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  • C++ 21

    Microsoft Visual C++. . , Microsoft Visual Studio. 6.0 - , MFC , . - . .

    , .

    21 1. 23 1. 24 2. C++ 40 3. 51 4. 71 5. 100 6. 135 7. 167 2. 201 8. 202 9. 233 10. 264 11. 301 12. 333 13. 374 1 4. 41 3 3. 451 15. 452 16. 505 17. 544 18. - 561 19. 596 20. 644 21. 673 . 725

  • . C++ 727 . 728 . 736 807

    21 21 21 1 23 23 23 1. 24 24 C++ 24 25 25

    , - 26

    C++ - 28 C++ 29 29C++ Java 29 ANSI 30 30 31 31 32 33 C++ HELLO. 33 Visual C++ 6 36

    36 37 37 38 38

    38 39

    2. ++ 40 C++ 40 cout 42 44

    44

  • 45 : ! 45

    46 47

    49 49 49

    49 50

    3. 51 51

    52 52 53 54

    55 56 57

    57 58 typedef 59

    short long 60 61

    61 62

    63 63

    64 64 64 #deiine 65 const 65

    66 68 68 69

    70 70

    4. 71 71

    72 72

    72

  • 74 74 74 75

    77 77

    78 80 80 81

    82 if 83

    86 else 86 if 88

    if 90 92

    93 93 93

    93 94 95 95 97 97 98

    98 98

    5. 100 1 00 , 1 01 101

    1 02 1 02 1 04

    1 06 1 06 108 ; 1 09 11 0, 111

  • 11 2 112

    11 3 11 4 , 116 11 9 1 21

    inline- 122 1 23

    1 28 1 28 1 29 131

    132 132 133

    133 134

    6. 135 135

    136 136

    136 137 138 138

    138 , 138 , 139

    139 1 42 , 1 43

    1 45 1 47

    , 1 48 , 1 48

    - const 151 152 155 156, - 159

  • 162 163

    163 164 165

    165 165

    7. 167 167

    goto 167 goto 168

    while 169 while 170 break continue 171 while(true) 1 73 do...while 1 74

    do...while 1 75 for 1 76 for 1 78 for 181 182

    - for 183 184

    switch 186 switch 189 1 92 1 92 1 92

    1 93 1 93

    2 201 201 8. 202 202

    204 206 206, 207 208 , 209

    211 211

  • new 212 delete 213

    215 215 216 217 218 this 221, 222 const 225

    const 226 -

    const this 227 228 230 231 231

    231 231

    9. 233 233 (&) 234

    236 237 239 239

    swap() 241 swap() 242

    243 244

    246 247

    250 253

    , 255 256 , 257 ! 259 ? 261 261 262 262

  • 262 263

    10. 264 - 264 , 266 269, 269 269 271- 272 276

    277 278 280 281 this 283 284 284 286 288 290 290 290 291

    293 296

    297 298 299

    299 299

    11. 301 301

    302 303 303

    305 307

    309 313

    315 317

    319

  • 323 , 324 324 326 - 327 330

    330 331 331

    331 332

    12. 333 333 333 335 338 338 340 341 343 344 345 346 347 348 348 350 351 strcpy() stmcpy() 353 354 360 361

