Implementing and Extending Interface in Java
Interfaces:
The interface in java is a mechanism to achieve abstraction.
An interface in java is a blueprint of a class. It has static constants and abstract methods.
There can be only abstract methods in the java interface not method body. It is used to achieve abstraction and multiple inheritance in Java.
Java Interface also represents IS-A relationship.
An interface is a completely "abstract class" that is used to group related methods with empty bodies.
Note: Abstraction lets you focus on what the object does instead of how it does it.
Ways to achieve Abstraction
There are two ways to achieve abstraction in java
Abstract class (0 to 100%)
Interface (100%)
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code + Notes + Practice Sheet:
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Course Videos:
1 Introduction to Object Oriented Programming: • Introduction to Object Oriented Progr...
2 Java Buzzwords: • Java Buzzwords
3 Java Paradigms Principles: • Java Paradigms Principles
4 Java Components Environments: • Java Components Environments
5 Introduction to Naming Conventions Java Classes and Objects: • Introduction to Naming Conventions Ja...
6 Java Constructors: • Java Constructors
7 Java Garbage Collectors: • Java Garbage Collectors
8 How to Install and Run a Java Program using JDK: • How to Install and Run a Java Program...
9 Java this keyword: • Java this keyword
10 Java Access Control: • Java Access Control
11 Variables in java: • Variables in java
12 Type conversion and casting in Java: • Type conversion and casting in Java
13 Java Arrays: • Java Arrays
14 Datatypes in java: • Datatypes in java
15 Java Control Statements: • Java Control Statements
16 Java Operator: • Java Operator
17 Methods Recursion: • Methods Recursion
18 Method and Constructor Overloading: • Method and Constructor Overloading
19 Introduction to Inheritance: • Introduction to Inheritance
20 Java String Class: • Java String Class
21 Java Final Keyword: • Java Final Keyword
22 Parameter Passing: • Parameter Passing
23 String Tokenizer class: • String Tokenizer class
24 Scanner class: • Scanner class
25 Random class: • Random class
26 Bitset class: • Bitset class
27 Classification of Inheritance: • Classification of Inheritance
28 Super Keyword in Java: • Super Keyword in Java
29 Abstract class in Java: • Abstract class in Java
30 Java Packages: • Java Packages
31 Implementing and Extending Interface in Java: • Implementing and Extending Interface ...
32 Variables in Interface: • Variables in Interface
33 Introduction Exception Handling: • Introduction Exception Handling
34 Exception Handling Keywords: • Exception Handling Keywords
35 Throw Throws Finally keywords: • Built in Exceptions
36 Built in Exceptions: • Built in Exceptions
37 User Defined Exceptions: • User Defined Exceptions
38 Introduction to Multithreading: • Introduction to Multithreading
39 Java Thread Model: • Java Thread Model
40 Creating Threads in java: • Creating Threads in java
41 Thread Priority in Java: • Thread Priority in Java
42 Synchronizing Threads in java: • Synchronizing Threads in java
43 Inter Thread Communication: • Inter Thread Communication
44 Collection Frameworks in Java ArrayList class: • Collection Frameworks in Java ArrayLi...
45 Hashset Class: • Hashset Class
46 Linked List Class: • Linked List Class
47 Program Hashset: • Program Hashset
Books referred:
JAVA: THE COMPLETE REFERENCE ,12TH EDITION Herbert Schildt : https://amzn.to/453THBh
-Core Java: An Integrated Approach, New: Includes All Versions Upto Java 8 : https://amzn.to/3BzPOqh
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