Java Features (Easy Points):
Simple
Java is easy to learn and understand.Object-Oriented
Everything in Java is based on classes and objects.Platform Independent
Java code runs on any system (Windows, Linux, Mac) using JVM.Secure
Java has built-in security features to protect data and code.Robust
Java handles errors using exception handling and memory management.Multithreaded
Java can do many tasks at the same time (like downloading and playing music).High Performance
Java uses Just-In-Time (JIT) compiler for fast execution.Portable
Java code can run on different machines without changes.
Java Architecture (Step by Step):
Java follows this flow:
Java Source Code (.java)
You write your code in a.java
file.Java Compiler (javac)
It converts.java
file to bytecode (.class
file).Bytecode
This is a special code that is not machine-specific.Java Virtual Machine (JVM)
JVM runs the bytecode on any system and converts it into machine code.
Simple Diagram:
.java file → (javac) → .class file → (JVM) → Machine Code
Example:
public class MyJava {
public static void main(String[] args) {
System.out.println("Java is simple!");
}
}
-
Compile:
javac MyJava.java
-
Run:
java MyJava
-
Output:
Java is simple!
Top comments (0)