... language source file
.cc, .cpp C+ + language source file
.h Header file
.m Objective- C source file
.mm Objective- C+ + source file
.pl Perl source file
.o Object (compiled) file
Objective- C source files ... 429
Using NSData to Create Custom Archives 436
Using the Archiver to Copy Objects 439
Exercises 441
20 Introduction to Cocoa and Cocoa Touch 443
Framework Layers 443
Cocoa Touch 444
21 Writing ... entire C language
before learning Objective- C is wrong. C is a procedural language containing many features
that are not necessary for programmingin Objective- C, especially at the novice level. In
fact,...
... of programmingin Objective- C
rests on the extensive frameworks that are available.
Chapter 2, Programmingin Objective- C, ” begins by teaching you how to write your
first program in Objective- C.
Because ... be
printed at the points indicated by the next two occurrences of the %i characters in the
format string.
Summary
After reading this introductory chapter on developing programs in Objective- C, you
should ... Object, Anyway? 27
Instances and Methods 28
An Objective- C Class for Working with Fractions 30
The @interface Section 33
Choosing Names 34
Class and Instance Methods 35
The @implementation Section...
... Vectors are defined in
the library
vector, which places them in the std namespace. Thus, a file that uses vectors would
include the following lines:
#include <vector>
using namespace ... this approach of reallocating
capacity in large chunks is more efficient than allocating numerous small chunks.
You can completely ignore the capacity of a vector and that will have no effect on
what ... "Enter account balance (include cents even if .00) $";
cin >> dollars;
cin >> point >> digit1 >> digit2;
accountDollars = dollars;
accountCents = digitToInt(digit1)*10...
... dollars*100;
int allCents2 = secondOperand.cents
+ secondOperand.dollars*100;
int diffAllCents = allCents1 - allCents2;
int absAllCents = abs(diffAllCents);
int finalDollars = absAllCents/100;
int ... simple overloading). Be sure to notice that the second declarations of
f has two
occurrences of
const. You must include both occurrences of const. The ampersand
signs
& are of course also ... Overloading, Friends, and References
Display 8.6 Overloading ++
(part 1 of 2)
1 #include <iostream>
2 #include <cstdlib>
3 using namespace std;
4 class IntPair
5 {
6 public:
7 IntPair(int...
... whitespace character.
Whitespace characters are all the characters that are displayed as blank space on the
screen, including the blank character, the tab character, and the newline character,
’\n’. ... "Enter a line of input:\n";
cin.get (c1 );
cin.get (c2 );
cin.get (c3 );
cin.get (c4 );
cout << c1 << c2 << c3 << c4 << "END OF OUTPUT";
If the dialogue begins ... the newline
character
’\n’, you can use the ignore member function. For example, the following
will skip over all input characters up to and including the newline character,
’\n’:
cin.ignore(1000,...
... string aChar = s.substr(i,1); //A one-character string
69 int location = punct.find(aChar, 0);
70 //Find location of successive characters
71 //of src in punct.
72 if (location < 0 || location ... substring in punct is determined using
the find member function. If this one-character string is not in the punct string, then the
one-character string is concatenated to the noPunct string that ... aString.
aString is an object of the class string.
EE
EE
ll
ll
ee
ee
mm
mm
ee
ee
nn
nn
tt
tt
aa
aa
cc
cc
cc
cc
ee
ee
ss
ss
ss
ss
str[i]
Returns read/write reference to character in str at index...
...
main function, #include the minimum collection of files to provide access to the
names from namespace
A. In your main function call the functions f then g. Compile,
link, and execute using ... namespace. Test your code. To provide access to
names in namespaces, you may use local
using declarations such as
using std::cout;
or use local using directives such as:
using namespace std;
inside ... To provide access to names in
namespaces, you may use local
using declarations such as:
using std::cout;
or use local using directives such as:
using namespace std;
inside a block, or qualify...
... fin;
fin.open("stuff.txt");
copyChar(fin);
copyChar(cin);
15. Define a function called copyLine that takes one argument that is an input stream. When
called,
copyLine reads one line of input from the input stream ... the screen, and the second will
copy a line from the keyboard to the screen:
ifstream fin;
fin.open("stuff.txt");
copyLine(fin);
copyLine(cin);
16. Define a function called sendLine ... from an input stream called
fin (which is connected to an input file), the follow-
ing will discard all the input left on the line currently being read from the input file:
newLine(fin);
If...
... An
abstract class can only be used as a base class to derive other classes. You cannot create
objects of an abstract class, since it is not a complete class definition. An abstract class is
a partial class ...
Employee::printCheck a pure virtual function, we have set things up so that the compiler will
enforce the ban against invoking
Employee::printCheck.
Display 15.6 Interface for the Abstract Class ... //problem.
3 #include <string>
4 #include <iostream>
5 using std::string;
6 using std::cout;
7 using std::endl;
8 class Pet
9 {
10 public:
11 string name;
12 virtual void print( ) const;
13...
... a linked list. The function
headInsert given in Display 17.4 can be used to insert a node at the beginning of a
list.
By using the function
insert you can maintain a linked list in numerical ... Linked List
N
ODE
AND
P
OINTER
T
YPE
D
EFINITIONS
class IntNode
{
public:
IntNode( ){}
IntNode(int theData, IntNode* theLink)
: data(theData), link(theLink){}
IntNode* getLink( ) const ... node that contains that
integer. If no node contains the integer, the function will return
NULL. This way our
program can test whether the
int is in the list by checking to see if the function...
... to
container classes of almost any kind. Recall that when we discussed iterators in
Chapter 19, we first described them in the abstract as ways of cycling through
a range of data in any kind of container. ... underlying container class could be a member vari-
able of the
stack
class, or the
stack
class could be a derived class of the underlying
container class.
■
THE MODEL-VIEW-CONTROLLER ... entire collection of ele-
ments to be sorted into two smaller collections, sorts the smaller collections by recursive calls,
and then combines the two sorted collections to obtain the final sorted...