    361 362 371 371 372 372 373

    373 373

    13. 374 374

  • 377 377 380

    380 , 383

    , 384

    386 387 391 394- 395

    396 399 401 404 408

    408 , 409

    Java 41 0 41 0 411

    411 411

    14. 413 - 41 3 - 41 8 420

    423 426 429 typedef 431

    - 433 - 436

    438 438 439

    439 439

    3 451

  • 451 15. 452 452

    458 458 459 462

    465 466

    475 483 492 492 497 501 502 502

    502 503

    16. 505 505

    505 506

    509 - 509

    509 510

    511, 512 >> istream 514

    515 515 517

    ut 522 522

    - ut 522, 524

    ut. width() 524 525 526

    rintf() 528 531

    ofstream 531

  • 532 - 532 ofstream 533

    536 - 538 541 541 542

    542 543

    17. 544 544 545 548

    549 550 550 550

    551 using 553

    using 553 using 555

    557 557 std 558 559 560

    560 560

    18. - 561 C++ - 561 562 : 563 565 566 567

    567 568 569 570 573 574

  • 576 577 577 578 578

    579 579 581 581

    582 CRC 583 585

    589 592

    594 594 595

    595 595

    19. 596 596 597

    597 597

    599 599

    602 603

    , 603 607

    61 0 61 5 620

    624 624 625

    625 631 633

    633 634 634

    634

  • 637 638

    , 639 640

    641 641 642

    642 642

    20. 644, , "" 644

    645 "" 646

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    658 665 668 668

    669 669 669 669

    670 670 671

    671 671

    21. 673 673 674 #define 674

    #define 674 #define 674 #else 675

    676 678

    678 680

  • 680 682

    682 682

    683 assert() 683

    assert() 685 assert() 685 686 686 691 693

    699 (AND) 699 (OR) 699 (OR) 700 700 700 700 701 701

    704 704 705 705 switch 705 706 706 707 707 708 708 708 assert() 709 const 709

    709 709 710 71 0

    710 711 71 2

    71 2

  • . 725 . C++ 727 . 728 . 736 807

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    , 731

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    , 701 , 506

    -

    , 531 , 525 , 514 , 530 , 638 , 509 , 515 , 522 , 509 , 538 , 692 , 517 , 511, 524; 530

    , 625

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    , 323 , 452

    , 732

    , 633 , 466

    , 307 , 326

    #define, 674 #else, 675 #endif, 675 #ifdef, 674 #ifndef, 674 #include, 673 (#), 682 (##), 682

    , 700

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    , 658 , 647 , 655 , 662

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    , 466

    , 483 , 536 , 686 , 655 , 624 , 395 , 371; 597 , 677

    , 650 , 677 , 708 -, 509

    , 727 catch, 647 class, 303 const, 65; 709 enum, 66 inline, 122; 680 namespace, 548 new, 347 operator, 286 protected, 305 return, 11 4 static, 415; 548 template, 597 try, 647typedef, 59; 431 using, 553 virtual, 322 , 57

    , 44; 707

    , 674 , , 674

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    65; 674 const, 65 , 66

    , 64

  • , 64

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    , 309 , 272 , 269; 309 , 294 ,

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    , 544 , 351; 512

    , 327 , 272 , 272

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    DEBUG, 683

    , 678assert(), 683; 709 EVAL, 698 MAX, 678 MIN, 678 PRINT(x), 692 , 683

    , 700

    argv, 538 ,

    347 ,

    348

    , 335 , 348, 333 , 338; 344 , 343 , 333 , 341 , 340 , 351 ,

    350, 346 , 436 , 426 , 598

    , 377 , 375 , 317; 387

    , 404 , 391 , 475 , 305 , 380 , 302 , 387 , 303; 466 , 303

    , 110; 546

    , 183

    in, 510 ut;, 42; 522 ofstream, 531 -, 509 , 546 , 280 , 281 , 324 , 271

  • , 272 , 277 , 291 ,

    307, 287 ,

    307 , 638

    break, 171; 189 catch, 652 continue, 1 71 delete[], 350 dynamic_cast, 377 endl, 43 for, 1 77 goto, 1 67 return, 105; 114 switch, 186; 187; 705 using, 553 watch, 711 while, 1 69 , 725 (>>), 510 (::), 545 (

  • , 732 , 284

    iostream, 510 ofstream, 531 ostream, 522 -, 509 , 526

    , 284 , 673

    HELLO.CPP, 40 , 44 , 683 , 704

    Window, 548 , 550 , 550 , 557 , 544 , 548 , 557 std, 548; 558; 625

    , 1 02

    , 1 29 , 1 23

    , 360

    , 631 ,

    361, 362 , 361 , 361

    , 323

    , 313 , 1 02

    ASCII, 54; 62 , 44

    , 669

    , 63 , 43; 64 , 62 , 63 , 44; 64 , 530

    , 728 , 730 , 729 , 732

    , 631

    STL, 624 , 129; 633

    , 633 , 652

    , 704 , 42; 351

    , 351 , 358 , 359

    , 323 , 47

    char, 62 long, 60 short, 60 void, 47 (ADT), 396 (), 54 , 53 , 53 , 360 typedef, 59;

