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Core Java
Design Patterns

Learn to Automate


Core Java Training Course Details

Total Modules: 32

Core Java Basics

Training Video - 1

right_icon2Java Installations/Configurations

  • Topics
  • Java - What, Where and Why?
  • Difference between JDK,JRE and JVM
  • Installation of JDK/JRE
  • Setting/Verifying JAVA_HOME environment variable
  • Verifying java installation from command prompt
  • Download and configure eclipse for conding
  • Execute Java Program from command prompt

Training Video - 3

right_icon2Java Data Types, Operators and Arrays

  • Topics
  • Primitive variables and sizes
  • Identifiers
  • Casting of primitive data types
  • What are wrapper classes?
  • Difference between wrapper classes and primitive data types
  • Decide where to use primitive data types and where to use wrapper class
  • Different operators in Java
  • Which operator should be used in which situation
  • Equals method and == operator for string
  • Operator precedence
  • Creating and Using Arrays
  • Declare, instantiate, initialize and use a one-dimensional array
  • Declare, instantiate, initialize and use multi-dimensional array

Training Video - 4

right_icon2Java Variables

  • Topics
  • Variables
  • Scope of variables
  • Global variables
  • Local variables
  • Instance variables
  • How variable scope play thier role in method calling of different classes

Training Video - 2

right_icon2Loops and Statements-Decision Constructs

  • Topics
  • Create and use while loop
  • Create and use do-while loop
  • Create and use for loops including the enhanced for loop
  • Create and use do/while loop
  • how and where to use break and continue keyword
  • Create if and if/else and ternary constructs
  • Create and use switch statement

Object Oriented Programming Concepts

Training Video - 5

right_icon2Object Creation

  • Topics
  • What is Object
  • In how many ways objects can be created in java
  • Object Reference
  • Difference between object and object reference
  • Comparing object references
  • Creating Objects of pre-defined classes in java

Training Video - 8


  • Topics
  • What is inheritance and why do we use this concept in classes?
  • Inheritance with classes
  • Inheritance with interfaces
  • How access modifiers work with inheritance?
  • Use of this and super keywords to access objects and constructors.
  • Method Overloading-Polymorphism with Inheritance
  • Method Overiding-Polymorphism with Inheritance
  • Variable Hiding with inheritance
  • What is object casting, What makes that we need to caste objects and why a situation happens for cast objects?
  • Advantage of doing object casting
  • Inheritance and its benefits
  • Develop code that demonstrates the use of polymorphism-including overriding and object type versus reference type

Training Video - 11


  • Topics
  • What is encapsulation?
  • Apply encapsulation principles to a class

Training Video - 6

right_icon2Static - Non Static Fields/Method/Classes

  • Topics
  • What is static?
  • What is non Static or Instance?
  • When to use static variables?
  • How to use and how to define static functions and static global variables
  • How to use and how to define non-static functions and non-static variables
  • Pass by value and pass by reference with static variables/methods
  • Functions returning Object references
  • Why is main method static

Training Video - 9


  • Topics
  • What do we mean by Interfaces?
  • Why are they created and what kind of help do they provide?
  • How interfaces resolves the problem of multiple inheritances?
  • How interfaces are different from classes and abtract classes?

Training Video - 12

right_icon2Abstract classes

  • Topics
  • what are abstract classes and how are they different from interfaces?
  • why do we make class abstract?
  • How abstract classes are utilized with inheritance?
  • What other keywords can we use while implementing Abstraction?

Training Video - 7


  • Topics
  • What are constructors and how many times of constructors can be created?
  • What kind of help does constructors provide?
  • Constructor Overloading and use of default constructor
  • Difference between method and a constructor
  • Use of this and super keyword while accessing constructors

Training Video - 10


  • Topics
  • Compile Time and Run Time Polymorphism : What do we mean by that?
  • What help does it provide and why and how are they implemented?
  • What is method overloading and method overridding and what do we need to use this concept?
  • How objects helps overcome this problem?

