Java

• Java EE
• JDK, JRE, and JVM
• Java Virtual Machine
• Garbage Collection
• Abstract Class and Interface
• Overriding and Overloading
• String Pool
• equals() and hashCode() methods
• Differences between == Operator and equals() Method
• What happens if hashCode() method always returns the same value?
• final, finally, and finalize
• The Java Collection Framework Hierarchy
  • ArrayList and LinkedList
  • ArrayList and Vector
  • HashSet
  • HashMap
    • Internal Working of HashMap
    • Map.entry()
  • HashMap and Hashtable
• Handling Large Datasets in Java
• Iterator
• Checked and Unchecked Exceptions
• Java 8
  • Lambda Expressions
  • Create a Stream
  • Intermediate Operations
  • Terminal Methods
  • Default Methods
  • Optional
• 4 Concepts of OOP
  • Use Cases of Composition and Inheritance
• Threads
  • Thread Lifecycle
  • Thread Synchronization
• Writing Clean and Maintainable Code
  • SOLID Principles
  • Strategy Design Pattern
  • Optimizing Java Code
  • Ant Build System