SAP技術(shù)類筆試題

　　Prerequisite Notice:

　　Answers are preferred in English;

　　Test time is 60 minutes;

　　Finish more than one question.

　　1.Give an example of implementing a Stack in the template way(only template

　　class declaration without detail definition and realization)

　　2.What's the difference between String and StringBuffer?

　　3.Which came the first,chicken or the egg?

　　4.In C++,there're four types of Casting Operators,please enumerate and explain

　　them especially the difference.

　　5.Let's say we have a database with 1 one-column table.It contains same record

　　s. Could you please give at least 1 solution to help us get records

　　between line 5 and 7. No line number,row id or index etc.

　　6.What will be the output of the following codes?

　　#include

　　#define DBL(x) x+x

　　int main()

　　{

　　int a=3;

　　int b=4;

　　int c=DBL(a)*DBL(b);

　　cout< return 0;

　　}

　　7.Please write a program to realize the model described in the figure.You

　　should design your program as generic as possible so that we can enhance the m

　　odel in the future easily without making too much change in your program.

　　Process1:X=A+B;

　　Process2:Y=C+D;

　　Process3:if E>=0

　　Z=E;

　　Process4:if E<0

　　Z=E/B;

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