Training Video - 13

right_icon2Object’s life cycle

  • Topics
  • What are objects, why do we create them amd what purpose does it solves?
  • How dereferencing of objects are being done and what is the concept of garbage collection?
  • When is object eligible for garbage collection
  • Memory management
  • Calling garbage collector
  • Calculating memory used/free memory

Access Modifiers, Wrapper Classes and Exception Handling

Training Video - 14


  • Topics
  • What do we mean by a package and what help does it provide?
  • How to create a package
  • Difference between a class and a package
  • How to import a package in a class or how to decide what classes are going to come within a package

Training Video - 16

right_icon2Working with Selected classes from the Java API

  • Topics
  • What are Wrapper classes and how are they different from primitive data types?
  • How autoboxing and unboxing is done with wrapper classes?
  • What are mutable and immutable classes?
  • Are wrapper classes and String class a immutable class?
  • What purpose or benefits a immutable class gives in comparison to mutable class
  • Can we create our own immutable class?
  • What is String, StringBuffer and a String Builder class and how are they different from each other?
  • Which one should be used - String, Styring Buffer, String Builder and in which scenarios?

Training Video - 17

right_icon2Exception Handling

  • Topics
  • What are Exceptions and how is this different from Error Class?
  • Why do we need to know about Exception classes?
  • How many types of Exception types are there and who can we distinguish them?
  • How throw and throws keyword help in handling exceptions?
  • How try and catch blocks help in handling Exceptions?
  • What are assertions and how is this different from Exception Handling
  • Develop code that handles multiple Exception types in a single catch block- latest jdk feature
  • Develop code that uses try-with-resources statements - latest jdk feature
  • Develop code that uses AutoCloseable interface - latest jdk feature
  • Create your own Exception class and use them in a program
  • Test invariants by using assertions
  • Show where Throwable class fits in the hierarchy
  • In the end, show the complete hierarchy of Exception and Error classes for thier better usage within code.

Training Video - 15

right_icon2Access modifiers

  • Topics
  • What are access modifiers and how many different types of access modifiers are there?
  • How are these access modifiers used, show them with examples?
  • Explain the concept of access modifier within package, outside package, with inheritance and without using inheritance
  • Explain access modifiers with classes, constructors, variables and interfaces.
  • How access modifier play major role in defining some of the design patterns as well?

Date, Time, InstanceOf, Enumeration and Nested Classes

Training Video - 18

right_icon2Classes from java.date, java.time and java.util packages

  • Topics
  • Why java.time package is introduced when we already had java.date and java.sql package with us before jdk1.6
  • Which major help has this package provided in date and time reslution in java programming?
  • Usage of java.time.LocalDateTime class, java.time.LocalDate and java.time.LocalTime class with examples
  • Use of java.time.ZoneId, java.time.ZonedDateTime with examples
  • Use of java.time.Instant and java.util.TimeZone class with examples
  • Use of java.util.TimeZone, java.time.DayOfWeek and java.time.LocalDateTime class with examples
  • Use of java.util.Date, java.util.Calendar, java.util.GregorianCalendar class with examples
  • Use of java.time.Period, java.time.Duration, java.time.temporal.TemporalAdjusters class with examples
  • Create and manipulate legacy classes like calendar class using classes from java.time.LocalDateTime, java.time.LocalDate, java.time.LocalTime, java.time.format.DateTimeFormatter and java.time.Period

Training Video - 19

right_icon2Java Class Design

  • Topics
  • What is instanceof keyword and what purpose does it provide in day to day programming
  • How instanceof keyword work with casting and how does nullable variables work with instanceof keyword?
  • Use virtual method invocation
  • What does hashCode, equals, and toString methods from Object do?
  • Override the hashCode, equals, and toString methods from Object class to improve the functionality of your class.

