GuideTechnology
10 min read
Prepare for Java interviews by concept: for each topic a short answer, the real explanation, a small example, the usual follow-up question and the common incorrect answer, covering the language, collections, streams, the JVM and concurrency.
GuideTechnology
16 min read
A working mental model of the Java Virtual Machine: how classes are loaded and initialised, what lives on the stack and the heap, how garbage collection decides what to free and why memory leaks still happen, and what the JIT compiler does. Each simplification is marked, and common myths are corrected.
GuideTechnology
15 min read
What Java actually is, how a .java file becomes a running program, what the JDK, JRE and JVM each do, and how to compile and run your first program. Plus the full roadmap of this 41-article course, from zero to a tested Spring Boot API.
