What Is A Void Return Type?

What do you mean by void return type?

When used as a function return type, the void keyword specifies that the function does not return a value.

A void* pointer can be converted into any other type of data pointer.

A void pointer can point to a function, but not to a class member in C++.

You cannot declare a variable of type void ..

Which has return type void?

______________ have the return type void. Explanation: Constructor creates an Object and Destructor destroys the object. They are not supposed to return anything, not even void. … Explanation: There are no void objects.

What is the difference between public void and private void?

The keywords ‘public’ and ‘void’ designate different things about a method; they are not related to the same concept. … There are other designations — private and protected — that mean other things; private, for instance, designates a method that can only be called from within the class in which it is declared.

Is void a type?

The void type, in several programming languages derived from C and Algol68, is the type for the result of a function that returns normally, but does not provide a result value to its caller. Usually such functions are called for their side effects, such as performing some task or writing to their output parameters.

Does void return anything?

The void functions are called void because they do not return anything. … From a void function, we cannot return any values, but we can return something other than values.

Where do you declare a parameter variable?

Parameter, local, and instance variables Parameters are declared in between the parentheses in the header of a method. Local variables are declared between the curly-braces of a method, in a statement (which needs to end with a semicolon).

What is the opposite of void in Java?

First public means that any other object can access it. static means that the class in which it resides doesn’t have to be instantiated first before the function can be called. void means that the function does not return a value.

What is a void?

noun. Definition of void (Entry 2 of 3) 1a : opening, gap. b : empty space : emptiness, vacuum. 2 : the quality or state of being without something : lack, absence.

What is a void function?

Void functions are created and used just like value-returning functions except they do not return a value after the function executes. 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.

What is true of a void method?

A void method is one that simply performs a task and then terminates. A value – returning method not only performs a task but also sends a value back to the code that called it. … It causes the method to end execution and it returns a value to the statement that called the method.

What is a void property?

A ‘void’ can be defined as a property, which does not have a legitimate tenant. … A property may become empty following the death of a tenant, the abandonment of a property or a tenant transferring to or buying another property. All housing providers can expect to see a proportion of their homes becoming vacant.

What does feeling a void mean?

If you describe a situation or a feeling as a void, you mean that it seems empty because there is nothing interesting or worthwhile about it. His death has left a void in the entertainment world that can never be filled.

Does a void method return null?

There’s no way to instantiate a Void, so the only thing you can return is null.

What happens if you forget the return statement in a non void function?

Failure to return a value from a function with a non-void return type (other than main) will result in undefined behavior.

Which procedure do not return a value?

A Sub procedure does not return a value to the calling code. You call it explicitly with a stand-alone calling statement. You cannot call it by simply using its name within an expression.

What are void methods?

The void Keyword This method is a void method, which does not return any value. Call to a void method must be a statement i.e. methodRankPoints(255.7);. It is a Java statement which ends with a semicolon as shown in the following example.

What is Java void?

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 .

What is the difference between void and return type?

1 Answer. The “void” return type means that this method doesn’t have a return type. … This other method on the other hand, returns a String. This means that you can use the returned value in your code for further processing.

How do you end a void function?

Use return; instead of return(0); to exit a void function.

What is an empty void?

noun. an empty space; emptiness: He disappeared into the void. something experienced as a loss or privation: His death left a great void in her life. a gap or opening, as in a wall.

Can a void method have parameters?

You can use any name you want for methods, except main or any of the Java keywords. … And they are both void , which means that they don’t yield a result (unlike the Math methods, for example). The parentheses after the method name contain a list of variables, called parameters, where the method stores its arguments.