Chapter 2: Problem 11

include statement D) All of the above # Every C++ program must have a A) cout statement B) function main C) #include statement D) All of the above

Short Answer

Expert verified

A) cout statement B) function main C) #include statement D) All of the above Answer: B) function main

Step by step solution

Analyzing Option A: cout statement

A cout statement is used for displaying output on the screen. It is not mandatory for every C++ program to have a cout statement, as some programs might not have any output to display. Therefore, option A is not necessary for every C++ program.

Analyzing Option B: function main

The main function is the starting point of every C++ program. It is where the execution of the program begins. Without a main function, the program will not run, and the compiler will raise an error. Thus, option B is necessary for every C++ program.

Analyzing Option C: #include statement

The #include statement is used to include external libraries and header files in the C++ program. These libraries and header files offer additional functionality beyond the basic features of the language. While many programs utilize external libraries, not every C++ program requires an #include statement. A simple program without external libraries can still be compiled and executed. Therefore, option C is not necessary for every C++ program.

Conclusion

Based on the analysis of each option, we can conclude that the necessary component for every C++ program is option B) function main. Thus, the correct answer is not D) All of the above, but B) function main.

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include statement D) All of the above # Every C++ program must have a A) cout statement B) function main C) #include statement D) All of the above

Short Answer

Step by step solution

Analyzing Option A: cout statement

Analyzing Option B: function main

Analyzing Option C: #include statement

Conclusion

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