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Overview of Java
The document provides an overview of Java programming including: - A brief history of Java and its evolution since its initial release in 1995. - An explanation that Java is both an object-oriented language and a robust platform with its own runtime environment and APIs. - Descriptions of Java's key features like portability, security, multi-threading, and being platform independent. - Examples of Java's widespread use in areas like mobile technology, web applications, and enterprise applications.
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Overview of Java
- 1. Spotle.ai Study Material Spotle.ai/Learn OOPSWith Java - Java Language Overview
- 2. Spotle.ai Study Material Spotle.ai/Learn MousumDutta Chief Data Scientist, Spotle.ai IIT Kharagpur Instructors Sk Mamtajuddin Head of Technology, Spotle.ai 2
- 3. Spotle.ai Study Material Spotle.ai/Learn OOPSWith Java 3 Java is a good example – in fact a great example of an Object Oriented Language with advanced and simplified features. Java is free to access and can run on all platforms. Like your coffee, java is strong, flexible; powering large enterprise applications around the world.
- 4. Spotle.ai Study Material Spotle.ai/Learn Java– A Bit Of History 4 Java was developed by James Gosling at Sun Microsystems (now acquired by Oracle) and released in 1995. Java has undergone a lot of evolution since JDK 1.0 released in 1996 . The latest java library release is Java SE 12 (released in March 2019).
- 5. Spotle.ai Study Material Spotle.ai/Learn JavaIs Both A Language And A Platform Java is a secure, robust, object oriented language. Java has its own run-time environment and APIs also making it a robust platform. 5
- 6. Spotle.ai Study Material Spotle.ai/Learn JavaFeatures 6 Java Portable Secure Multi-threaded Platform - Independent Object-Oriented Distributed Java Is Awesome!
- 7. Spotle.ai Study Material Spotle.ai/Learn AdvantageJava 7 ✓Is comparatively easy to learn, code, compile and debug ✓Object-oriented providing higher reusability and modularisation ✓Is platform independent allowing java programs to be run on any platform or Operating System ✓Provides robust security features. Java considers security as part of its design. The Java language, compiler, interpreter, and runtime environment were each developed with security in mind ✓Supports distributed computing through in-built network features ✓Multi-threaded to allow concurrent processing ✓Garbage collection is built into the program, allowing unused memory to be reclaimed.
- 8. Spotle.ai Study Material Spotle.ai/Learn KeyApplication Areas 8 Robotics Mobile Tech Web Applications Embedded Systems Enterprise Applications 3 Billion Devices Including the popular Android OS run on Java!
- 9. Spotle.ai Study Material Spotle.ai/Learn JavaPlatforms 9 J2SE The Core Java Functionality J2EE For Network Applications J2ME Java For Mobile Applications JAVAFX For Building Rich GUI Java Platforms
- 10. Spotle.ai Study Material Spotle.ai/Learn WhatIs New In Java 12? 10 Make the coding process easier by extending the switch statement to be used as statement or expression Boosts the JDK (Java Development Kit) build process for the 64 bit platform Reduces garbage collection time by running evacuation work in threads Upgrades the garbage collector to instantly return unused Java heap memory to the OS. Makes the termination of garbage collector more efficient.
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- 12. Spotle.ai Study Material Spotle.ai/Learn Howmany Java Developers In The World? Oracle says it's 9,000,000. Wikipedia claims it's 10,000,000. And the guys from NumberOf.net seem to be the most precise – they know that there are exactly 9,007,346 Java developers out there. 12 Src: plumbr.io
- 13. Spotle.ai Study Material Spotle.ai/Learn ItPays To Know Java 13 Average pay for a Java Software Developer / Programmer (at entry level) is Rs 4,34,304 per year Average pay for a Senior Java Architect is Rs 22,01,562 Source: Payscale.com
- 14. Spotle.ai Study Material Spotle.ai/Learn TypicalCareer Path 14 Developer Senior Developer Software Designer Solution Architect J2EE Development Core Java Development Android Development Where Can You Start?How Do You Progress?
- 15. Spotle.ai Study Material Spotle.ai/Learn SomeTypical Interview Questions 15 Which is the latest version of Java in use? What new features are included in the latest Java release? What are the types of Java Platform? What are the key advantages of Java? How does Java ensure better memory utilization? How does Java provide better performance?