Java in 25 hour

1-java

2-jvm,jre,jdk

3-datatypes

4-class and objects

5-contructors and methods

6-variables

7-modifiers

8-operators

9-Typecasting and Boxing and inboxing

10-Inner classes

11-Packages

oops-

12- 1-inheritance-aggregation-composition

13- 2-polymorphism-compile and runtime

14- this and super keywords

15- 3-abstraction

-interface

16- 4-encapsulation

17-arrays

18-String handling

19-collection framework

20-exception handling

21-I/O Api-serialization

22-multithreading-synchronization

23-reflection api

24-Design Pattern

25-jdbc

+ requested topic/ code