Java Development Skills

Java Language & Standard Library

• Language features
• Class, Object; Garbage Collection; Inheritance, Polymorphism, Interface; Nested Type; Package; Assertion; Generics; Enum; Exception; Annotation; Reflections;
• Data Manipulation API 
• Math; Random number; BigDecimal; BigInteger; String, Character, Regular Expression; Primitive Wrapper; Array; Collections; XML Processing;
• Development API 
• Internationalization; Preferences; References; JMX; JNI. 
• Systems and Network Programming API 
• System; GUI, Swing, AWT; File; JDBC; Threading (Thread & Lock); Concurrency; Networking - Protocols; Servlet, JSP; Web Services; JMS. 

Java Vital Techniques

• Concurrency
• Software Engineering: Maintainable, Replaceable Codebase, Modules
• Design Patterns
• Dependency Injection, Inversion Of Control
• AOP 
• AspectJ
• Modular Java 
• OSGi
• Software Oriented Architecture (SOA)
• Classfiles & Bytecodes
• Performance Tuning

Java Libraries & Frameworks

• Spring 
• Dependency Injection framework 
• Distributed Application Development
• Android 
• Mobile Application Development
• Play 
• Highly concurrent & distributed Rapid Web Application Development Framework
• Google Guice
• Dependency Injection framework.
• ActiveMQ
• Message broker. JMS Client. 
• Hadoop 
• Mapreduce framework for distributed data processing.
• Hive
• Pig
• HBase
• Mahout
• Hama
• Zookeeper
• Lucene

Java Software Development Tools

• Java Code Conventions
• Software Development Processes
• Automation: Productivity Increase
• Testing
• Unit Testing
• JUnit
• Mockito
• Integration, Functional, Load, Performance Testing
• Build 
• Maven
• Continuous Integration
• Jenkins
• Version Control
• Git
• Logging
• SLF4J
• Quality Metrics
• Issue Management
• Bugzilla
• Technical Documentation Tools

Polyglot Programming on JVM

• Scala
• Clojure