Java

Theory

• I. Basic course Java

  • 1. Java. General concepts
  • 2. Data types. Literals. Keywords. Variables
    • 2.1. Data types. Primitive data types. Wrapper types
    • 2.2. Literals. Identifiers. Keywords. Comments
    • 2.3. Variables. Declaring variables. Initialization of variables
    • 2.4. Converting of types. Automatic type cast in expressions. Automatic advancement in expressions
  • 3. Operations
    • 3.1. Arithmetic operations
    • 3.2. Logical operations. Operation of relation. Bitwise logical operations
    • 3.3. Assignment operation ‘=’. Ternary operation ?:. Priority of operations
    • 3.4. Operations on objects. The operation of assigning object =. Object comparison operations ==, !=
  • 4. Control operators (statements)
    • 4.1. Conditional jump operator if
    • 4.2. The selection operator ‘switch’. Nested ‘switch’ statements
    • 4.3. The if-else-if statement
    • 4.4. Loops for, while, do..while. Examples of use. Solving of tasks using loops
    • 4.5. Extended for loop. General form. Examples. Processing arrays, collection of objects ArrayList, LinkedList
    • 4.6. Operators break, continue. Examples of using
  • 5. Arrays
    • 5.1. One-dimensional arrays
    • 5.2. Two-dimensional and multi-dimensional arrays
    • 5.3. Irregular arrays
  • 6. Strings
    • 6.1. Strings. Part 1
    • 6.2. Strings. Part 2
    • 6.3. Arrays of strings. One-dimensional and two-dimensional arrays. Initialization. Examples
  • 7. Classes. Methods in classes
    • 7.1. Classes and objects
      • 7.1.1. The use of classes in Java programs. Class and object definition. Examples
      • 7.1.2. Creating and saving the objects of classes. Areas of data storage in memory. Using an arrays of references to objects
      • 7.1.3. Scope of objects. Deleting objects. The advantages of using the “garbage collection” approach for objects
    • 7.2. Constructors
      • 7.2.1. Constructors. Parameterized constructors. The keyword ‘this’. Garbage collection. The finalize() method. Examples
      • 7.2.2. Default constructor. Calling class constructors from others constructors
    • 7.3. Initialization in classes
      • 7.3.1. Initialize variables in class methods. Initialization of data members of the class
      • 7.3.2. Initialization of static data members. Static block. Arrays initialization 
    • 7.4. Class methods
      • 7.4.1. The concept of the method. General form. Method parameters. Returning from method. Operator return. Return an object from a method. Examples of methods
      • 7.4.2. Methods. Passing parameters into methods of the class. Passing the primitive data types variables into a method as a parameter
      • 7.4.3. Overloading of methods in classes. Overloading of constructors
      • 7.4.4. Variable length arguments in methods
      • 7.4.5. Recursion
        • 1. Recursion. Examples of tasks solving. Advantages and disadvantages of recursion
        • 2. Examples of tasks solving on recursion in Java programming language
    • 7.5. Using the keyword ‘static’. Static data members of the class. Static methods of the class
    • 7.6. Specifier final. Immutable (constant) data, methods, classes. Empty constants. Static immutable data. Inline methods
  • 8. Nested classes
    • 8.1. Nested classes and inner classes. Static nested classes. Example
    • 8.2. Creating the objects of nested static and non-static classes. Constructions .this, .new
    • 8.3. Examples of use of inner classes in conjunction with interfaces. Downward and upward conversion. The advantages of using upward conversion
  • 9. Encapsulation. Access control. Packages
    • 9.1. Encapsulation in class. Access control in class. Modifiers private, protected, public
    • 9.2. Packages. Using packages in Java. Directives import and package. Compiled modules (.java). Intermediate .class files. Project structure. Using standard Java libraries
    • 9.3. Controlling access to classes in packages. Package level access to the class. Public class access level
  • 10. Inheritance in classes. Polymorphism
    • 10.1. Reusing code in Java. The concept of composition, inheritance, delegation. The keyword extends. Examples
    • 10.2. Inheritance. Basic concepts. Superclass and subclass. The keyword ‘extends’. Hiding data in derived classes. Access modifiers private, protected, public
    • 10.3. Inheritance. A reference to a subclass object. Calling the superclass constructor. The keyword super
    • 10.4. Overriding and overloading inherited methods. Examples. Dynamic dispatch of methods. Polymorphism
  • 11. Abstract classes. Interfaces
    • 11.1. Abstract classes. Abstract methods. Keyword abstract. Examples
    • 11.2. Interfaces. Features of use in combination with classes. The advantages of using interfaces. Keywords interface, implements. Examples
  • 12. Exceptions
    • 12.1. Exceptions. Keywords try, catch, finally. Examples
    • 12.2. Operators throw, throws. Examples
    • 12.3. Java classes for handling exceptions from the java.lang package. Methods of Throwable class. Examples
    • 12.4. Class Exception. Create custom exception classes. Examples
  • 13. Enumerations. Autoboxing. Annotations
    • 13.1. Enumerations. Keyword enum. Examples
    • 13.2. Using enums as classes. Examples of declaring enumerations containing constructors, internal fields, methods
    • 13.3. Autoboxing and unboxing. General concepts. Using in assignment (=) and in methods. Examples
    • 13.4. Autoboxing and unboxing in expressions and the switch statement. Using autoboxing and unboxing values for boolean and char types
  • 14. I/O System in Java. Working with files
    • 14.1. Java I/O system. Streams. Byte streams. Character streams. Standard streams
    • 14.2. Work with the console. Classes InputStreamReader, PrintStream. Creating an input/output stream associated with the console. Redirecting input/output streams
    • 14.3. Work with files in Java. Class File. Basic working methods
    • 14.4. Byte streams. Classes DataInputStream, DataOutputStream, FileInputStream, FileOutputStream. Examples of using
    • 14.5. Examples of implementation of operations that modify text files. Classes FileReader, FileOutputStream, PrintStream
    • 14.6. Automatic file closure. The statement try with resources. Examples
    • 14.7. Serialization of objects. The transient keyword. Examples
  • 15. Generalizations
    • 15.1. Generalizations. Parameterized types. Generic classes, interfaces, methods
    • 15.2. Ensuring type safety by using generalizations. Generalized interfaces. Examples
    • 15.3. Limited types. Metacharacter arguments. Examples
  • 16. Additional Java features
    • 16.1. The instanceof operator. Determining the type of object. Examples
  • 17. Lambda expressions. Functional interfaces. Method references
    • 17.1. Lambda expressions. Basic concepts. Functional interface. Examples
    • 17.2. Lambda expressions for generic functional interfaces. Examples 
    • 17.3. Passing a lambda-expression to a method as a parameter. Examples
    • 17.4. Throwing exceptions in lambda expressions. Examples
    • 17.5. Accessing class members from a lambda expression. Capturing variables in lambda expressions. Examples
    • 17.6. Types of method references. Reference to static method. Reference to instance method
    • 17.7. Reference to the class constructor
    • 17.8. Standard (predefined) functional interfaces of Java language
  • 18. Data streams. Stream API
    • 18.1. Data streams. Stream API. General information
    • 18.2. The concept of final and intermediate operations. Examples. Methods stream(), parallelStream()
    • 18.3. The BaseStream interface. Examples of using interface methods
    • 18.4. Interface Stream<T>. Intermediate interface methods: filter(), map(), mapToDouble(), mapToInt(), mapToLong(), sorted(). Examples
    • 18.5. Interface Stream<T>. Final methods collect(), count(), forEach(), max(), min(), reduce(), toArray()
  • 19. Threads
    • 19.1. Multitasking. Threads of execution. Basic concepts
    • 19.2. Java language tools for working with threads of execution. Thread class. Runnable interface. Main thread of execution. Creating a child thread
    • 19.3. Methods of the Thread class: getName(), start(), run(), sleep(). Examples
    • 19.4. Methods of the Thread class: join(), isAlive(), getPriority(), setPriority(). Examples
    • 19.5. Synchronization. Monitor. General concepts. The synchronized keyword
    • 19.6. Interaction between threads. Methods wait(), notify(), notifyAll(). Examples
    • 19.7. The state of the thread of execution. The getState() method. Example

