JAVA Lang Specs

• Access modifiers
  • Same class
  • Same package and subclass
  • Same package and non-subclass
  • Different package and subclass
  • Different package and non-subclass
• Abstract class
  • Methods in abstract class
    • Abstract
    • Non-abstract
  • Fields in abstract class
    • Non-static and non-final
    • Final
    • Static
    • Static final
  • Constructors in abstract class
    • Constructor in abstract class
    • Usage of constructor in non-abstract class
  • Abstract class vs interface
• Interface
  • Fields in interface
  • Constructors in interface
  • Methods in interface
  • Abstract class vs interface
• Inner class
  • Anonymous inner class
  • Local inner class
  • Nested inner class
  • Static inner class
• Sealed class
• Static keyword
  • Static blocks
  • Static variables
  • Static methods
  • Static class
• Final keyword
  • Final variables
  • Final methods
  • Final class
• Generic class
  • Sigle type
  • Multiple types
• Transient keyword
• Method hiding
  • Instance method in subclass
  • Static method in subclass
  • The method of object
  • The method of class type
• Super
  • Calling superclass constructor
  • Access superclass method variable
• This
  • Constructor overloading
• Dynamic Method Dispatch
• Enum
  • Enum for-loop
  • Enum if-else
  • Enum switch case