What is void means in Java?

What is void means in Java?

The void keyword specifies that a method should not have a return value.

Why do we use void method in Java?

The void keyword allows us to create methods which do not return a value. 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 meant by void in programming?

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.

Is void a Java type?

Since JDK 1.1, Java provides us with the Void type. Its purpose is simply to represent the void return type as a class and contain a Class public value. It’s not instantiable as its only constructor is private.

What is difference between void and void in Java?

Void and void?” Easy. void is a primitive type. Void is an reference type that inherits from Object .

What is the purpose of void class?

what is purpose of Void class in Java? It is an uninstantiable class that hold a reference to the Class object representing the primitive Java type void. The Void class according to javadoc exists because of the fact that some time we may need to represent the void keyword as an object.

What is the purpose of void methods?

Void is a keyword used in many programming languages. In JAVA, void is used when you do not want your function to return anything.

Is void a data type in Java?

The Void class is an uninstantiable placeholder class to hold a reference to the Class object representing the Java keyword void. Yes, void is definitely type, meaning ‘nothing’.

What is void variable?

Declaring a variable in C is about telling the compiler to reserve space in memory, the size of memory reserved being dependent on the type used. A void variable would be a variable which has no type and hence occupies no space at all, making it completely meaningless to declare.

What is a void class?

Void class is a placeholder which holds a reference to a class object if it represents void keyword. It is a uninstantiable placeholder. Well, uninstantiable means that this class have a private constructor and no other constructor that we can access from outside.

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 is the purpose of void Class?