What is a protected void?
protected is an access modifier and it means that access is limited to the containing class or types derived from the containing class. void is the return type of the method and it means it it does not return anything.
What is the difference between void and public void?
public − This is the access specifier that states that the method can be accesses publically. static − Here, the object is not required to access static members. void − This states that the method doesn’t return any value.
What is private void and public void?
It’s three completely different things: public means that the method is visible and can be called from other objects of other types. Other alternatives are private, protected, package and package-private. … void means that the method has no return value. If the method returned an int you would write int instead of void.
What is private void in Android?
2011/12/20. Both create a void method (a method that does not return anything) But only the public method can be accessed by other classes. The private method can only be used by the class in which it is contained. For example, if I made a Example class: 1.
Why protected is used in Java?
Protecting a constructor prevents the users from creating the instance of the class, outside the package. During overriding, when a variable or method is protected, it can be overridden to other subclass using either a public or protected modifier only.
What is the purpose of final keyword in Java?
Java final keyword is a non-access specifier that is used to restrict a class, variable, and method. If we initialize a variable with the final keyword, then we cannot modify its value. If we declare a method as final, then it cannot be overridden by any subclasses.
What void means 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. … main: It is the name of Java main method.
What is the difference between void and static void?
what’s the difference between #static void method and void method? static void method is a static method which does not return any thing. … void method is a method which also return nothing. But for calling simple method you have to create a class object and called method by object.
Does public void mean static?
It means three things. 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.
Why do we use public static void?
public is used as an access modifier for a main method . static is used so that it can directly load in memory with creating any instance. void is used because it done not return any value and main is the entry point of program.
Why public static void main is used in Java?
When java runtime starts, there is no object of the class present. That’s why the main method has to be static so that JVM can load the class into memory and call the main method. If the main method won’t be static, JVM would not be able to call it because there is no object of the class is present.
What happens if we write static public void instead of the public static void?
If you write static public void instead of public static void then it is perfectly OK. Your Java program will compile and run successfully. … You need not to create an instance of the given class in order to access its static members. void : It is used to specify return type of the method.