• II. Java library

  • 1. The java.lang package
    • 1.1. The java.lang package. General information. Overview of classes and interfaces
    • 1.2. Methods of java.lang package
      • 1.2.5. Class Character
        • 1.2.5.1. Class Character. Review of methods and constants. Class constructor
        • 1.2.5.2. Class methods determine whether a symbol belongs to a given category. Methods isDigit(), isIdentifierIgnorable(), isLowerCase(), isSpace(), isUpperCase(), isWhiteSpace()
      • 1.2.11. Class Enum. Methods: clone(), compareTo(), getDeclaringClass(), hashCode(), name(), ordinal(), toString()
      • 1.2.16. Class Math
        • 1.2.16.1. Class Math. Overview. Trigonometric functions
        • 1.2.16.2. Exponential functions
        • 1.2.16.3. Rounding functions
  • 2. The java.util package
    • 2.1. Java Collection Framework
      • 2.1.1. Introduction to Java Collection Framework
      • 2.1.2. Class ArrayList
        • 2.1.2.1. Class ArrayList. Dynamic array. General information. Creating an array
        • 2.1.2.2. Methods that change data in the array. Methods add(), addAll(), clear(), remove(), removeAll(), removeIf(), replaceAll(), set(), sort()
        • 2.1.2.3. Methods that define information about array elements. Methods get(), contains(), containsAll(), indexOf(), lastIndexOf(), iterator(), listIterator()
        • 2.1.2.4. Methods that determine general characteristics of the array. Methods ensureCapacity(), isEmpty(), size(), trimToSize()
        • 2.1.2.5. Methods that transform the array as whole. Methods clone(), sublist(), toArray(), retainAll()
    • 2.14. Class Random
      • 2.14.1. Class Random. Generating random numbers. List of methods. Methods for obtaining single random numbers: setSeed(), nextBoolean(), nextDouble(), nextFloat(), nextGaussian(), nextInt(), nextLong() 
      • 2.14.2. Methods for obtaining sets of random numbers. Methods doubles(), ints(), longs(), nextBytes()

Practice

• 1. Developing classes
  • 1.1. Developing a generic class that contains tools for implementing linear search
  • 1.2. Developing a generic class that implements the selection sorting algorithm
• 2. Stream API
  • 2.1. Examples of solving tasks on data streams
  • 2.2. Examples of solving tasks on data streams, which are objects of the developed classes
• 3. Solving tasks. Examples
  • Examples of solving tasks on threads of execution (Threads). Working with files in streams. Sorting in streams
• 4. JUnit
  • JUnit testing. Examples

  ⇑

---