Java

1. Fundamentals
• Overview
• Basic Syntax
2. Data Types and Operators 
• Variables
• Data Types
• Basic Operators
• Numbers
• Characters
• String
• StringBuffer
• StringTokenizer
• String vs StringBuffer vs StringBuilder
3. Program Control Statements
• Decision Making
• Loops
• For
• While
• For Each 
• Do While
• Break
• Continue
4. Classes, Objects, and Methods
• Object & Classes
• Static Class
• Inner Class
5. Modifier Types
6. Arrays
7. Date & Time
8. Regular Expressions
9. Methods
• Method Overriding & Overloading
10. Files, Input and Output
• DataInputStream
• FileInputStream and FileOutputStream
• BufferedReader Class 
• FileReader Class 
11. Exceptions
12. Constructor
13. Inheritance
14. Polymorphism
15. Abstraction
16. Encapsulation
17. Interfaces
18. Multi Threading
• Synchronization
19. Data Structures
• Bubble Sort  
• Insertion Sort
20. Collections
• Overview
  
• List 
• ArrayList
• LinkedList 
• Vector
• Stack
• Set
• SortedSet
• NavigableSet 
• TreeSet
• HashSet
• LinkedHashSet
• Queue
• PriorityQueue
• BlockingQueue
• Map
• HashMap
• LinkedHashMap
• TreeMap
• Dictionary 
• HashTable 
• Properties
• Reading & Writing Properties File 
• Comparable Vs Comparator
• List vs Set
• HashMap vs HashTable 
• Property vs HashSet vs LinkedHashSet vs Set
21. Packages
22. Design Patterns
• Singleton Design Pattern
23. JDBC
• Select Record
• Insert Record
• Delete Record
• Create Table
• Drop Table
• Update Record
24. Java Doc 
25. XML
• XML Parsing 
• Create XML 
• Modify XML
• Query XML
26. Excel
• Apache POI
• Introduction
• Core Classes
• Read Data from Excel
27. Log4j
• Introduction
28. JSON
• Introduction
29. Web Services
• Introduction
30. Emails
• Sending HTML Email
31. Recipes
• Program to find missing numbers in array 
• Program to verify String is Palindrome or Not 
• Program to  Find First Two Max Values in Array
• Program to find 3rd largest number in array 
• Program to Sort the Array in an Ascending Order
• Program to display primary number from 1 to n 
• Program to count no. of occurrence of elements in array
• Program to count Occurrences of Elements in Array 
• Program to find duplicate elements in an array and print them
• Program to print factorial
• Program to print Fibonacci Series 
• Program to Sort List of Strings
• Program to Reverse A Number  
• Program to trim multiple spaces from a string
• Program to identify a number as Palindrome 
• Program to swap two numbers without using a temporary variable 
• Program to Reverse A String
• Program to replace SubString
• Program to find longest substring without repeating characters  
• Program to Implement Singly Linked List 
• Program to Reverse Singly Linked List 
•  Program to find out duplicate number between 1 to N numbers
• Program to convert string to number 
• Program to find two lines with max characters in descending order
• Program to get distinct word list from the given file
• Program to get a line with max word count from the given file
• Program to get distinct elements from an array by avoiding duplicate elements
• Program To Find Common Elements Between Two Arrays
• Program to Find Sum of Digits of a Number using Recursion
• Program to check armstrong number
• Program to convert binary to decimal
• Program To Check Whether Given Number Is Binary Or Not
• Program to Sort Map By Value
• Program to Find Duplicate Characters on String 
• Program to Find All Repeated Words In Text File And Their Occurrences
• Program to Convert Decimal Number to Binary Format
• Program to Find Perfect Number
• Program to Find out middle index where sum of both ends are equal
• Program to replace Sub String  
• Program to Remove All Vowels From String In Java?
32. Interview Questions
• Java