Training Video - 20

right_icon2Advanced Class Design

  • Topics
  • Identify when and how to apply abstract classes
  • Construct abstract Java classes and subclasses
  • Use of final keywords with classes, methods, variables and in interfaces.
  • Create top-level and nested classes
  • How many different types of nested classes are there and for what purpose are they used for?
  • What is enumeration type and show them with examples?
  • How is enumeration type different from iterator implemented classes?

Design Patterns, Generics. Comparator and Comparable Interface Implementation

Training Video - 21

right_icon2Object-Oriented Design Principles

  • Topics
  • Write code that declares, implements and/or extends interfaces
  • Choose between interface inheritance and class inheritance
  • Apply cohesion, low-coupling, IS-A, and HAS-A principles
  • Apply object composition principles (including has-a relationships)
  • Design a class using a Singleton design pattern
  • Write code to implement the Data Access Object (DAO) pattern
  • Design and create objects using a factory pattern

Training Video - 22


  • Topics
  • What are Generics and when were they really introduced in jdk?
  • In which version of jdk were they re-introduced and for which classes/interfaces were they actually designed for?
  • What help does the concept of Generics actually provided?
  • How generics are being used with classes, interfaces, methods, constructors and anonymous classes?
  • Where all generics cannot be used in Java
  • Show this with examples?
  • What are wildcards in generics?
  • What is unbouned
  • What is Unbounded wildcard parameterized type in java?
  • What are lower bound and upper bounded wildcard parameterized types in Generics?
  • What is typer inference and what is the use of diamond operator or angular bracket for type inference?
  • Analyze the interoperability of collections that use raw types and generic types?
  • Use wrapper classes, autoboxing and unboxing with generics?

Lambda Expressions and String Processing

Training Video - 23

right_icon2Lambda Expressions

  • Topics
  • What are lamdba expressions and how are they different from lets say regular expressions in java
  • What are the rules that we need to follow to use Lambda expressions for ex. with zero paramters or with one parameter etc.
  • What are functional Interfaces and what are Anonymous classes in Java?
  • How is function body defined while using lambda expressions?
  • What are the important characteristics of using Lambda Expressions
  • Thread Implementation with Lambdas
  • Callable Interface implementation using lambdas
  • How to use Lamdba using forEach statement
  • WHat is method reference and how it is used with lambdas
  • How to sort using lambdas
  • How to synchronize using lambdas
  • How to serialize using lambdas

Training Video - 24

right_icon2String Processing

  • Topics
  • Search, parse and build strings (including Scanner, StringTokenizer, StringBuilder, String and Formatter)
  • Search, parse, and replace strings by using regular expressions, using expression patterns for matching limited to: . (dot), * (star), + (plus), ?, \d, \D, \s, \S, \w, \W, \b. \B, [], ().
  • Format strings using the formatting parameters: %b, %c, %d, %f, and %s in format strings.

Collections, Data Structures and Algorithms

Training Video - 25


  • Topics
  • Use of List implemented classes(ArrayList, Vector, Stack, LinkedList classes) with examples and differences between them.
  • Difference between Array and ArrayList or Vector and ArrayList with examples and conversion of Array or Vector to Arraylist or linked lst with examples
  • Use of Set interface implemented classes(HashSet, TreeSet, LinkedHashSet classes) with examples and differences between them.
  • Difference between HashSet and TreeSet or difference btween List implemented classes and Set implemented classes with examples.
  • Use of Map implemented classes(HashMap, HashTable, LinkedHashMap and TreeMap classes) with examples and differences between them.
  • Difference between ArrayList and hashMap with examples and how to synchronize, sort and serialize HashMaps
  • Difference between list and set implemented classes with map implemented classes.
  • Explain Array and LinkedList representation of Queues.
  • Explain how sort, search, traversal, insertion, removal happens within list, set and map implemented classes
  • Explain how single linked list and doubly linked list differs from each other with examples

