ABSOLUTE C 4TH EDITION PART 76 POTX

TRANG 1 18 EXCEPTION HANDLING 18.1 EXCEPTION HANDLING BASICS 759 A Toy Example of Exception Handling 759 Defining Your Own Exception Classes 768 Multiple Throws and Catches 768 Pitfall: [r]

xy+7 3xy+z 2+ 01_CH01.fm Page 22 Wednesday, August 20, 2003 2:21 PMVariables, Expressions, and Assignment Statements 236. What is the output of the following program lines when they are embedded in a correct program that declares number to be of type int? number = (1/3) * 3; cout << "([r]

15. a. Only one. The compiler warns if you have no public: members in a class (or struct, for that matter).b. None, but we normally expect to find at least one private: section in a class.16. The member variables should all be private. The member functions that are part of the interface should be pub[r]

THINKING OBJECTSIf you have not programmed with classes before, it can take a little while to get the feel of pro-gramming with them. When you program with classes, data rather than algorithms takes center stage. It is not that there are no algorithms. However, the algorithms are made to fit the dat[r]

the Control key while pressing the C key.)In simple programs, an infinite loop is almost always an error. However, some programs are intentionally written to run forever (in principle), such as the main outer loop in an airline reser-vation program, which just keeps asking for more reservatio[r]

functions.■ A function should be defined so that it can be used as a black box. The programmer who uses the function should not need to know any details about how the function is coded. All the programmer should need to know is the function declaration and the accompanying comment that describes the[r]

For example, the void function initializeScreen, defined below, simply sends a newline command to the screen: void initializeScreen { cout number; 12 cout > totalWeight; 14 iceCreamDiv[r]

The following generates a pseudorandom floating-point value between 0.0 and 1.0: rand /static_castRAND_MAX The type cast is made so that we get floating-point division rather than intege[r]

tions. Since you can think of the value returned as being a random number, you canuse a random number generator to simulate random events, such as the result of throw-ing dice or flipping a coin. In addition to simulating games of chance, random numbergenerators can be used to simulate things that st[r]

if (i < 5 && i != 2) cout << ‘X’;b. for (int i = 1; i <= 10; i = i + 3) cout << ‘X’;c. cout << ‘X’// necessary to keep output the same. Note // also the change in initialization of n for (long n = 200; n < 1000; n[r]

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You might be tempted to think the function definition could be simplified to the following: To see that this alternative definition cannot work, consider what would happen with this defi[r]

That in turn is equivalent to 0 > 60, because 60 is the value of limit, and that evaluates to false. Thus, the above logical expression evaluates to false, when you want it to evaluate to true.There are two ways to correct this problem. One way is to use the ! operator correctly. When using t[r]

Tip: Repeat-N-Times Loops 76Pitfall: Extra Semicolon in a for Statement 76Pitfall: Infinite Loops 77The break and continue Statements 80Nested Loops 83CHAPTER SUMMARY 83ANSWERS TO SELF-TEST EXERCISES 84PROGRAMMING PROJECTS 89 2 Flow of Control “Would you tell me, please, which way I[r]

double is output, it will be output in ordinary notation with three digits after the dec-imal point?12. Write a complete C++ program that writes the phrase Hello world to the screen. The program does nothing else.13. Give an output statement that produces the letter ’A’, followed by the newline char[r]

In cold weather, meteorologists report an index called the wind chill factor, which takes into _ account the wind speed and the temperature.. The index provides a measure of the chilling[r]

1. Write a program that converts from 24-hour notation to 12-hour notation. For example, it should convert 14:25 to 2:25 P.M. The input is given as two integers. There should be at least three functions: one for input, one to do the conversion, and one for output. Record the A.M./P.M. information as[r]

Whenever you give two or more definitions to the same function name, the various function definitions must have different specifications for their arguments; that is, any two function de[r]

{public: void set(double newDegrees, char newScale); //Sets the member variables to the values given as //arguments. double degrees;char scale; //’F’ for Fahrenheit or ’C’ for Celsius. };11. Carefully distinguish between the meaning and use of the dot operator and the scope reso-lution opera[r]

68 {69 cout << "Welcome to our bank.\n"70 << "The status of your account is:\n";71 yourAccount.output( );72 }73 //Uses iostream and cstdlib:74 void BankAccount::output( ) const75 <The rest of the function definition is the same as in Display 7.2.> 76[r]