CS 162 Lecture Notes - Lecture 13: Member Variable, Data Type, Include Directive

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tanherring959

2 May 2018

School

Oregon State University

Department

Computer Science

Course

CS 162

Professor

J.Parham Mocello

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CS 162 – Lecture 13 – Exam 1 Review

• All multiple choice and T/F

• What value will the function eof return if there are more characters to be read in the

input stream?

o False

• It is possible for a structure variable to be a member of another structure variable?

o True

▪ Has a/contains relationshipe

• What will inFile.fail() return if the file associated with the stream inFile cannot be

opened?

o True

▪ If have to know general algorithm, not syntax of File I/O

• The data members of a class are usually placed in the private section of a class.

o True

▪ We do’t at other people to ess ith our data eers.

• The expression s->m; indicates that s is a structure pointer and m is a structure member.

o True

▪ S is pointer, use dot operator to get to m

▪ (*s).m is same thing

• If the implementation of a member function calls another member function, you do not

need to use dot notation.

o True

▪ If we are still declaring class, we can call by name, all in same scope

▪ Outside of class, need to use dot operator

• A constructor cannot specify a return type.

o True

▪ No return type, not even void

▪ Same as copy constructor, destructor, etc.

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• The implementation of the member functions cannot access the private sectin of the

class.

o False

▪ Can still access it inside

• Object-Oriented design first identifies the objects required in a problem.

o True

▪ Programs run off of objects

• In object-oriented design, it is considered a correct procedure to implememnt a little,

then test.

o True

▪ Regardless of object-oriented, good practice

▪ Right a little bit of code, then compile to test

▪ Do not write 100s or 1000s lines of code without compiling along the way

• When passing a file stream object to a function, you should always pass it by reference.

o True

• You must use the private access specification for all data members of a class.

o False

▪ Know how others can use it

• By default, when an object is assigned to another, each member of one object is copied

to its counterpart in the other object.

o True

▪ Shallow copy

▪ Do not want pointing to two objects on the heap

▪ Destination object should have own money to work with

• A static member variable can be used when there are no objects of the class in

existence.

o True

▪ Need to scope to have access

▪ Ojet does’t eed to exist to do that

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Document Summary

Cs 162 lecture 13 exam 1 review: all multiple choice and t/f, what value will the function eof return if there are more characters to be read in the input stream, false. It is possible for a structure variable to be a member of another structure variable: true, has a/contains relationshipe, what will infile. fail() return if the file associated with the stream infile cannot be opened, true. If the implementation of a member function calls another member function, you do not need to use dot notation: true. Ifstream is read: class type declarations (the class interface) are usually store here. h files: a class is a _______ that is defined by the programmer, data type, user defined data type, abstract datatype. It would work without second const: the first line of the implementation file time. cpp for a class called time could bep, #i(cid:374)(cid:272)lude (cid:862)ti(cid:373)e. h(cid:863)

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CS 162 Lecture Notes - Lecture 13: Member Variable, Data Type, Include Directive

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