Member Avatar for Himanshu Chawla

what is jquery ?

What is java script and what are prerequirements for learning javascript ?

What is the diiference between advance java and core java ?

What is AJAX ?

As i am beginner to JAVA and want to learn about java and thats y i am asking this question .....??

Thank you

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  • Latest Post Latest Post by rotten69

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Questions from touch several different technologies that beginners often confuse. These are different ecosystems, so pick one to focus on first. For someone whose goal is to learn Java, start with the language and its standard libraries before carrying effort into browser-side tools. That mirrors the practical advice from . Early core skills to practise: basic syntax, object-oriented design, collections, exception handling, file I/O and simple threading. Small programs and running them from an IDE or the command line teach the full workflow.

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello, Java!");
    }
}

Core vs. “advanced” Java is mostly about scope and purpose. Core Java = the language plus the standard API you use for algorithms, data structures, I/O and concurrency. “Advanced” (or enterprise) topics are about building networked/server applications and production systems: persistence, web endpoints, dependency injection, build and test automation, deployment and monitoring. Practical advanced topics to add after you know core Java: JDBC/JPA, RESTful services, a framework such as Spring, Maven/Gradle, unit testing with JUnit, and basics of deploying to a server or container.

If you later need browser work, learn modern JavaScript fundamentals first: ES6+ syntax, DOM and event handling, and asynchronous patterns (promises / async-await). Many tasks that used to require helper libraries can now be done with standard APIs. Minimal example of a network request:

fetch('/api/hello')
  .then(r => r.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Practical learning path: pick one beginner tutorial or book and do every exercise; build 2–3 small projects (console tool, file processor, simple CRUD web app); add tooling (Git, a build tool, unit tests); then move to server-side topics and one framework. As noted, reading helps — make sure the book/exercise set matches your style and code along chapter by chapter. Keep problems tiny, debug frequently, and grow features incrementally.

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Member Avatar for stultuske

first of all:
jquery, javascript and ajax are not really related to Java.

jquery is a library/framework in JavaScript.
JavaScript is a scripting language, prerequisites, being willing to put in some effort, I guess.

advance Java vs core Java? good question, since not everybody that says "advance Java" means the same. a simple answer: being able to work with frameworks.

AJAX = Asynchronous JavaScript and XML.

if you are a beginner in Java that wants to learn about Java:

ignore JavaScript, jQuery, AJAX, ...

buy a decent book and stick with it, or start with the sticky thread on top of the Java forum.

Member Avatar for rotten69

My suggestion for the book that you should be reading (if you only want to learn Java from the basics and gradually advancing to higher levels) is Thinking in Java by Bruce Eckel. It is really helpful n useful.

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