C++
Set hasDigit to true if the 3-character passCode contains a digit.
#include
#include
#include
using namespace std;
int main() {
bool hasDigit;
string passCode;
hasDigit = false;
cin >> passCode;
/* Your solution goes here */
if (hasDigit) {
cout << "Has a digit." << endl;
}
else {
cout << "Has no digit." << endl;
}
return 0;
Answers
Answer:
Add this code the the /* Your solution goes here */ part of program:
for (int i=0; i<3; i++) { //iterates through the 3-character passCode
if (isdigit(passCode[i])) //uses isdigit() method to check if character is a digit
hasDigit = true; } //sets the value of hasDigit to true when the above if condition evaluates to true
Explanation:
Here is the complete program:
#include <iostream> //to use input output functions
using namespace std; // to identify objects like cin cout
int main() { // start of main function
bool hasDigit; // declares a bool type variable
string passCode; //declares a string type variable to store 3-character passcode
hasDigit = false; // sets the value of hasDigit as false initially
cin >> passCode; // reads the pass code from user
for (int i=0; i<3; i++) { //iterate through the 3 character pass code
if (isdigit(passCode[i])) // checks if any character of the 3-character passcode contains a digit
hasDigit = true; } //sets the value of hasDigit to true if the passcode contains a digit
if (hasDigit) { // if pass code has a digit
cout << "Has a digit." << endl;} //displays this message when passcode has a digit
else { //if pass code does not have a digit
cout << "Has no digit." << endl;} //displays this message when passcode does not have a digit
return 0;}
I will explain the program with an example. Lets say the user enters ab1 as passcode. Then the for loop works as follows:
At first iteration:
i = 0
i<3 is true because i=0
if (isdigit(passCode[i]) this if statement has a method isdigit which is passed the i-th character of passCode to check if that character is a digit. This condition evaluates to false because passCode[0] points to the first character of pass code i.e. a which is not a digit. So the value of i is incremented to 1
At second iteration:
i = 1
i<3 is true because i=1
if (isdigit(passCode[i]) this if statement has a method isdigit which is passed the i-th character of passCode to check if that character is a digit. This condition evaluates to false because passCode[1] points to the second character of pass code i.e. b which is not a digit. So the value of i is incremented to 1
At third iteration:
i = 2
i<3 is true because i=2
if (isdigit(passCode[i]) this if statement has a method isdigit which is passed the i-th character of passCode to check if that character is a digit. This condition evaluates to true because passCode[3] points to the third character of pass code i.e. 1 which is a digit. So the hasDigit = true; statement executes which set hasDigit to true.
Next, the loop breaks at i=3 because value of i is incremented to 1 and the condition i<3 becomes false.
Now the statement if (hasDigit) executes which checks if hasDigit holds. So the value of hasDigit is true hence the output of the program is:
Has a digit.
Related Questions
Brian has a meeting to attend at 10:30 am. However, he got stuck in traffic. Everybody at his office was ready for the meeting and had to wait
for him to arrive. What should Brian do in this situation?
OA. He should start walking toward his workplace.
OB. He should wait for someone to call him and ask why he is late,
Ос.
He should inform his manager that he will be late.
OD. He should keep quiet about being late.
Answers
Answer:
C. infirm his manager that he will be late
Explanation:
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Answer:
I think he may be a nut, but I'm not sure, there's little evidence of what he says to be true.
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Answers
Explanation: A genetic algorithm is an intelligent system that mimics the evolutionary, survival-of-the fittest process to generate increasingly better solutions to a problem. Genetic algorithms are used to design aircraftparts such as fan blades etc.
Artificial intelligence system exploits the use of computers and technological devices to simulate the human mind's to solve potential problem concerns and make strategic decisions.
Artificial intelligence is essential due to the fact that it provides businesses with virtually unlimited insights into their operations and in some circumstances, Artificial intelligence can carry out tasks better than people, especially when it comes to recurring, technical-detailed activities like reviewing huge quantities of datasets to ensure essential fields are accurately filled in.
However, Neural networks are based on Deep learning techniques, which are a subfield of machine learning. They're designed by the use of the concept of the human brain, and they work by simulating how real neurons communicate with one another.
