Java Language Guide¶

Java interview preparation with structured categories for DSA, design, and CS fundamentals.

Directory Structure¶

All Java code lives under Languages/java/.

Category	Topics	Path
Algorithms & DSA	Coding patterns, LeetCode solutions	`Languages/java/algorithms-dsa/`
Low-Level Design	SOLID, Design Patterns, OOP Problems	`Languages/java/low-level-design-lld/`
System Design HLD	Scalability, distributed systems	`Languages/java/system-design-hld/`
Computer Core	OS, Networking, Databases	`Languages/java/computer-core/`
Application Core	JVM internals, Collections, Streams, Concurrency	`Languages/java/application-core/`
Frameworks & Libraries	Spring Boot, Hibernate, JUnit, Maven/Gradle	`Languages/java/frameworks-libraries/`

cd Languages/java
javac algorithms-dsa/**/*.java
java -cp . algorithms.dsa.patterns.TwoPointers