Java static method

The static keyword is used to create methods that will exist independently of any instances created for the class.

Static methods do not use any instance variables of any object of the class they are defined in. Static methods take all the data from parameters and compute something from those parameters, with no reference to variables.

 Class variables and methods can be accessed using the class name followed by a dot and the name of the variable or method.

Example

The static modifier is used to create class methods and variables, as in the following example −

Live Demo

public class InstanceCounter {

   private static int numInstances = 0;

   protected static int getCount() {
      return numInstances;
   }

   private static void addInstance() {
      numInstances++;
   }

   InstanceCounter() {
      InstanceCounter.addInstance();
   }

   public static void main(String[] arguments) {
      System.out.println("Starting with " + InstanceCounter.getCount() + " instances");

      for (int i = 0; i < 500; ++i) {
         new InstanceCounter();
      }
      System.out.println("Created " + InstanceCounter.getCount() + " instances");
   }
}

Output

Started with 0 instances
Created 500 instances

V Jyothi

Updated on 19-Aug-2019 06:49:40

• Related Questions & Answers
• Static method in Interface in Java
• Are values returned by static method are static in java?
• Default method vs static method in an interface in Java?
• Static vs. Non-Static method in C#
• Can we override the static method in Java?
• Why main() method must be static in java?
• How to call a non-static method of an abstract class from a static method in java?
• Why the main () method in Java is always static?
• Class method vs static method in Python
• Java static keyword
• Java static variable
• Java static block
• Why can't static method be abstract in Java?
• Can we overload or override a static method in Java?
• Can we override a private or static method in Java