In the disciplines of Artificial intelligence and machine learning, neural networks mimic the activity of the human brain, enabling computer programs to identify patterns, formulate strategies and tackle basic problems.
Finally, from the scope of Artificial intelligence, Genetic algorithm emulates the principle of Darwinian selection which chooses only the fittest for reproduction. By replicating the evolutionary path of survival-of-the-fittest to accomplish a stated goal, genetic algorithms could solve difficult issues with numerous variables and a huge number of alternative solutions.
Therefore, from the above explanations, we can conclude that an artificial intelligence system that mimics the evolutionary, survival-of-the-fittest process to generate increasingly better solutions to a problem is known as a Genetic algorithm.
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can java scanner not take in a negative input?
Answers
Answer:
It can take a negative input
Explanation:
When you declare a variable in Java and you get your input via Scanner library; the Scanner library will accept the input irrespective of whether it's negative or not.
Take for instance, the following segment
Scanner input = new Scanner(System.in);
int userinput = input.nextInt()
Irrespective of whether userinput is negative or positive, it'll accept it.
Page No.:
NEW LINK
Date : / /
Write
any
three differences between Hard
Disk and floppy disk.
Answers
Answer:
The difference is that a floppy relies on a floppy disk reader to spin its disk, where as a hard drive is a fully enclosed container that has it's reader enclosed as well. A floppy disk is a single plastic film disk, where as a hard disk can have multiple metal disks.
Explanation:
When an online auction site increases its number of users, then the value of the site increases for everyone. This is an example of the _____.
gig economy
democratization of technology
network effect
Internet of Things
Answers
Answer:
Network Effect
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Answers
Answer:
1. Start
2. A = 1
3. B = 10
4. C = 100
5. X = 0
6. X = C * 3
7. X = X + B * 6
8. X = X + A * 5
9. Print X
10. Stop
Explanation:
Required
Write the Pseudocode for the instruction
The pseudocode begins and ends with a start and stop statement
The next 4 lines initializes A, B, C and X
2. A = 1
3. B = 10
4. C = 100
5. X = 0
The next 3 lines calculates the new value of X base on the given instruction
6. X = C * 3
7. X = X + B * 6
8. X = X + A * 5
This line displays the value of X to the screen
9. Print X
Which of the following devices are used in networking?A. Routers.
B. Hubs.
C. TCP.
D. Switches.
Answers
Answer:
A, Routers
Explanation:
Routers are used
The devices used in networking are:
A. Routers
D. Switches
Thus, option (A) and (D) are correct.
A. Routers: Routers are network devices that facilitate the transfer of data packets between different networks. They determine the best path for data to reach its destination and enable communication between devices on separate networks.
B. Hubs: Hubs were commonly used in early networking but are now outdated. They are passive devices that broadcast data to all connected devices, leading to inefficient data transmission.
C. TCP: TCP (Transmission Control Protocol) is not a networking device but rather a communication protocol used in the transport layer of the TCP/IP protocol suite. It ensures reliable data delivery by establishing a connection between devices and managing data flow control.
D. Switches: Switches are network devices that connect multiple devices within a local area network (LAN). They forward data packets only to the intended recipient, allowing for efficient data transmission within the same network.
Thus, Routers and Switches are parts.
Thus, option (A) and (D) are correct.
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what device copies system files
Answers
Answer:
directs the entire computer system to carry out every activity, and regulates the
Explanation:
An international magazine publisher has commissioned you to do a series of images in black and white. The publisher distributes the magazine primarily in a web format. They want print-ready files. However, the Art Director has also asked for open files, because they may need editing for color correction. They also publish coffee table books. Which file format and workflow will you follow and why?
Answers
Answer:
I need to send black-and-white images in a print-ready format. Therefore, here are the steps I’d follow:
1. First, I’d shoot my images and save them in RAW format. This format would enable anyone to make changes to the images later.
2. I’d use Photoshop to modify or correct the color of the images.
3. I’d convert the images into black-and-white versions.
4. I’d save the selected files in the TIFF format. This method will ensure that the images retain their quality and are print-ready.
5. I’d also convert these files into the JPEG format to get good-quality, low-resolution images for the client’s web publishing.
6. The Art Director requires images that they can modify if required. Therefore, I’ll include files in the TIFF and PSD formats. These are open files, and, therefore, anyone can modify them.
