/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 10 What does the following program ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 5: Problem 10

What does the following program segment display? int f = 7, s = 15; f = s % 2; if (f != 1) { f = 0; s = 0; } else if (f == 2) { f = 10; s = 10; } else { f = 1; s = 1; } Console.WriteLine(" " + f + " " + s); a. 7 15 b. 0 0 c. 10 10 d. 1 1 e. none of the above

Short Answer

Expert verified
The program displays " 1 1".

Step by step solution

01

Understand the Initial Variables

The variables are initialized as follows: - `int f = 7;` - `int s = 15;` These initialize `f` to 7 and `s` to 15.
02

Evaluate the Expression `s % 2`

The expression `s % 2` computes the remainder when `s` (which is 15) is divided by 2. The calculation is: - 15 divided by 2 is 7 quotient with a remainder of 1. Thus, `s % 2` evaluates to 1. Assign this value to `f`, so now `f` becomes 1.
03

Evaluate the `if` Statement

The `if` condition checks if `f` is not equal to 1: `if (f != 1)`. Since `f` is 1 after the last step, this condition is false.
04

Evaluate the `else if` Statement

The `else if` condition checks if `f` equals 2: `else if (f == 2)`. Since `f` is 1, this condition is also false.
05

Execute the `else` Block

Since both the `if` and `else if` conditions are false, the program executes the `else` block. This sets `f` to 1 and `s` to 1.
06

Display the Values of `f` and `s`

The statement `Console.WriteLine(" " + f + " " + s);` will execute. It prints the values of `f` and `s`, each preceded by a space. Both `f` and `s` are now 1, so the output is: " 1 1".

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.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Understanding Conditional Statements
Conditional statements are a fundamental concept in C# programming used to make decisions based on certain conditions. In our program segment, `if`, `else if`, and `else` statements guide the flow of execution.
  • `if` Statement: It checks a particular condition. If the condition evaluates as true, the block of code inside the `if` statement is executed. In our example, the condition `if (f != 1)` checks whether `f` is not equal to 1.
  • `else if` Statement: Used for additional conditions if the initial `if` condition is false. Here, `else if (f == 2)` checks if `f` equals 2.
  • `else` Statement: It executes a block of code if none of the prior conditions were true. In our case, when both the initial conditions were false, `f` and `s` are set to 1 inside the `else` block.
Understanding this flow helps in directing which parts of a program are executed and is crucial for developing logical solutions.
The Modulus Operator in Action
The modulus operator, represented by `%`, is used in C# programming to find the remainder of a division between two numbers. In our exercise, the expression `s % 2` calculates the remainder of 15 divided by 2.
When you divide 15 by 2, you get:
  • A quotient of 7 (as 2 fits into 15, seven times)
  • A remainder of 1 (since 15 minus 14 equals 1)
So, `s % 2` results in 1. This value is then assigned to the variable `f`, changing its original value to match the remainder. The modulus operator is particularly useful when you're interested in whether numbers are odd or even, as seen in this demonstration.
Initializing Variables in C#
Variable initialization is the process of assigning an initial value to a variable at the time of its declaration. This is a critical step in programming as it sets a starting point for the variable to be used throughout the program. In our program, variables `f` and `s` are initialized like this:
  • `int f = 7;` initializes `f` with the value 7.
  • `int s = 15;` initializes `s` with the value 15.
Initializing variables helps in keeping them defined and ready to use in expressions or operations. Without proper initialization, a variable might contain garbage values, leading to unpredictable outcomes. For clean and efficient code, always initialize your variables before using them.
Creating Console Output
Console output is a common way to display information to the user in C# programs, typically for debugging or interaction purposes. The `Console.WriteLine` method allows you to print values or messages to the console.
In the given exercise, `Console.WriteLine(" " + f + " " + s);` is used to output the values of variables `f` and `s`. Here's what happens:
  • A blank space precedes the variables for clearer output formatting.
  • Both `f` and `s` were set to 1 in the `else` block, so the console displays: " 1 1".
Knowing how to effectively use console output can greatly aid in understanding how your code behaves and is especially useful during the testing and debugging phases.

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

What is the result of the following conditional expression when aValue = 100 and bValue = 7? result = aValue > bvalue + 100 ? 1000 : 2000; a. 0 b. 1000 c. 2000 d. 7 e. none of the above

The result of the expression if (avalue \(==10\) ) is: a. true or false b. 10 c. an integer value d. aValue e. determined by an input statement

The ___________ operator represents the logical AND. a. ++ b. || c. && d. @ e. none of the above

Which expression is evaluated first in the following statement? if ( a > b && c == d || a == 10 && b > a + 7)? a. a>b b. b && c c. d || a d. a+7 e. none of the above

The string data type can be used: a. as an operand for the == or != b. as an expression in the switch statement to be evaluated c. as an operand for the > or < operator d. a and b are correct e. all of the above
See all solutions

Recommended explanations on Computer Science Textbooks

Computer Network

Read Explanation

Databases

Read Explanation

Functional Programming

Read Explanation

Computer Organisation and Architecture

Read Explanation

Cybersecurity in Computer Science

Read Explanation

Computer Programming

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.