    431 , 377 , 597 , 52; 57 , 294

    , 669

  • ptr, 323; 436 rhs, 275 this, 283; 420 vptr, 323 , 130 , 433 , 348 , 420

    , 676 , 536 -, 532 , 673 , 536

    , 677 algorithm, 638 iomanip.h, 530 iostream.h, 43 list, 631 map, 634 stack, 633 stdio.h, 528 strin.h, 353 String.hpp, 458 vector, 625 , 1 02 , 1 02

    , , 124; 184

    , 699 , 701 , 700 , 700

    stmcpy(), 353

    bad(), 532 cin,get(), 515 cin.getline(), 518 cin.ignore(), 520 cin.peek(), 521

    cin.putback(), 521close(), 532cout.fill, 525cout.put(), 522cout.setf 526cout.width(), 524cout.write(), 523eof(), 532fail(), 532flush(), 522Invariants(), 686main(), 41; 100; 116printf(), 528sizeof(), 53strcpy(), 353strlen(), 359, 47; 1 01 , 550, 319; 662 , 1 01, 1 00, 492 , 603 , 313 , 46; 1 00 , 102 , 1 04 , 47, , 1 01 , 11 9; 264 , 122; 680 , 11 9 , 1 00 , 1 02 , 1 02

    315, 61 5 , 418; 620 , 47

    , 266 , 399

  • , 603

    , 167do...while, 175 for, 177 goto, 167 while, 169 , 189 , 182 , 181

    , 596 Array, 597 , 599 , 607

  • , 599 , 597 , 598 , 597 , 602 , 620 , 597; 610

    , 598; 610 , 333

    , 340

  • (Jesse Liberty) , C++ - , C++ Report. Liberty Associates, Inc. (http://www.libertyassociates.com), Internet - , , .

    (Distinguished Software Engineer at AT&T) - (Citibank's Development Division). (. ) (Stacey) (Robin) (Rachel). Internet : j [email protected]. Web- : http://www.libertyassociates.com Books and Resources ( ).

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    Hello there.Here is 5: 5The manipulator endl writes a new line to the screen.Here is a very big number: 70000 Here is the sum of 8 and 5: 13 Here's a fraction: 0.625And a very very big number: 4.9e+07 Dont forget to replace Jesse Liberty with your name...Jesse Liberty is a C++ programmer!

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  • .!. 1: // 2: // 3:4: include // cout 5:6: class Cat // 7: {8: public: // 9: int itsAge;10: int itsWeight:11: };12:13:14: int main()15: {16: Cat Frisky;17: Frisky.itsAge =5; // - 18: cout "Frisky is a cat who is ";19: cout Frisky.itsAge

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    142 1

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    // cout

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    6. 145

  • 24: // SetAge25: // - itsAge26: void Cat::SetAge(int age)27: {28: // - itsAge 29: // , 30: itsAge = ;31: }32:33: // Meow34: // void35: // 36: // "Meow"37: void Cat::Meow()38: {39: cout "Meow.\n";40: }41:42: // , , 43: // , , .44: int main()45: {46: Cat Frisky;47: Frisky,SetAge(5);48: Frisky.Meow();49: cout
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    6. 149

  • 20 : 34:35: // SetAge, 36: // 37:38: void Cat::SetAge(int age)39: {40: // - itsAge 41: // , age 42: itsAge = age;43: }44:45: // Meow 46: // void 47: // 48: // "Meow"49: void Cat::Meow()50: {51: cout
  • . K Meow.Frisky is a cat who is 5 years old.Meow.Now Frisky is 7 years old.

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    6. 151

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    // Cat Cat::Cat(int initialAge){itsAge = initialAge;cout

  • 45: // Meow46: // void47: // 48: // "Meow"49: void Cat::Meow()50: {51: cout

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    156 1

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    1: iinclude 2: class Cat 3: {4: public:5: Cat (int initialAge);6: ~Cat();7: int GetAgeO const { return itsAge; > // !8: void SetAge (int age) { itsAge = age;} // !9: void Meow() const { cout

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    6.8. _______________________________1: // Rect.hpp2: include 3: class Point // x,y4: {5: // , 6: public:7: void SetX(int ) { itsX = ; }8: void SetY(int y) { itsY = y; }9: int GetX() const < return itsX;}10: int GetY() const { return itsY;}11: private:12: int itsX;13: int itsY;14: }; // Point 15:16:17: class Rectangle18: {19: public:20: Rectangle (int top, int left, int bottom, int right);;21: 'Rectangle ()