I’d send all these saved copies to the magazine for their work.
Explanation:
This is the answer straight from Plato. I hope that this was helpful to you. Please like and rate my answer if it was! :)
True or False: The correct answer to a numeric entry field will appear only if you click on the fields themselves after selecting Grade It Now. True
Answers
Answer:
True
Explanation:
The numeric entry field will appear when we click the fields after selecting Grade. The selection sort enables the sorting process and displays only the relevant information from the data. This makes finding data easy and saves time. The feature is only available when manually select grade.
The statement that a numeric entry field will appear only if you click on the fields themselves after selecting Grade is True.
This is because, sorting process helps to displays only the relevant information and this will help in locating a particular data without stress.
Therefore, it is correct that the entry field will appear only if you click on the fields themselves after selecting Grade.
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Answers
Answer:
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Answer: Well my sister has a Super Mario Odyssey game for Nintend. The controls are easy to learn but the game is quite difficult. The goal is to find moons to catch up to Browser, who has stolen Mario’s friend, Peach. On the way you run into to challenges that are hard and easy. Overall the game is ballenced well. With amazing details and graphics.
Explanation:
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Answers
Answer:
The unit that a CPU's performance is measured in CPU's performance is dependent on its speed and clock rate. Both the speed and clock rate is measured in hertz or Hz. A core works on one task while another core works on a different task. So the more cores a CPU has, the faster and efficient the computer will be. Single Core CPUs; Single core CPUs are the oldest computer CPUs. These CPUs can only focus on one operation at a time so they were not very good at multi-tasking.
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Explanation:
Clock speed is one of your CPU’s key specifications.
The performance of your CPU has a major impact on the speed at which programs load. However, there are a few different ways to measure processor performance. Clock speed (also “clock rate” or “frequency”) is one of the most significant.
The higher clock speed means a faster CPU.
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Answers
Answer:
disconnect your computer from the network
If you view classified information through the internet on your work computer, either intentionally or inadvertently, disconnect the computer from the network.
What is meant by computer networking?Computer networking is the term for a network of connected computers that may communicate and share resources. These networked devices transmit data through wireless or physical technologies using a set of guidelines known as communications protocols.
A group of computers sharing resources that are available on or offered by network nodes is known as a computer network. Over digital links, the computers communicate with one another using standard communication protocols.
Disconnect the PC from the network if you accidentally or purposely read classified information online while utilizing a business computer.
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What is the value of j after this code is executed? int i = 6, int j=10; j+=i;
Answers
Answer:
16
Explanation:
+= is an assignment operator that adds a value to the existing value.
If I buld a gameing cumpooter wat r al thee parts I ned????
Answers
Answer:
you will need a cpu(core processor unit), Motherboard,RAM(Random access memory), CPU Cooler, GPU(Graphics processor unit or Graphics card), PSU(Power supply unit or power supply), your gonna need storage so either ssd or hdd, and most important of all is a case and case fans, plus if you are going to have a whole setup your gonna need preipherals, so keyboard,mouse, headset, mic, mouse pad, desk, monitors,etc.
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Which kind of testing runs the system in a simulated environment using simulated data?a) validation testing. b) verification testing. c) audit testing. d) matrix testing.
Answers
Answer: verification testing
Explanation:
Verification testing is the testing that runs the system in a simulated environment using simulated data. Verification testing involves different activities like design review, system requirements, business requirements, and code walkthrough which are used while a a product is being developed. It is done in order to ensure they the right product is being developed.
Compare and Contrast the 1977 Freaky Friday and the 2003 Freaky Friday
Answers
Answer:
What do you mean by ?
Explanation:
I can't understand. Please tell clearly.
what is a good rule-of-thumb for using color background in a worksheet?
Answers
Answer: The answer is given below
Explanation:
A good rule-of-thumb for using color background in a worksheet are:
• Avoid using more than four colors as ideally 2-3 colors should be used.
• Opt for tones, shades, and tints rather than being tempted to use many colors.
• Colors that are controversial should be avoided.
• Color should be added when it's required to pass across a message.
• A base color should first be selected, then complementary colors should be added to it.
