Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 2: Problem 12

Which of the following are not valid cout statements? A) cout \(<<\) "Hello world" B) cout \(<<\) Hello world; C) cout \(<<\) "Hello" \(<<\) " world"

Short Answer

Expert verified
A: cout << "Hello world" B: cout << Hello world; C: cout << "Hello" << " world" Answer: B

Step by step solution

01

Understanding cout syntax

To understand the proper syntax for the cout statement in C++, note that it makes use of the insertion operator << and quotes are essential when directly outputting a string.
02

Analyzing Option A

The cout statement is `cout << "Hello world"`. The syntax appears correct; there are double quotes around the string "Hello world" and the insertion operator << is used. This is a validcout statement.
03

Analyzing Option B

The cout statement is `cout << Hello world;`. There are no double quotes around the string "Hello world". The absence of quotes makes this statement invalid.
04

Analyzing Option C

The cout statement is `cout << "Hello" << " world"`. There are double quotes around the two individual strings "Hello" and " world". The insertion operator << is used, and it is valid to chain multiple << operators together. This is a valid coutstatement.
05

Conclusion

Option B is not a valid cout statement due to the lack of double quotes around the string "Hello world". Options A and C are both valid cout statements.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

If the variable letter has been defined as a char variable, which of the following are not valid assignment statements? A) 1 etter \(=w\) B) letter = "w': C) letter = "W":

The character constant 'A' requires __________ byte(s) of memory, whereas the string constant "A"requires _________byte(s).

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 \(=y / z:\)

Fill-in-the-Blank and Short Answer Every complete statement ends with a _____________.

Create detailed pseudo code for a program that determines how many full 12 egg cartons of cggs a farmer can pack when given as an input the number of eggs he has collected on a given day, Use variables named eggs and cartons.
See all solutions

Recommended explanations on Computer Science Textbooks

Problem Solving Techniques

Read Explanation

Computer Programming

Read Explanation

Computer Network

Read Explanation

Issues in Computer Science

Read Explanation

Functional Programming

Read Explanation

Big Data

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free