I have the following doubts in Java.Can anybody help me out ?

1. What is difference between Checked and Unchecked Exception

2. Explain throw and throws clauses?

3. Does java support Preemptive scheduling of threads.

4.What are green threads and deamon threads?

5. In how many ways a Thread can be created? what is the difference between
them?

6.How do you make API in Java?

7.what happens when you declare a variable as volatile?

8 Java Threads are platform independant?

9.what is the difference between a Thread and a Process?