If a computer system does not have a graphics card installed in a motherboard's PCIe slot, which component handles video calculations? a) The hard drive and memory cards b) The CPU or a chip on the motherboard c) The optical drive d) The solid-state drive or the memory cards
Answers
Answer:The Cpu or a chip on the Motherboard
Explanation: yore welcome
Answer is B because portrait is define that they take only photographs of people and like to communicate with people they are well known or comfortable.
Answers
Online servers that can be accessed through the internet are an example of RAM.
O True
O False
Answers
Answer:
False
Explanation:
Answer:
The answer is False because I just took a test
Write a program to print the sum of two given numbers.
Answers
Answer:
this program is for c++
Explanation:
#include<iostream>
main()
{
int num1,num2,added number;
cout<<"enter your first number";
cin>>num1;
cout<<"enter your second number":
cin>>num2:
num3=num1+num2;
cout<<"the added value of these two are",num3;
}
List four significant differences between a file-processing system and a database management system (DBMS).
Answers
Answer is given below
Explanation:
differences between a file-processing system and a database management system is given below
file-processing system
File system is a software that manages and organizes the files in a storage medium within a computer.It doesn’t provide backup and recovery of data if it is lost.There is less data consistency in file system.File systems provide less security in comparison to DBMS.It is less complex as compared to DBMS.database management system
DBMS is a software for managing the databaseIt provides backup and recovery of data even if it is lost.DBMS has more security mechanisms as compared to file systemIt has more complexity in handling as compared to file system.There is more data consistency because of the process of normalization.You can access cloud files from any computer smart phone or tablet as long as it is connected to the Internet is it true or false
Answers
Answer:yes
Explanation:
because it is the internet
Which of the following is not a property of a constructor?A. The name of a constructor can be chosen by the programmerB. A constructor is called using the new operatorC. A constructor must have the same name as the classD. Constructors may be overloaded
Answers
Answer:
The answer is "Option A"
Explanation:
The constructor is a special member function whose task is to initialize an object from its class, and it doesn't return any value like int, float, double, etc. Its name and class name will always be the same, and when we create the class object so, the constructor is automatically called, and it may be overloaded, that's why we can say that except the "choice A", all were correct.
You resurrected an old worksheet. It appears to contain most of the information that you need, but not all of it. Which step should you take next?
a) Check for data you have previously hidden.
b) Make the columns wider.
c) Check that the worksheet is not Read-Only.
d) Change the format to reduce the font size.
Answers
Answer:
a)
Explanation:
Since the worksheet contains most of the data that you need, there is a decent possibility that it also contains the data that you are missing. Therefore, you should check for data you have previously hidden. Sometimes, some data in a worksheet may become irrelevant in a given moment, and instead of deleting it since it may be useful later most people tend to make that data hidden. So checking for previously hidden data may be the best solution in this scenario.
Select the trait that best matches the description.
is the willingness to put a customer's needs above one's own needs and
to go beyond a job description to achieve customer satisfaction.
is the ability to make decisions based on logic instead of emotions.
M is the ability to cope during periods of stress,
is the willingness to have new and varied experiences.
Answers
Answer:1Customer service orientation
2Tough mindedness
3Emotional resilience
4Openness
Explanation:I did the assignment and got it right
Write a JAVA CODE recursive function that when passed a value n displaysn (n-1) (n-2) (n-3) ... 0 ... (n-3) (n-2) (n-1) nfor example, if passed 5 displays 5 4 3 2 1 0 1 2 3 4 5
Answers
//Begin class declaration
public class RecursiveFunction {
//Write function
//It takes in an int value as parameter
//And returns a string value.
public static String recursivefn(int n){
//Check the value of variable n
//If the value is less than or equal to 0
//Return the string "0"
if(n <= 0){
return "0";
}
//If n is not less than or equal to zero,
//return a string that has:
//1. n,
//2. followed by a space,
//3. followed by another call to the function with n - 1
//4. followed by a space,
//5. followed by n
return n + " " + recursivefn(n-1) + " " + n;
}
//Begin main method
public static void main(String []args){
//Call the recursivefn() on 5
System.out.println(recursivefn(5));
} //End of main method
} //End of class declaration
Sample Output:5 4 3 2 1 0 1 2 3 4 5
Explanation:The code has been written in Java. It contains comments explaining important parts of the code. Please go through the comments.
A sample output has also been provided.
The program file and a screenshot of the output have also been attached to this response.