stream. In an application, this approach may be used to print runtime specific messages on the console for example.

Can you return nothing in Java?

In Java, a null value can be assigned to an object reference of any type to indicate that it points to nothing. The compiler assigns null to any uninitialized static and instance members of reference type. In the absence of a constructor, the getArticles() and getName() methods will return a null reference.

Is void a data type?

Void is considered a data type (for organizational purposes), but it is basically a keyword to use as a placeholder where you would put a data type, to represent “no data”.

What does return method mean?

A method returns to the code that invoked it when it completes all the statements in the method, reaches a return statement, or throws an exception, whichever occurs first. You declare a method’s return type in its method declaration. Within the body of the method, you use the return statement to return the value.

Which of the following return type does not return anything?

void
1. Which of the following will not return a value? Explanation: Because void represents an empty set of values so nothing will be return.

Can a void method have a return statement?

You can have return in a void method, you just can’t return any value (as in return 5;), that’s why they call it a void method. Some people always explicitly end void methods with a return statement, but it’s not mandatory.

What is a public void method?

void is a Java keyword. Used at method declaration and definition to specify that the method does not return any type, the method returns void. It is not a type and there is no void references/pointers as in C/C++. For example: public void method() { //… return; // — In this case the return is optional }.

Can an overriding method have a different return type?

Overriding method can have different return type but this new type should be, A Non-Primitive. A Subclass of what base class’s overridden method is returning i.e. co-variant Return Type.

What is the need of void class in Java?

Void: It is a keyword and used to specify that a method doesn’t return anything. As 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 main () method as JVM can’t do anything with the return value of it.