Core Java

Welcome to Core Java Tutorials, this page is for beginners and also for the those who refers any Online notes for their college notes or for professionals in their projects. hopefully it will be helpful to all those who try to seek for good programming knowledge and easy understanding to concepts. In this Blog/naiveprogramming page I'll try to explain till Java 8 and it's main features that are been added.

Table of Contents

Core Java Tutorial  Core Java Tutorial – Getting Started  Core Java Tutorial – Object Oriented Concepts  Core Java Tutorial – Data Types and Operators  Core Java Tutorial – Interface, Abstract Class  Core Java Tutorial – String Manipulation  Core Java Tutorial – Arrays  Core Java Tutorial – Annotation and Enum  Core Java Tutorial – Collection & Generics  Core Java Tutorial – IO Operations  Core Java Tutorial – Exception Handling  Core Java Tutorial – MultiThreading and Concurrency  Core Java Tutorial – Regular Expressions  Core Java Reflection API  Java 7  Java 8

Core Java Tutorial 

Let us assume in the core java you don't have basic understanding of the concepts and knowledge of the programming. Those you haven't learn how to use if-else loop, while or do while loops etc. while performing any programming.

Let's get going and start reading the concepts and start programming.

Core Java Tutorial – Getting Started

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

Core Java Tutorial – Object Oriented Concepts

1. OOPS Concepts
2. Composition in Java
3. Inheritance in Java
4. Composition vs Inheritance in Java
5. Java Nested Classes

Core Java Tutorial – Data Types and Operators

6. Java Data Types, Primitives and Binary Literals
7. Java Autoboxing and Unboxing
8. Java Wrapper Classes
9. Java Ternary Operator

Core Java Tutorial – Interface, Abstract Class

10. Abstract Class in Java
11. Interface in Java
12. Difference between Abstract Class and Interface in Java

Core Java Tutorial – String Manipulation

13. Why String is immutable and final?
14. Understanding Java String Pool
15. Java String subsequence example
16. Java String compareTo example
17. Java String substring example
18. Converting String to char and vice versa
19. Java Split String example
20. String to byte array and vice versa
21. String to char array
22. Java String concatenation
23. String, StringBuffer and StringBuilder in Java
24. String Programs in Java

Core Java Tutorial – Arrays

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

Core Java Tutorial – Annotation and Enum

36. Java Annotations Tutorial
37. Java @Override Annotation
38. Java Enum Example Tutorial

Core Java Tutorial – Collection & Generics

39. Java Collections Framework Tutorial
40. Java List
41. Java ArrayList
42. Java LinkedList
43. Java Set
44. Java HashSet
45. Java TreeSet
46. Java Map
47. Java HashMap
48. Java SortedMap
49. Java TreeMap
50. Java Queue
51. Java Stack
52. Java Iterator
53. Java ListIterator
54. Java PriorityQueue Example
55. Priority Queue Java
56. ArrayList vs CopyOnWriteArrayList
57. How to avoid ConcurrentModificationException when using an Iterator
58. Java Generics Example Tutorial

Core Java Tutorial – IO Operations

59. Create a New File in Java
60. Delete a File in Java
61. File separators in Java
62. Delete a Directory Recursively in Java
63. Rename and Move a File in Java
64. Getting File Size in Java
65. Get File Extension in Java
66. How to check if File exists in Java
67. How to check if File is a Directory in Java
68. How to get File last modified date in Java
69. Java FileNameFilter example to list specific files
70. Java File Path, Absolute Path and Canonical Path Explained
71. How to set File Permissions in Java
72. 4 ways to copy File in Java
73. Reading File in Java using BufferedReader, Scanner, Files
74. Java Scanner Class
75. Open a File in Java
76. Read a File to String in Java
77. Java Read file line by line
78. How to write a File in Java
79. How to append data to a File in Java
80. Converting InputStream to File
81. Java Random Access File Example
82. Download File from URL Example
83. Java GZip Example
84. Temp Files in Java
85. Reading a CSV File using Java Scanner Class
86. Java Property File Example

Core Java Tutorial – Exception Handling

87. Exception Handling in Java
88. java.lang.NoSuchMethodError
89. java.lang.NullPointerException

Core Java Tutorial – MultiThreading and Concurrency

90. Threads in Java
91. Thread Life Cycle
92. Thread Sleep Example
93. Thread join Example
94. Thread wait, notify, notifyAll Example
95. Thread Safety in Java – Synchronization
96. Java ThreadLocal Example
97. Java Timer and TimerTask Example
98. Java Thread Pool Example
99. Java Callable Future Example
100. Java FutureTask Example
101. Java ScheduledThreadPoolExecutor Example
102. Java Lock Example

Core Java Tutorial – Regular Expressions

103. Regular Expressions in Java Example Tutorial
104. Validating Email Address using Regular Expression in Java
105. Validating Phone Number using Regex in Java

Core Java Reflection API

106. Java Reflection API Tutorial

Java 7

107. String in switch case
108. Try with Resources – Java ARM
109. Binary Literals in Java
110. Underscores in Numeric Literals
111. Catching Multiple Exceptions in a single catch block
112. Java PosixFilePermission example to set File Permissions

Java 8

113. Java 8 Features Overview
114. Java 8 interface changes
115. Lambda Expressions in Java
116. Stream API in Java
117. Java Date Time API Example Tutorial
118. Java Spliterator