  • 28: Point GetUpperLeft() const { return itsUpperLeft; >29: Point GetLowerLeft() const { return itsLowerLeft: >30: Point GetUpperRight() const { return itsllpperRight; }31: Point GetLowerRight() const { return itsLowerRight; }32:33: void SetUpperLeft(Point Location) {itsUpperLeft = Location;}34: void SetLowerLeft(Point Location) {itsLowerLeft = Location;}35: void SetUpperRight(Point Location) {itsUpperRight = Location;}36: void SetLowerRight(Point Location) {itsLowerRight = Location;} 37:38: void SetTop(int top) { itsTop = top; }39: void SetLeft (int left) { itsLeft = left; }40: void SetBottom (int bottom) { itsBottom = bottom; }41: void SetRight (int right) { itsRight = right; }42;43: int GetArea() const;44:45: private:46: Point itsUpperLeft;47: Point itsUpperRight;48: Point itsLowerLeft;49: Point itsLowerRight;50: int itsTop;51: int itsLeft;52: int itsBottom;53: int itsRight;54: };55: // Rect.hpp

    6.9. rect. ____________________________1: // rect.2: include "rect.hpp"3: Rectangle::Rectangle(int top, int left, int bottom, int right)4: {5: itsTop = top;6: itsLeft = left;7: itsBottom = bottom;8: itsRight = right;9:10: itsUpperLeft.SetX(left);11: itsUpperLeft.SetY(top);1 2 :13: itsUpperRight.SetXtright);14: itsUpperRight.SetY(top);15:16: itsLowerLeft.SetX(left);17: itsLowerLeft.SetY(bottom);18:

    760 1

  • 19: itsLowe rRight.SetX(right);20: itsLowerRight.SetY(bottom);21: }2 2 :23:24: // , , 25: // , 26: int Rectangle::GetArea() const 27: {28: int Width = itsRignt - its Left ;29: int Height = itsTop - itsBottom;30: return (Width * Height);31: }32:33: int main()34: {35: // Rectangle 36: Rectangle MyRectangle (100, 20, 50, 80 );37:38: int Area = MyRectangle.GetArea();39:40: cout
  • , , - - (. 6.9), ( Point).

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    33 6.9 . 36 , , . , , , ( , ).

    36 ( Rectangle) , Left, Bottom Right.

    37 int. . , - GetAreaO Rectangle.

    Rectangle Rectangle , GetAreaO.

    6.8 Rect.hpp. , Rectangle, , GetAreaO int. Rectangle GetAreaO. , Rectangle GetAreaO, , Rectangle.

    ?

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    162 1

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    . - , . , Friscky Boots Cat, - Friscky ( Friscky), Boots.

    - ? -

    , , . , Cat GetAgeO, Cat ( Cat), , - - .

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    - , const , , GetAge() Cat, :

    if (itsAge = 100) cou

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    1. , Employee ()

    -: (), yearsOfService ( ) Salary ().

    2. Employee, - -.

    3. Employee, Employee; - age, YearsOfService Salary, .

    4. 3 Employee, , , 1 .

    5. Employee , -age, YearsOfService Salary .

    6. 165

  • 6. : ?class Square {public:

    int Side;}

    7. : ?class Cat large;16:17: cout "small: "

  • . small large.

    , , . : , .

    1215 . 20 .

    1. small large.2. large .3. small MAXSMALL.

    , 23, small 5000, small . small 5000 , 0. . 26 small 1, 28 large 2.

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    break u continue

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    7. 171

  • 14: cout "Enter a small number:15: cln small;16: cout "Enter a large number: ";17: oin large;18: cout > target;22:23: cout "\ n"24:25: // 26: while (small < large && large > 0 && small < MAXSMALL)27;28: {29:30: small++;31:32; if (small % skip == 0) // large?33; {34; cout
  • , , -* , .

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    32 small skip. small skip, continue ( 26). large.

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    7.5. w h i l e ______________________________1: // 7.5.2: // "" 3:4: include 5:6: int main()7: {8: int counter = 0;9:10: while (true)11: {12: counter ++;13: if (counter > 10)14: break;15: }16: cout

  • counter 10. break 14, counter ( 16).

