JAVA题库:格林模拟试题三（下）(7)Java认证考试

文章作者 100test 发表时间 2009:04:10 01:41:36
来源 100Test.Com百考试题网

question 52)

you have been asked to create a scheduling system for a hotel and catering organsiation.

you have been given the following information and asked to create a set of classes to represent it

on the catering side of the organsiation they have

head chefs
chefs
apprentice chefs

the system needs to store an employeeid, salary and the holiday entitlement

how would you best represent this information in javae been given the following information and asked to create a set of classes to represent it.

how would you best represent this information in java

1) create classes for head chef, chef, apprentice chef and store the other values in fields
2) create an employee class and derive sub classes for head chef, chef, apprentice chef and store the other values in fields.
3) create and employee class with fields for job title and fields for the other values.
4) create classes for all of the items mentioned and create a container class to represent employees

question 53)

you need to read in the lines of a large text file containing tens of megabytes of data. which of the following would be most suitable for reading in such a file

1) new fileinputstream("file.name")
2) new inputstreamreader(new fileinputstream("file.name"))
3) new bufferedreader(new inputstreamreader(new fileinputstream("file.name"))).
4) new randomaccessfile raf=new randomaccessfile("myfile.txt"," rw").

question 54)

what will happen when you attempt to compile and run the following code?

public class inc{

public static void main(string argv[]){

                inc inc = new inc().

                int i =0. 

                inc.fermin(i).

                i = i  .

                system.out.println(i).

        }

        void fermin(int i){

                i  .

        }

}

1) compile time error
2) output of 2
3) output of 1
4) output of 0