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Chapter 2: Problem 3

Every \(\mathrm{C}++\) program must have a function named ___________.

Short Answer

Expert verified
Answer: The entry point of every C++ program is the function named "main".

Step by step solution

01

Required Function Name

Every C++ program must have a function named "main". This function serves as the entry point of the program and marks the beginning of the program's execution.
02

The Main Function

The "main" function has a specific syntax and typically returns an integer to the operating system. Here's a simple example of the main function: ```cpp #include int main() { std::cout << "Hello, World!" << std::endl; return 0; } ``` In this example, the "main" function outputs "Hello, World!" to the console and returns 0 to the operating system, indicating a successful execution.

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Most popular questions from this chapter

Write assignment statements that perform the following operations with int variable 1 double variables \(d 1\) and \(\mathrm{d} 2,\) and char variable \(c\) A) Add 2 to \(d 1\) and store the result in \(d 2\). B) Multiply \(d 2\) time 4 and store the result in \(d 1\). C) Store the character 'X' in c. D) Store the ASCII code for the character ' \(K\) ' in 1 . E) Subtract 1 from 1 and store the result back in 1

Algorithm Workbench. Create detailed pseudo code for a program that calculates how many days are left until Christmas, when given as an input how many weeks are left until Christmas. Use variables named weeks and days.

Write assignment statements that perform the following operations with int variable 1 double variables \(d 1\) and \(d 2\), and char variable \(c\). A) Subtract 8.5 from \(\mathrm{d} 2\) and store the result in \(\mathrm{d} 1\) B) Divide \(d 1\) by 3.14 and store the result in \(d 2\). C) Store the ASCII code for the character ' \(\mathrm{B}\) ' in \(\mathrm{c}\). D) Add 1 to i and store the new value back in 1. E) Add d1 to the current value of \(d 2\) and store the result back in \(d 2\) as its new value.

Assume \(x=4, y=7,\) and \(z=2 .\) What value will be stored in integer variable result by cach of the following statements? A) result \(=x+y\) B) result \(=y \cdot 2:\) C) result \(=y / z:\)

Assume \(x=2.5, y=7.0,\) and \(z=3 .\) What value will be stored in integer variable result by each of the following statements? A) result \(=x+y:\) B) result \(=y \cdot 2:\) C) result \(=y / z:\)
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