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    7.. w h i l e ________________________________1: // 7.6.2: // ,3: // .4:5: include ciostream.h>6 :7: int main()8: {9: int counter;10; cout "How many hellos?: ";11: cin counter;12: while (counter > 0)13: {14: cout

  • 10 , counter. 12

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    7.7. d o . . w h i l e _____________________________________1: // 7.7.2: // do...while 3 :4: include 5:6: int main()7: {8: int counter;9; cout > counter;11: do12 : {13: cout 0 );16: cout "Counter is: "

  • f ' 9 , counter. do.. while

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    1112131415161718 19

    private;

    void SetWidth(int width) { itsWidth = width; } int GetWidth() const { return itsWidth; }

    int itsLength int itsWidth;

    20; };2122 Rectangle;:Rectangle()23; SetWidth(10) ;41: // pConstRect->SetWidth(10);42: pConstPtr->SetWidth(10);43:44: cout

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    1: #include 2: include 3: include 4: bool GetWord(char* string, char* word, int& wordOffset);5: // 6: int main()7

    9:1 0111 213141516 17

    const int bufferSize = 255; char buffer'[bufferSize+1 ];

    char word[bufferSize+1 ]; int wordOffset = 0;

    // // //

    cout

  • GetWordO 27. , 30, st ng [ wo rdOffset] . , . GetWordO false.

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    8. 231

  • 2. , youiAge unsigned short. , ?

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    9. 233

  • 8 . 1 .

    1: // 9.1.2: // 3:4: include 5:6: int main()7: {8: int intOne;9: int &rSomeRef = intOne;10 :11: intOne = 5;12: cout

  • 9.Z. 1: // 9.2.2: // 3:4: ((include 5:6: int main()7: {8: int intOne;9: int &rSoneRef = intOne;1 0 :

    11: intOne = 5;12: cout

  • City; . , beanTown, boston.

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    8.3. ___________________________________________1: // 9.3.2: //

    3456 7

    ((include ciostream.h>

    int main()

    8 int intOne;int &rSomeRef = intOne;9:

    10: 11: 1 2 : 13: 14: 15: 16: 17: 18: 19: 20: 21: 22: 23: 24; 25: 26:

    intOne = 5;cout

  • intOne: 5rSomeRef; 5intOne: 0x213e&rSomeRef: 0x213e

    intOne: 8intTwo: 8rSomeRef: 8&intOne:

    COX

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    CAT & rCatRef = CAT; //

    9. 237

  • rCatRef , CAT:

    CAT frisky;CAT & rCatRef = frisky;

    , . - - ( . ) , , , . 9.4.

    9.4. _____________________________________________1: // 9.4.2: // 3:4: include 5:6: class SimpleCat 7: {8 public9:1 0111 2131415

    SimpleCat (int age, int weight); ~SimpleCat() { }int GetAge() { return itsAge; } int GetWeightO { return itsWeight; }

    private:int itsAge; int itsWeight;

    16: } ; 17:18: Sim19: {

    SimpleCat::SimpleCat(int age, int weight)

    2021

    itsAge = age; itsWeight = weight;

    22: }23:24: 25: {

    int main()

    262728293031323334

    cout

  • 26 Frisky SimpleCat. 27 rCat

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    2:CAT boots;CAT &rCatRef = boots;

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    int x = 5, = 10;

    cout

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  • Main. Before swap, x: 5 y: 10 Swap. Before swap, *px: 5 *py: 10 Swap. After swap, *px: 10 *py: 5 Main. After swap, x: 10 y: 5

    ! 5 swapQ int,

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    19 swap() temp, : * (.. ) . temp .

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    3456 7

    void swap(int &, int &);

    include

    8 int main()9:1 0111 21314

    cout

  • 151617181920 21 2 22324252627282930

    return 0;

    void swap (int &rx, int &ry)

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    .8. _____________________________ _1: // 9,8,2: // 3:4: include 5: int6: short Factor(int n, int* pSquared, int* pCubed);7:8: int tnain()9: {

    244 2

  • 10: int number, squared, cubed;11: short error;1 2 :

    13: cout > number;15:16: error = Factor(number, &squared, &cubed);17:18: if (!error)19: {20: cout

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    0 1 SUCCESS FAILURE.

    9.8 , , , . 9.9 , , ERROR.