Training Video - 26

right_icon2Data Structures and Algorithms

  • Topics
  • Explain Bubble Sort data structure and the algorithm involved behind it with examples
  • Explain Deque data structure and the algorithm involved behind it with examples
  • Explain Insertion Sort data structure and the algorithm involved behind it with examples
  • Explain Quick Sort data structure and the algorithm involved behind it with examples
  • Explain Merge Sort data structure and the algorithm involved behind it with examples
  • Explain Selection Sort data structure and the algorithm involved behind it with examples
  • Explain Stacks data structure and the algorithm involved behind it with examples

Java I/O Fundamentals with latest NIO concepts

Training Video - 27

right_icon2Java I/O Fundamentals - Part A

  • Topics
  • Read and write data from the console using System.in class
  • Usage of readers amd writers to read and write data to files using classes from java.io package(BufferedReader and BufferedWriter class)
  • Usage of streams to read and write data to files using classes from java.io package(DataInputStream, DataOutputStream, ObjectInputStream, ObjectOutputStream and PrintWriter classes)
  • Why File, FileReader, FileWriter objects are necessary for all I/O connections and how these API's are used with other classes?
  • What kind of exception can these classes throw and how to handle them?
  • What were the problems with the above classes and how new JAVA.NIO paackage resolves in terms of java filing.

Training Video - 28

right_icon2Java I/O Fundamentals - Part B

  • Topics
  • How file and directory paths are assigned using Path class in java filing code.
  • How to verify, delete, copy or move files or directories with the help of Files class.
  • Read, change file and directory attributes, focusing on the BasicFileAttributes, DosFileAttributes, and PosixFileAttributes interfaces.
  • Recursively access a directory tree using the DirectoryStream and FileVisitor interfaces.
  • Find file on servers using PathMatcher interface and what all attributes this API provides?
  • Watch a directory for changes with the WatchService interface - what kinds of benefit does it provide?
  • What kind of exceptions can the classes from java.NIO package throw and how to handle them?

Multi Threading

Training Video - 29


  • Topics
  • How to create threads using Thread class and how to use those created threads using start and run method
  • How to create threads using Runnable Interface and how to use those created threads using start and run method
  • What is the difference between thread created using Thread class and Runnable Interface and which one should be preferred?
  • How to manage and control thread lifecycle
  • Explain Join method with threads with examples
  • What is synchronize keyword, how should we use this and what kinds of benefit does it provide?
  • What is synchronize block and how is it different from sychronized method?
  • What does Executor and ExecutorService Interface do and what kind of benefit does it provide?
  • What all methods does Executor and Executor Service method provides and what does those methods provide for multi threaded application?
  • What is the default method of Executor and Executor Service interface that needs to be implemented?
  • What do we mean by Callable and Future interface and how does these interfaces help in multi threaded application?
  • Explain different methods of Callable and Future interface that are extensively used with Executor and Executor Service interface?
  • What does ScheduledExecutorService do and how is it different from Executor and ExecutorService interfaces?
  • Explain different methods of ScheduledExecutorService interface that work with multi threaded application?
  • Explain invokeAll method with Callable, Future and ExecutorService interfaces with examples?
  • Explain invokeAny method with Callable, Future and ExecutorService interfaces with examples?

Training Video - 30


  • Topics
  • Explain Fork Pool Join Interface and what does this mean, how does this interace help in multi threaded application?
  • What are Locks and what kind of work do they do for multi threaded application?
  • What is Lock Interface and what kinds of methods does this provide and what do these methods do with examples?
  • What is ReentrantLock lock interface and what kind of methods does this interface provide, explain them with examples?
  • What is ReentrantReadWriteLock lock interface and what kind of methods does this interface provide, explain them with examples?
  • What is StampedLock lock interface and what kind of methods does this interface provide, explain them with examples?
  • What is Semaphore class in multi threaded application and what kind of methods does this interface provide, explain them with examples?


