What is difference between static method and static
variable?
- 7 Answers
- 31221 Views
- I also Faced
- E-Mail Answers
Answer Posted / joh-b tanzania
The static keyword denotes that a member variable, or method, can be accessed without requiring an instantiation of the class to which it belongs.
In simple terms, it means that you can call a method, even if you've never created the object to which it belongs! Every time you run a stand-alone application (which requires a static main method), the virtual machine can call the main method without creating a new application object. Of course, unless the application's methods are all static, you will need to create an instance of it at some point.
With regard to member variables, it means that they can be read from, and written to, without creating an object. You may have noticed that many classes create constants that can be read, without creating an object.
static final int VERSION = 2;
Static member variables are shared by all instances of the class to which they belong. When writing classes, this can be a handy feature. Consider the following example, where a counter is used to track how many myObject instantiations have taken place.
public class myObject
{
static int objectCount = 0;
public myObject()
{
objectCount++;
}
public String toString()
{
return new String ("There are " + objectCount + " objects");
}
}
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
What is considered an anti pattern?
What is a vector in java?
Can two objects have same hashcode?
What is meant by data hiding in java?
What is maximum size of arraylist in java?
What are the legal operands of the instanceof operator?
What are the benefits of java?
Implement two stacks using a single array.
When should a function throw an exception?
What do you mean by chromounits in java8?
What are measurable parameters?
Can we compare two strings in java?
Explain what pure virtual function is?
What is public static?
What is the meaning of immutable regarding string?