    3.9. _________________________________1 : // 9.9,2: // 3: //

    45 include

    7 typedef unsigned short USHORT; enum ERR_C0DE < SUCCESS, ERROR }8

    9:1 011121314151617181920 21 2 223242526

    ERR_C0DE Factor(USH0RT, USH0RT&, USH0RT&);

    int main()

    cout

  • 27: }28: else29: cout "Error encountered!!\ n";30: return 0;31: }32:33: ERR_C0DE Factor(USH0RT n, USHORT &rSquared, USHORT &rCubed) 34: {35: if (n > 20)36: return ERROR; // simple error code37: else38: {39: rSquared = n*n;40: rCubed = n*n*n;41: return SUCCESS;42: }43: >

    Enter a number (0 - 20): 3 number: 3 square: 9 cubed: 27

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    3.10. _ ________________________1 : // 9.10.2: // 3:4: include 5:6: class SimpleCat 7: {8: public:9: SimpleCat (); // 10: SimpleCat(SimpleCat&); // -11: "SimpleCatO; // 1 2 : } :13:14: SimpleCat::SimpleCat()15: {16: cout

  • 33: {34: cout "Making a cat...\ n";35: SimpleCat Frisky;36: cout "Calling FunctionOno...\ n";37; FunetionOna(Frisky);38: cout
  • 36 main() FunctionOne, ( 3 ). FunctionOne() SimpleCat , SimpleCat . , ( 4).

    46, , ( 5 ). , SimpleCat . - , , ( 6 ).

    , FunctionOne(), , , , , , , 7 . FunctionOneO , , , 8 .

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    Frisky , , ( 11 ).

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    250 2

  • 9.11. ____________________________1: // 9.11.2: // 3:4: include 5:6: class SimpleCat7: {8: public:9: SimpleCatO;10: SimpleCat(SimpleCat&);11: 'SimpleCatO;1 2 :

    13: int GetAgeO const { return itsAge; }14: void SetAge(int age) { itsAge = age; }15:16: private:17: int itsAge;18: > ;19:20: SimpleCat::SimpleCat()21: {22: cout "Simple Cat Constructor...\n";23: itsAge = 1;24: }25:26: SimpleCat::SimpleCat(SimpleCat&)27: {28: cout

  • 49:50:51:52:53:54:55: return 0 56: }57:58: // functionTwo, passes a const pointer59: const SimpleCat * const FunctionTwo (const SinipleGat * const theCat) 60: {61: cout "Function Two, Returning,..\ n";62: cout "Frisky is now " theCat->GetAge();63: cout SotAge(8): const!65: return theCat:66: }

    cout

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    3.12. 1: // 9.12.2: // 3:4: include 5:6: class SimpleCat 7: {8: public:9: SimpleCat();10: SimpleCat(SimpleCat&);11: "SimpleCat();1 2 :13: int GetAge() const { return itsAge; >14: void SetAge(int age) { itsAge = age: }15:16: private:17: int itsAge;18: } ;19:20: SimpleCat::SimpleCat()21: {22: cout

  • 29: }30:31: SimpleCat::~SimpleCat()32: {33: cout
  • , C++, SimpleCat SimpleCat. , , . const, , .

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    & rFrisky, rBoots;

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    256 2

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    9.13. _______1: // 9.13.2: // ,3: // 4:5: include 6:7: class SimpleCat8: {9: public:10: SimpleCat (int age, int weight);11: 'SimpleCat() { }12: int GetAge() { return itsAge; }13: int GetWeight() { return itsWeight; }14: private:

    9. 257

  • 15: int itsAge;16: int itsWeight;17: > ;18:19: SimpleCat::SimpleCat(int age, int weight)20: {21: itsAge = age;22: itsWeight = weight;23: }24:25: SimpleCat &TheFunction();26:27: int main()28: {29: SimpleCat &rCat = TheFunction();30: int age = rCat.GetAge();31: cout "rCat "
  • , 9.13, TheFunctionO Frisky . TheFunctionO Frisky .

    : , Frisky, ? 9.14.