Training Video - 31

right_icon2Localization Concepts

  • Topics
  • What is the purpose of defining Locale object or what help does this Locale object provide to the application or business requirements?
  • Explain different ways of creating Locale object and how each one is different from one another and which one way is most preferrable?
  • Explain the need of creating different properties files for specifying different Locale information on application?
  • Mention where Locale specific property files should be placed within the project?
  • What is ResourceBundle API and what help does it provide?
  • Explain getISOCountries method of Locale class that tells how to gather Locale information for each country?
  • Explain Builder, setLanguage, setRegion and build method do for Locale objects and what help does it provide?
  • Explain forLanguageTag method for Locale object with examples?
  • Explain getDefault, getAvailableLocales, getDisplayName, getLanguage, getDisplayLanguage, getCountry, getDisplayCountry, getScript, getDisplayScript, getVariant and getDisplayVariant method of Locale class
  • Format dates, numbers, and currency values for localization with the NumberFormat and DateFormat classes (including number format patterns).
  • Explain getInstance, getCurrencyInstance
  • Explain Currency class, getInstance, getDisplayName, getCurrencyCode methods of Currency class.
  • Explain DateFormat, getDateInstance, NumberFormat, getInstance methods and class and its relation with Locale class.

Database Connection

Training Video - 32

right_icon2Understanding JDBC/Building Database Applications with JDBC

  • Topics
  • Explain how many different types of connections can Java based application create with database?
  • Explain does the databases like MongoDB, DB2, Oracel, SQL+ matter in relation to the Java-DB connectivity?
  • Explain what kind of benefirts does JDBC connection do for the java based application?
  • Explain what class.forName API does for java-jdbc connection and till what version of jdk do we need to configure connectivity using this API?
  • Describe the interfaces that make up the core of the JDBC API (including the Driver, Connection, Statement, and ResultSet interfaces and their relationship to provider implementations)
  • Identify the components required to connect to a database using the DriverManager class (including the jdbc URL)
  • Submit queries and read results from the database (including creating statements, returning result sets, iterating through the results, and properly closing result sets, statements, and connections)
  • Construct and use RowSet objects using the RowSetProvider class and the RowSetFactory interface
  • Explain all the new API's, the latest releases of jdk has provided in relation to JDBC-ODBC connectivity?
  • Explain what interfaces like Statement, PreparedStatement and CallableStatement does and show thier usage with examples?
  • Explain what does arguments like TYPE_SCROLL_INSENSITIVE, TYPE_SCROLL_SENSITIVE, TYPE_FORWARD_ONLY, CONCUR_READ_ONLY, CONCUR_UPDATABLE, CLOSE_CURSORS_AT_COMMIT, HOLD_CURSORS_OVER_COMMIT etc. with DatabaseMetaData, getMetaData and supportsResultSetType methods help while creating resultset object and explain them with examples?
  • Explain the flaws of ResultSet interface which RowSet has resolved, which one is more preferrable and why?
  • Explain what is exactly connected and disconnected rowset means and how five kinds of RowSet actually differentiate from each other?
  • Explain JdbcRowSet,JdbcRowSetTest resultset type with JdbcRowSetImpl with methods like last, updateRow, moveToInsertRow, deleteRow, beforeFirst etc.
  • Explain RowSetFactory, JdbcRowSet, createJdbcRowSet and thier respective methods with examples?
  • Use JDBC transactions (including disabling auto-commit mode, committing and rolling back transactions, and setting and rolling back to savepoints)
  • Explain CachedRowSet rowset with examples?
  • Explain JoinRowSet, RowSetProvider.newFactory method with examples/li>
  • Explain CachedRowSet rowset, RowSetProvider.newFactory methods with examples
  • Explain WebRowSet rowset, WebRowSetImpl do with examples?
  • Explain classes like CachedRowSet rowset, CachedRowSetImpl, WebRowSetImpl and methods like moveToCurrentRow methods do with examples?
  • Explain what help does FilteredRowSet interface provide and show them with exampls

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