Javascript

1. What is Java?
2. History and Features of Java
3. C++ vs Java
4. Hello Java Program
5. Internal How to set the path?
6. JDK, JRE, and JVM (Java Virtual Machine)
7. JVM Memory Management
8. Internal details of JVM
9. Unicode System, Operators, Keywords
10. Control  Statements like if-else, switch, For loop,while loop, etc.
11. Class, Object, and Types of classes

1. Classes, Objects, and Features. It explains how to declare a class, how       to create an object in Java.
2. Object declaration and initialization
3. Life cycle of an object
4. Anonymous object in Java
5. Class and Objects in Java with Realtime Example

1. How to declare package in a company project
2. Package naming conventions
3. Sub packages
4. Types of packages such as user-defined packages, built-in packages
5. Importing packages in Java
6. Packages in Java with Example Programs

1. Primitive data types
2. Non-primitive data types
3. Memory allocation of primitive and non-primitive data types, etc.

1. Variable declaration & initialization
2. Naming convention
3. Types of variables such as local variables, instance variables, and static variables
4. Scope and memory allocation of variables.
5. Variables in Java | Types of Variables

1. Use of method in Java
2. Method declaration, method signature
3. Types of methods in Java: predefined method,user-defined methods:       instance method, static method
4. Calling of method
5. Java main method
6. Return type in Java.
7. Java Methods | Declaration & Method Signature

1. What is Constructor in Java?
2. Types of constructors: Default and Parameterized constructors
3. Java constructor overloading
4. Constructor chaining in java
5. Copy constructor in Java

1. What is Access modifier and Non-access modifier in Java?
2. Types of access modifiers like
   1. private
   2. default
   3. protected
   4. public
3. Types of Non-access modifiers like abstract, final, native, static, Strictfp, synchronized modifier, transient, volatile.

1. What is Static keyword?
   1. Static variable
   2. Static method
2. Static block
3. Instance block
4. Static Nested Class in Java
5. Difference between varibles
   1. static variable
   2. instance variable
   3. static method
   4. instance method
   5. static block
   6. instance block.

1. Final keyword
2. Final variable
3. Final method
4. Final class.

1. What is Inner class in Java?, Properties of inner class, Instantiating inner class.
2. Types of inner class in Java:
   1. Normal inner class,
   2. Method local inner class,
   3. Anonymous inner class,
   4. Static nested class.

1. Super keyword
2. Calling of superclass instance variable
3. Superclass constructor
4. Superclass method.
5. This keyword
6. Calling of current class constructor, and method.

Encapsulation

1. Encapsulation in Java
2. How to achieve Encapsulation
3. Data hiding
4. Tightly encapsulated class
5. Getter and setter method in Java
6. Naming convention of getter and setter method

Inheritance

1. 1. Inheritance in Java
   2. Is-A Relationship
   3. Aggregation and Composition(HAS-A)
   4. Types of inheritance:
      1. Single level,
      2. Multilevel,
      3. Hierarchical,
      4. Multiple,
      5. Hybrid inheritance.

Polymorphism

1. 1. Types of polymorphism:
      1. Compile-time polymorphism
      2. Run-time polymorphism
   2. Static and Dynamic Binding4
   3. Method overloading
   4. Method overriding
   5. Rules of method overloading and method overriding, various  example programs related to rules of overloading and overriding.
   6. Covariant Return type

Abstraction

1. 1. Abstraction in Java
   2. Abstract class
   3. Abstract method
   4. Interface in Java
   5. Nested interface, rules, and example programs.
   6. Garbage Collection

1. FileOutputStream, FileInputStream
2. BufferedOutputStream, BufferedInputStream
3. SequenceInputStream
4. ByteArrayOutputStream, ByteArrayInputStream
5. DataOutputStream, DataInputStream
6. Java FilterOutputStream, Java FilterInputStream
7. Java ObjectStream, Java ObjectStreamField
8. Console
9. FilePermissionWriter, Reader, FileWriter, FileReader
10. BufferedWriter, BufferedReader
11. CharArrayReader, CharArrayWriter
12. PrintStream, PrintWriter
13. OutputStreamWriter, InputStreamReader
14. PushbackInputStream, PushbackReader
15. StringWriter, StringReader
16. PipedWriter, PipedReader
17. FilterWriter, FilterReader, File FileDescriptor, RandomAccessFile, and util.Scanner.

1. What is Collections Framework?
2. List, Set, SortedSet, Queue, Deque, Map, Iterator, ListIterator, and Enumeration.
3. ArrayList, LinkedList, HashSet, LinkedHashSet, TreeSet, ArrayDeque, PriorityDeque, EnumSet, AbstractCollection, AbstractList, AbstractQueue, AbstractSet, and AbstractSequentialList.
4. Map, Map Entry, SortedMap, and NavigableMap
5. HashMap, LinkedHashMap, TreeMap, IdentityHashMap, WeakHashMap, and EnumMap.
6. Comparator, RandomAccess interfaces as well as Observable class.
7. Serialization

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1. Exception Handling in Java
2. Try-catch block
3. Multiple Catch Block
4. Nested try block
5. Finally block
6. Throw Keyword
7. Throws Keyword
8. Throw vs Throws, Final vs Finally vs Finalize
9. Exception Handling with Method Overriding Java Custom Exceptions

1. Reflection in Java
2. Reflection API
3. NewInstance() & Determining the class object
4. Javap tool, Creating javap tool
5. Creating applet viewer
6. Accessing private method from outside the class

1. Java Array
2. Types of array: single dimensional array, multidimensional array, declaration, instantiation, and initialization of Java array
3. Passing array to a method
4. Anonymous array in Java
5. Cloning an array in Java

1. String,
2. Immutable String
3. String Comparision, String concatenation
4. Substring
5. StringBuffer class
6. StringBuilder class
7. toString method
8. StringTokenizer class

1. Java multithreading
2. Multithreading life cycle of a thread creating
3. Thread scheduler
4. Sleeping a thread, Start a thread twice
5. Calling run() method
6. Joining a thread
7. Naming a thread
8. Thread priority,
9. Daemon thread
10. Thread pool
11. Thread group
12. Shutdownhook
13. Java Synchronization: synchronized method, synchronized block, static synchronization
14. Deadlock
15. Inter-thread Communication
16. Interrupting Thread

1. JDBC Drivers
2. Steps to connect to Database
3. Connectivity with Oracle
4. Connectivity with MySQL
5. Connectivity with Access without DSN
6. DriverManager
7. Types of JDBC statements: Statement, Prepared statement, Callable statement
8. Database Metadata, Resultset Metadata
9. ResultSet, types of ResultSet,
10. Storing image, Retrieving image
11. Storing file, Retrieving file, Stored procedures, and functions
12. Transaction Management
13. Batch Processing
14. JDBC New Features, Mini Project, and interview questions.