    .14. 1: // 9.14.2: // 3: include 4:5: class SimpleCat6: {7: public:8: SimpleCat (int age, int weight);9: "SimpleCatO { }10: int GetAgeO { return itsAge; >11: int GetWeightO { return itsWeight; }12:13 private:14: int itsAge;15: int itsWeight;16: } ;17:18: SimpleCat::SimpleCat(int age, int weight)19: {20: itsAge = age;21: itsWeight = weight;2 2 : }23:24: SimpleCat & TheFunctionO;25:26; int main()27: {28: SimpleCat & rCat = TheFunctionO;29: int age = rCat.GetAgeO;30: cout "rCat " age

  • 35: // , rCat??36: return 0;37: }38:39: SimpleCat &TheFunction()40: {41: SimpleCat * pFrisky = new SimpleCat(5,9);42: cout
  • . SimpleCat 28 TheFunction . SimpleCat ( TheFunction()), , TheFunction() . , , delete.

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    1: include 2:3: class CAT 4: {5: public:6: CAT(int age) { itsAge = age; }7: CAT(){ >8: int GetAge() const { return itsAge;}9: private:10: int itsAge;11: ) ;1 2 :13: CAT & MakeCat(int age);14: int main()15: {16: int age = 7;17; CAT Boots = MakeCat(age);18; cout "Boots is " Boots.GetAgeO " years old!\n";19; return 0;20: }21:22: CAT & MakeCat(int age)23: {24: CAT * pCat = new CAT(age);25; return *pCat;26: }

    9. 8.

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    264 2

  • 8: public:9: // 10: Rectangle(int width, int height):11: 'Rectangle(){ }12:13: // - DrawShape14: void DrawShape() const;15: void DrawShape(int aWidth, int aHeight) const;16:17: private:18: int itsWidth;19: int itsHeight;20: } ;21:22: // 23: Rectangle::Rectangle(int width, int height)24: {25: itsWidth = width;26: itsHeight = height;27: }28:29:30: // DrawShape - 31: // , 32: void Rectangle::DrawShape() const 33: {34: DrawShape( itsWidth, itsHeight);35: >36:37:38: // DrawShape - 39: // , 40: void Rectangle::DrawShape(int width, int height) const 41: {42: for (int i = 0; i
  • 58: theRect. DrawShapeO;59: cout ''\nDrawShape(40, 2): \n"; 60: theRect.DrawShape(40,2);61: return 0;62: >

    ************************************************************

    DrawShape(40,2):************************************************************************************************************************

    10.1 , - . , . .

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    52 62 DrawShapeO. , unsigned short integer.

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    266 2

  • 1B.Z. , 1: // 10.2. , 2: ((include 3:4: int 5:6: // Rectangle 7: class Rectangle 8: {9: public:10: // 11: Rectangle(int width, int height);12: "Rectangle( ) { }13: void DrawShape(int aWidth, int aHeight, bool UseCurrentVals = false) const; 14:15: private:16: int itsWidth;17: int itsHeight;18: } ;19:20: // 21: Rectangle::Rectangle(int width, int height):22: itsWidth(width), // 23: itsHeight(height)24: < } // 25:26:27: // 28: void Rectangle::DrawShape(29: int width,30: int height,31: bool UseCurrentValue32: ) const 33: {34: int printWidth;35: int printHeight;36:37: if (UseCurrentValue == true)38: {39: printWidth = itsWidth; // 40: printHeight = itsHeight;41 : } ' . '42: else 43: 47:48:

    10. 267

  • 49: for (int i = 0; i
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    10. 269

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    , Rectangle . , . 10.3.

    10.3. ____________________________ _________________1 : // 10.3.2: // 3:4: include 5:6: class Rectangle 7: {8 public:

    RectangleO;Rectangle(int width, int length);"RectangleO { >int GetWidthO const < return itsWidth; } int GetLength() const { return itsLength; }

    9:10111 21314151617181920 21 222324252627282930313233343536373839404142

    Rectangle::Rectangle()

    private:int itsWidth; int itsLength;

    Rectangle:: Rectangle (int width, int length)

    }

    int main()

    Rectangle Recti; cout "Recti width: " Recti.GetWidth() endl; cout "Recti length: " Recti.GetLength() endl;

    int aWidth, aLength; cout

  • 4344454647

    Rectangle Rect2(aWidth, alength);cout "\ nRect2 width: " Rect2.GetWidth() endl; cout Rect2 length: " Rect2.GetLength() endl;

    return 0;

    Recti width: 5 Recti length: 10 Enter a width: 20

    Enter a length: 50

    Rect2 width: 20 Rect2 length: 50

    Rectangle