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spaghetti3451
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Any method (within a C++ class) that prints to a file or to a screen has a return type of void. What role does the keyword void perform?
It indicates to the compiler that the method does not return a value.failexam said:Any method (within a C++ class) that prints to a file or to a screen has a return type of void. What role does the keyword void perform?
The void keyword in C++ class methods indicates that the method does not return a value. This means that the method is used for performing a task or action, rather than returning a result.
Yes, a void method can have parameters that are used to pass data into the method for it to use in its task or action. However, since void methods do not return a value, the parameters cannot be used to return a result.
File printing in C++ class methods involves using the fstream library to open a file, write to the file using the ofstream class, and then close the file. This allows for data to be saved to a file for later use.
The main difference between file printing and screen printing in C++ class methods is the destination of the output. File printing saves the output to a file, while screen printing displays the output on the screen. Additionally, file printing requires the use of the fstream library, while screen printing uses the cout object from the iostream library.
Understanding the role of void in C++ class methods is important because it allows for more efficient and organized coding. By using void methods, you can clearly define which methods are used for performing tasks and which methods are used for returning results. This can make your code easier to read, understand, and maintain.