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need help for SCJP 1.4 exam

 
Greenhorn
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Respected Friends,
I am preparing for SCJP 1.4 exam,can anyone please answer the following questions:

1) Do I have to memorize the java.util and exceptions hiearchy.
2) Do I have to memorize the methods present in various classes of java.util package and String class.
3) What are the other things which I have to memorize for the exam of SCJP 1.4

Please reply soon, also please note my e-mail adress taqi10@yahoo.com
 
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Originally posted by Raza Taqi:
Respected Friends,
I am preparing for SCJP 1.4 exam,can anyone please answer the following questions:

1) Do I have to memorize the java.util and exceptions hiearchy.
2) Do I have to memorize the methods present in various classes of java.util package and String class.
3) What are the other things which I have to memorize for the exam of SCJP 1.4

Please reply soon, also please note my e-mail adress taqi10@yahoo.com




1. I'd say you definitely need to know the exceptions heirarchy, particularly the distinction between Exception, RuntimeException, and Error. Fortunately there isn't very much to it. As far as java.util goes, you are only tested on Collections, String, StringBuffer, Math, and the Wrapper classes. I would be sure to know the names of the Collection interfaces and what interfaces, if any, they are extended from. Also know which wrapper classes extend Number.

2. I think the objectives tell you which methods are covered on the exam, but obviously the more you have memorized the more it will help you. You definitely want to be familiar with constructors for all of the classes, particularly the wrapper classes.

3. Consult the objectives for a comprehensive list. Don't neglect the Thread class and the Object class while studying API's.

Good luck!

Robert
 
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Respected future Sun-certified Java Programmer!

The answer to your question, you need to know the difference between an exception and an error; between checked and unchecked exceptions; and know the exceptions hierarchy to the point where, if they wake you at night, you quickly and in one gasp mete out a precise hierarchial structure of it.



Pay also great attention to the Thread class. The key to realize about Threads' wait() and notify() capability is that every object is able to keep a list of threads accessing it internally, and hence, you should think about those methods in those terms. It used to give me a lot of problems conceptually, until I read that the Object class provides thread-tracking functionality.

Wish you luck.
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
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