Core Java Tutorial

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. This list is updated till Java-10 and soon it will be updated with the latest changes in Java-11 and beyond.

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 “Advanced Topics” section, I am sure you will find something worth reading.

Core Java Tutorial - Getting Started

2. Setting up Java in Windows OS
3. Writing your First Java Program
4. Java Method
5. Constructor in Java
6. Java Access Modifiers - public, protected, private and default
7. Java for loop
8. Java while loop
9. Java do while loop
10. Java static keyword
11. Java break keyword
12. Java continue keyword

Core Java Tutorial - Object Oriented Concepts

15. OOPS Concepts
16. Composition in Java
17. Inheritance in Java
18. Composition vs Inheritance in Java
19. Java Nested Classes

Core Java Tutorial - Data Types and Operators

22. Java Data Types, Primitives and Binary Literals
23. Java Autoboxing and Unboxing
24. Java Wrapper Classes
25. Java Ternary Operator

Core Java Tutorial - Interface, Abstract Class

28. Abstract Class in Java
29. Interface in Java
30. Difference between Abstract Class and Interface in Java

Core Java Tutorial - String Manipulation

33. Why String is immutable and final?
34. Understanding Java String Pool
35. Java String subsequence example
36. Java String compareTo example
37. Java String substring example
38. Converting String to char and vice versa
39. Java Split String example
40. String to byte array and vice versa
41. String to char array
42. Java String concatenation
43. String, StringBuffer and StringBuilder in Java
44. String Programs in Java

Core Java Tutorial - Arrays

47. Initializing an Array in Java
48. Two dimensional array in java
49. Java Array of ArrayList
50. String to String Array Example
51. Java Variable Arguments Explained
52. Java Array add elements
53. Sorting an Array in Java
54. Java String Array to String
55. Java ArrayList to Array
56. Converting Array to ArrayList in Java
57. How to copy arrays in Java

Core Java Tutorial - Annotation and Enum

60. Java Annotations Tutorial
61. Java @Override Annotation
62. Java Enum Example Tutorial

Core Java Tutorial - Collection & Generics

65. Java Collections Framework Tutorial
66. Java List
67. Java ArrayList
68. Java LinkedList
69. Java Set
70. Java HashSet
71. Java TreeSet
72. Java Map
73. Java HashMap
74. Java SortedMap
75. Java TreeMap
76. Java Queue
77. Java Stack
78. Java Iterator
79. Java ListIterator
80. Java PriorityQueue Example
81. Priority Queue Java
82. ArrayList vs CopyOnWriteArrayList
83. How to avoid ConcurrentModificationException when using an Iterator
84. Java Generics Example Tutorial

Core Java Tutorial - IO Operations

87. Create a New File in Java
88. Delete a File in Java
89. File separators in Java
90. Delete a Directory Recursively in Java
91. Rename and Move a File in Java
92. Getting File Size in Java
93. Get File Extension in Java
94. How to check if File exists in Java
95. How to check if File is a Directory in Java
96. How to get File last modified date in Java
97. Java FileNameFilter example to list specific files
98. Java File Path, Absolute Path and Canonical Path Explained
99. How to set File Permissions in Java
100. 4 ways to copy File in Java
101. Reading File in Java using BufferedReader, Scanner, Files
102. Java Scanner Class
103. Open a File in Java
104. Read a File to String in Java
105. Java Read file line by line
106. How to write a File in Java
107. How to append data to a File in Java
108. Converting InputStream to File
109. Java Random Access File Example
110. Download File from URL Example
111. Java GZip Example
112. Temp Files in Java
113. Reading a CSV File using Java Scanner Class
114. Java Property File Example

Core Java Tutorial - Exception Handling

117. Exception Handling in Java
118. java.lang.NoSuchMethodError
119. java.lang.NullPointerException

Core Java Tutorial - MultiThreading and Concurrency

122. Threads in Java
123. Thread Life Cycle
124. Thread Sleep Example
125. Thread join Example
126. Thread wait, notify, notifyAll Example
127. Thread Safety in Java - Synchronization
128. Java ThreadLocal Example
129. Java Timer and TimerTask Example
130. Java Thread Pool Example
131. Java Callable Future Example
132. Java FutureTask Example
133. Java ScheduledThreadPoolExecutor Example
134. Java Lock Example

Core Java Tutorial - Regular Expressions

137. Regular Expressions in Java Example Tutorial
138. Validating Email Address using Regular Expression in Java
139. Validating Phone Number using Regex in Java

Core Java Reflection API

142. Java Reflection API Tutorial

Java 7

145. String in switch case
146. Try with Resources - Java ARM
147. Binary Literals in Java
148. Underscores in Numeric Literals
149. Catching Multiple Exceptions in a single catch block
150. Java PosixFilePermission example to set File Permissions

Java 8

153. Java 8 Features Overview
154. Java 8 interface changes
155. Lambda Expressions in Java
156. Stream API in Java
157. Java Date Time API Example Tutorial
158. Java Spliterator

Java 9

161. Java 9 Features
162. Java 9 private method in interfaces
163. Java 9 try-with-resources improvements
164. Java 9 Optional class improvements
165. Java 9 Stream API improvements
166. Java 9 “var” for local variables
167. Java 9 “_” (underscore) changes
168. Java 9 Factory Methods for Immutable List
169. Java 9 Factory Methods for Immutable Set
170. Java 9 Factory Methods for Immutable Map
171. Java 9 Modules
172. Java 9 Module Basics Part 2
173. Develop Java Module using Command Prompt
174. Develop Java Module using Eclipse
175. Develop Java Module using IntelliJ IDEA

Java 10

178. Java 10 Features
179. Java 10 Local Variable Type Inference

Java 11

182. Java 11 Features
183. 6 New Methods in Java 11 String Class

Core Java Tutorial - Advanced Topics

186. Java Heap Memory and Stack Memory
187. Java is Pass by Value and not Pass by Reference
188. JVM Memory Model and Garbage Collection
189. Serialization in Java
190. Java System Class
191. Internationalization (i18n) in Java
192. Atomic Operations in Java
193. Thread Dump in Java
194. Deadlocks in Java
195. Sorting Objects in Java
196. Understanding JDK, JRE and JVM
197. Java Classloader Example Tutorial
198. 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