WHERE JAVA IS USED? =================== APPLICATION DEVELOPMENT APPLICATION: ============ COLLECTION OF PROGRAMS CAN USED TO PERFORM MULTIPLE FUNCTIONALITY. EX: WHATSAPP{ TEXTING INCOMING OUTGOING AUDIO CALLING INCOMING OUTGOING VIDEO CALLING INCOMING OUTGOING STATUS RECEIVE SEND TRANSACTIONS } PROGRAM: ======= SET/COLLECTION OF INSTRUCTIONS IS CALLED AS A PROGRAM class ClassName{ public static void main(String[] args) { System.out.println("Hello World!"); } ============================================= Application Architecture: ========================= Web-Application ==> can be accessed by more than one user over the internet. ex: Zoom, gmail, youtube etc. Ex: calculator: =============== integration differentiations log trigon ariths etc. ex: gmail login: mail: ravivraoinfs@gmail.com pwd: xxxxxxxxxxxx login login successful/login fail 1) Frontend Layer/UI Layer: =========================== for common user interactions (L1/T1) ==> Technologies: HTML (Hyper Text Markup Language) CSS (Cascading Style Sheets) JS (JavaScript) 2) Business Logic Layer: ========================= High Level Programming Languages C, C++, Java, Python etc. client: ======= Competitive Exams Banking IBPS ==>release, apply, conduct, results, interview ====> Software Organizations TCS/Tech-Mahindra SBI 3) Data Access Layer (DAL): ========================== Backend Layer ==> Database is available: Oracle/ MySQL/ Postgre SQl, MongoDB etc. Sql ==> Structured Query Language Java, Python, C# etc. ==> Full stack course designed into three modules: 1) Module-1: core java UI Technologies 2) Module-2: Sql DB: MySQL/Oracle Advanced Java 3) Frameworks: Angular Springboot with Microservices with real time project AWS Integration