Tag
#java
Everything I’ve written about java. Notes, tutorials and lessons collected in one place.
3 posts
- · 32 min readJava
Java: Installing the JDK and Your First Hello, World!
Install JDK 25 on Windows, macOS and Linux, understand PATH, then write, compile and run your first Java program: javac, java, jshell and first errors.
#java#jdk#openjdk#installation#jshell#programming#getting-started - · 23 min readJava
Java: A Journey into the Depths of the JVM
We open up every part of the JVM one by one, using everyday analogies: the class loader, memory areas, garbage collector, JIT, threads, JNI and the module system — all in plain language.
#java#jvm#jit#garbage-collection#classloader#programming - · 39 min readJava
Java: What Is Java and How Does It Work?
Starting Java from scratch: what is Java for, who made it? How does a program run, what are binary and bytecode, which layers live inside the JVM, and how do JIT and the garbage collector work?
#java#jvm#bytecode#jit#programming#getting-started