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quick help, exam tomm, getXXX()

 
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Section 8: Fundamental Classes in the java.lang Package
--------------------------------------------------------------------------------


Write code using the following methods of the java.lang.Math class: abs, ceil, floor, max, min, random, round, sin, cos, tan, sqrt.
Describe the significance of the immutability of String objects.
Describe the significance of wrapper classes, including making appropriate selections in the wrapper classes to suit specified behavior requirements, stating the result of executing a fragment of code that includes an instance of one of the wrapper classes, and writing code using the following methods of the wrapper classes (e.g., Integer, Double, etc.):
o doubleValue
o floatValue
o intValue
o longValue
o parseXxx
o getXxx
o toString
o toHexString







What getXxx methods do i have to remember

also do i need to remember all the methods of collection classes.

also do i need to remember methods , constructors of StringBuffer class.

please reply

Thanks.
 
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Your first question: What getXxx methods do i have to remember

What I understood, those are the getIntger and getLong methods in the respective wrapper classes.

Good question.
 
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also do i need to remember all the methods of collection classes.



I don't think you need to rememeber all the methods in collections. Infact u don't need to remember signature of any method in collections. What u'll to rememeber though is that which collection and which intrerface is used for what purpose. U may be given a situation in the exam and depending on that u'll have to choose the most suitable collection.
 
Jigar Gosar
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thanks,

one more :
what methods of wrapper classes and strng class should i remember besides those mentioned in exam objectives???

Please Reply.

Thanks.
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