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      Course
      Static Binding

      Java Tutorial

      This Java tutorial is tailored for newcomers, offering a journey from basic principles to complex Java programming techniques. Completing this tutorial equips you with a solid understanding of Java, preparing you for advanced learning. You'll emerge ready to tackle the challenges of becoming a top-tier software engineer, with the skills to innovate and excel in the vast world of software development.

      Static Binding

      Binding is a mechanism creating link between method call and method actual implementation. As per the polymorphism concept in Java, object can have many different forms. Object forms can be resolved at compile time and run time.

      Java Static Binding

      Static binding refers to the process in which linking between method call and method implementation is resolved at compile time. Static binding is also known as compile-time binding or early binding.

      Characteristics of Java Static Binding

      • Linking − Linking between method call and method implementation is resolved at compile time.
      • Resolve mechanism − Static binding uses type of the class and fields to resolve binding.
      • Example − Method overloading is the example of Static binding.
      • Type of Methods − private, final and static methods and variables uses static binding.

      Example of Java Static Binding

      In this example, we've created a Calculator class having two static methods with same name but different arguments to add two and three int values respectively. In main() method, we're calling these methods and printing the result. Based on the number of arguments passed, compiler decides the method using static binding which method is to be called and result is printed accordingly.
      package com.tutorialspoint;
      
      class Calculator{
         public static int add(int a, int b){
            return a + b;
         }
         public static int add(int a, int b, int c){
            return a + b + c;
         }
      }
      
      public class Tester {
         public static void main(String args[]){
            System.out.println(Calculator.add(20, 40));
            System.out.println(Calculator.add(40, 50, 60));
         }
      }

      Output

      60
      150

      Java Static Binding: More Examples

      Example 1

      In this example, we've created a Calculator class having two non-static methods with same name but different arguments to add two and three int values respectively. In main() method, we're calling these methods using object of Calculator class and printing the result. Based on the number of arguments passed, compiler decides the method using static binding which method is to be called and result is printed accordingly.
      package com.tutorialspoint;
      
      class Calculator{
         public int add(int a, int b){
            return a + b;
         }
         public int add(int a, int b, int c){
            return a + b + c;
         }
      }
      
      public class Tester {
         public static void main(String args[]){
            Calculator calculator = new Calculator();   
            System.out.println(calculator.add(20, 40));
            System.out.println(calculator.add(40, 50, 60));
         }
      }

      Output

      60
      150

      Example 2

      In this example, we've created a Calculator class having two non-static methods with same name but different types of arguments to add two int values and two double values respectively. In main() method, we're calling these methods using object of Calculator class and printing the result. Based on the type of arguments passed, compiler decides the method using static binding which method is to be called and result is printed accordingly.
      package com.tutorialspoint;
      
      class Calculator{
         public int add(int a, int b){
            return a + b;
         }
         public double add(double a, double b){
            return a + b;
         }
      }
      
      public class Tester {
         public static void main(String args[]){
            Calculator calculator = new Calculator();   
            System.out.println(calculator.add(20, 40));
            System.out.println(calculator.add(20.0, 40.0));
         }
      }

      Output

      60
      60.0