JAVA important questions.

1) why thread is called light weighted task and process called heavy weighted task.
2) role of priority's in multithreading.
3) how do you set and get priority values for threads in java with an example.
4) what is the need of exception handling. explain it taking divide by zero as an example.
5) explain throw statement in java with an example.
6) difference between throw and throws statement.
7) what is event source. give examples of event sources. how evbents are generated.
8) event delegation model? explain.
9) discuss briefly DCP, UPP, URL
10)what is Inet adrerss. how do you create. what is its use.
11)what are various JFC continuous. list them according to their functionality. explain with examples.
12)explain the following.
a)create applet.
b)pass a parameter to objects.
c)adding graphs and colours to applets.
13)explain layout managers.
14)what is an applet? explain flow layout manager.