Late binding early binding java
OR
What is late binding and early binding in java
Answer :
| Late binding | Early binding |
| Late binding applies at runtime | Early binding applies at compile time |
| Object type are unknown until runtime and its value will be assigned dynamically | Variable type are known and check at compile time i.e. when you define variable static |
| Method dynamic dispatch is an example of late binding through which we achieve polymorphism | Static blocks are example of early binding |
| Method overriding is an example of late binding | Method overloading is an example of early binding |
Please see example below:
package com.javahonk.earlylatebinding; import java.util.HashMap; import java.util.Map; public class EarlyLateBinding { // Early binding private static final Map<String, String> MAP = new HashMap<String, String>(); // Early binding static { MAP.put("First Name: ", "Java"); MAP.put("Last Name: ", "Honk"); } public static void main(String[] args) { A a = new B(); if (a instanceof B) { System.out.println("Late binding"); } } } class B extends A { } class A { }
Output:
