JournalDev

Java, Java EE, Android, Python, Web Development Tutorials

Home » Java » Core Java Tutorial

Core Java Tutorial

by 24 Comments

Welcome to Core Java Tutorial. I have written a lot on Core Java and Java EE frameworks. There was no index post for Core Java tutorial and I used to get emails asking to make one, so that any beginner can follow them and learn core java programming. Finally, I got time and here I am listing all the core java tutorial related posts that I think will help you in learning core java in no time.

Core Java Tutorial

core java tutorial
These core java tutorial assume that you have some basic knowledge of programming. These core java tutorial posts are not for someone who doesn’t know if-else blocks or for-loop etc. So why waste any more time, just read them in the below order and learn core java programming.

If you think you know all about java, just scroll below and read tutorials in “Advance Topics” section, I am sure you will find something worth reading.

    Core Java Tutorial – Getting Started

  1. Setting up Java in Windows OS
  2. Writing your First Java Program
  3. Java Access Modifiers – public, protected, private and default
  4. Java static keyword
  5. Java break keyword
  6. Java continue keyword

    7. Core Java Tutorial – Object Oriented Concepts

  7. Composition in Java
  8. Inheritance in Java
  9. Composition vs Inheritance in Java
  10. Java Nested Classes

    11. Core Java Tutorial – Data Types and Operators

  11. Java Data Types, Primitives and Binary Literals
  12. Java Autoboxing and Unboxing
  13. Java Wrapper Classes
  14. Java Ternary Operator

    15. Core Java Tutorial – Interface, Abstract Class

  15. Abstract Class in Java
  16. Interface in Java
  17. Difference between Abstract Class and Interface in Java

    18. Core Java Tutorial – String Manipulation

  18. Why String is immutable and final?
  19. Understanding Java String Pool
  20. Java String subsequence example
  21. Java String compareTo example
  22. Java String substring example
  23. Converting String to char and vice versa
  24. Java Split String example
  25. String to byte array and vice versa
  26. String to char array
  27. Java String concatenation
  28. String, StringBuffer and StringBuilder in Java

    29. Core Java Tutorial – Arrays

  29. Initializing an Array in Java
  30. Two dimensional array in java
  31. Java Array of ArrayList
  32. String to String Array Example
  33. Java Variable Arguments Explained
  34. Java Array add elements
  35. Sorting an Array in Java
  36. Java String Array to String
  37. Java ArrayList to Array
  38. Converting Array to ArrayList in Java
  39. How to copy arrays in Java

    40. Core Java Tutorial – Annotation and Enum

  40. Java Annotations Tutorial
  41. Java @Override Annotation
  42. Java Enum Example Tutorial

    43. Core Java Tutorial – Collection & Generics

  43. Java Collections Framework Tutorial
  44. Java PriorityQueue Example
  45. ArrayList vs CopyOnWriteArrayList
  46. How to avoid ConcurrentModificationException when using an Iterator
  47. Java Generics Example Tutorial

    48. Core Java Tutorial – IO Operations

  48. Create a New File in Java
  49. Delete a File in Java
  50. File separators in Java
  51. Delete a Directory Recursively in Java
  52. Rename and Move a File in Java
  53. Getting File Size in Java
  54. Get File Extension in Java
  55. How to check if File exists in Java
  56. How to check if File is a Directory in Java
  57. How to get File last modified date in Java
  58. Java FileNameFilter example to list specific files
  59. Java File Path, Absolute Path and Canonical Path Explained
  60. How to set File Permissions in Java
  61. 4 ways to copy File in Java
  62. Reading File in Java using BufferedReader, Scanner, Files
  63. Java Scanner Class
  64. Open a File in Java
  65. Read a File to String in Java
  66. Java Read file line by line
  67. How to write a File in Java
  68. How to append data to a File in Java
  69. Converting InputStream to File
  70. Java Random Access File Example
  71. Download File from URL Example
  72. Java GZip Example
  73. Temp Files in Java
  74. Reading a CSV File using Java Scanner Class
  75. Java Property File Example

    76. Core Java Tutorial – Exception Handling

  76. Exception Handling in Java

    77. Core Java Tutorial – MultiThreading and Concurrency

  77. Threads in Java
  78. Thread Life Cycle
  79. Thread Sleep Example
  80. Thread join Example
  81. Thread wait, notify, notifyAll Example
  82. Thread Safety in Java – Synchronization
  83. Java ThreadLocal Example
  84. Java Timer and TimerTask Example
  85. Java Thread Pool Example
  86. Java Callable Future Example
  87. Java FutureTask Example
  88. Java ScheduledThreadPoolExecutor Example
  89. Java Lock Example

    90. Core Java Tutorial – Regular Expressions

  90. Regular Expressions in Java Example Tutorial
  91. Validating Email Address using Regular Expression in Java
  92. Validating Phone Number using Regex in Java

    93. Core Java Reflection API

  93. Java Reflection API Tutorial

    94. Java 7 Features

  94. String in switch case
  95. Try with Resources – Java ARM
  96. Binary Literals in Java
  97. Underscores in Numeric Literals
  98. Catching Multiple Exceptions in a single catch block
  99. Java PosixFilePermission example to set File Permissions

    100. Java 8 Features

  100. Java 8 Features Overview
  101. Java 8 interface changes
  102. Lambda Expressions in Java
  103. Stream API in Java
  104. Java Date Time API Example Tutorial

    105. Core Java Tutorial – Advanced Topics

  105. Java Heap Memory and Stack Memory
  106. Java is Pass by Value and not Pass by Reference
  107. JVM Memory Model and Garbage Collection
  108. Serialization in Java
  109. Java System Class
  110. Internationalization (i18n) in Java
  111. Atomic Operations in Java
  112. Thread Dump in Java
  113. Deadlocks in Java
  114. Sorting Objects in Java
  115. Understanding JDK, JRE and JVM
  116. Java Classloader Example Tutorial
  117. Java clone object

Well, it’s a lot of reading material for core java tutorial. But if you think that I have missed out on something, please go ahead and comment below. I will write something on that and add that to the list.

Reference: Oracle JavaSE Tutorial

Comments

  6. Hello Pankaj

    I have one question regarding SEED in SecureRandom. what is mean by seed?
    Please help..

    thanks
    shashank

    Reply

  10. Hi Pankaj,

    Please do something for popup which ask to download paper or ebook. Once user download this then please disable these popup for them.

    Reply

  16. Hi Pankaj,

    You have done an excellent Job. Keep doing it as it helps us.
    Please provide tutorial for webservices. It would be great helpful for us.

    Thanks for sharing knowledge with us

    Thanks,
    Sowmya

    Reply

  18. Hi Pankaj,

    You have done an excellent Job!!!!! Keep doing it as it helps us.

    Thanks for sharing knowledge with us 🙂

    Reply

    • Hi Pankaj
      Please I want to ask you if your tutorials is enough to be a good java developer and to have the ability to crack interviews as a junior Developer

      Reply

  20. Pankaj is super java hero! Thank you, it’s really helpful set of mini-tutorials (excellent for revising before java interview).

    Reply

  21. Please provide a tutorial on primefaces push chat. We could not able to complete and we are hitting dead end everywhere.

    Reply

Leave a Reply

Your email address will not be published. Required fields are marked *