ABSOLUTE C 4TH EDITION PART 62 POTX

However, we have enough accessor and mutator functions in the base class that with just a bit more thinking, we can rewrite the implementation of the derived class PFArrayDBak so that it[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]

TRANG 1 DISPLAY 7.4 THE CONST PARAMETER MODIFIER PART 2 OF 3 40 int dollarsPartdouble amount const; 41 int centsPartdouble amount const; 42 int rounddouble number const; 43 double fracti[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]

may be ended early with a continue statement. It is best to use break statements sparingly. It is best to completely avoid using continue statements, although some programmers do use them on rare occasions.ANSWERS TO SELF-TEST EXERCISES1. a. true.b. true. Note that expressions a and b mean exactly t[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]

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]

for (int i = 0; i < n; i = i * 2); log++;cout << n << " " << log << endl;80 Flow of Control34. For each of the following situations, tell which type of loop (while, do-while, or for) would work best.a. Summing a series, such as 1/2 + 1/3[r]

56 const double PI = 3.14159;57 double radius, area;5859 radius = diameter/double(2);60 area = PI * radius * radius;61 return (price/area);62 }04_CH04.fm Page 158 Wednesday, August 13, 2003 12:49 PMOverloading and Default Arguments 159■DEFAULT ARGUMENTSYou can specify a default argument for o[r]

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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]

As in most programming languages, C++ handles flow of control with branch-ing and looping statements. C++ branching and looping statements are similarto branching and looping statements in other languages. They are the same asin the C language and very similar to what they are in the Java prog[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]

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]

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]

{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]