Cover all the topics in core java, some critical interview questions & program.
Topics Covered:
1) **Java Introduction**
2) **OOP's Concept**
3) **Variable & Data Types**
4) **Java Operator**
5) **Java String**
6) **Java Regex**
7) **Exception Handling**
8) **Java Inner Classes**
9) **Multi Threading**
10) **Synchronization**
11) **Java Programming**
12) **Interview Question**