Computers And Technology College

Write Arduino code to shift data into the shift register and light up the LEDs sequentially, with a delay of 1 second between each light. Make sure that at most 1 LED can be ON at any moment.

Answers

Answer 1

The Arduino language is very similar to the one found in C language.

In order to make a counter e.g 0 to 255. It is necessary to take into consideration that is needed at least 8 LEDs.

For this, it can be used the IC 74HC595 counter. The datasheet you can find easily in the internet

Code

//write the following code into your Arduino IDE

//Input plugged to ST_CP of IC

int latchInput = 8;

//Input plugged to SH_CP of IC

int clockInput = 12;

////Input plugged to DS of IC

int dataInput = 11;

void

setup ()

{

Serial.begin (9600);

InputMode (latchInput, OUTPUT);

}

void

loop ()

{

//count up routine

for (int j = 0; j < 256; j++)

{

//ground latch Input and hold low for as long as you are transmitting

digitalWrite (latchInput, 0);

//countup on GREEN LEDs

shiftOut (dataInput, clockInput, j);

//countdown on RED LEDs

shiftOut (dataInput, clockInput, 255 - j);

//return the latch Input high to signal chip that it

digitalWrite (latchInput, 1);

delay (1000);

}

void

shiftOut (int myDataInput, int myClockInput, byte myDataOut)

{

// This shifts 8 bits out MSB first,

//on the rising edge of the clock,

//clock idles low

.. //internal function setup

int i = 0;

int InputState;

InputMode (myClockInput, OUTPUT);

InputMode (myDataInput, OUTPUT);

. //clear everything out just in case to

. //prepare shift register for bit shifting

digitalWrite (myDataInput, 0);

digitalWrite (myClockInput, 0);

//for each bit in the byte myDataOut�

//NOTICE THAT WE ARE COUNTING DOWN in our for loop

//This means that %00000001 or "1" will go through such

//that it will be Input Q0 that lights.

for (i = 7; i >= 0; i--)

{

digitalWrite (myClockInput, 0);

//if the value passed to myDataOut and a bitmask result

// true then... so if we are at i=6 and our value is

// %11010100 it would the code compares it to %01000000

// and proceeds to set InputState to 1.

if (myDataOut & (1 << i))

{

InputState = 1;

}

else

{

InputState = 0;

}

//Sets the Input to HIGH or LOW depending on InputState

digitalWrite (myDataInput, InputState);

//register shifts bits on upstroke of clock Input

digitalWrite (myClockInput, 1);

//zero the data Input after shift to prevent bleed through

digitalWrite (myDataInput, 0);

}

//stop shifting

digitalWrite (myClockInput, 0);

}

Related Questions

Cell signaling involves converting extracellular signals to specific responses inside the target cell. Which of the following best describes how a cell initially responds to a signal?
a. the cell experiences a change in receptor conformation
b. the cell experiences an influx of ions
c. the cell experiences an increase in protein kinase activity
d. the cell experiences G protein activation
e. the cell membrane undergoes a calcium flux

Answers

The cell experiences a change in receptor conformation is the following best describes how a cell initially responds to a signal.

What is Cell signaling?

Cell signaling is the process by which cells communicate with each other and respond to changes in their environment. It involves the transfer of information from outside the cell to the inside, and the subsequent response of the cell. This is accomplished through the recognition of signaling molecules by specific receptors on the cell membrane, which can initiate a cascade of events inside the cell. These events may include changes in the activity of enzymes, changes in ion transport, changes in gene expression, or changes in the shape of the cell.

a. the cell experiences a change in receptor conformation

The process of cell signaling often begins with a change in the conformation of a receptor on the cell membrane, triggered by the binding of a signaling molecule.

This change in receptor conformation can initiate a cascade of events inside the cell, leading to a specific response. The change in receptor conformation can also activate enzymes, such as protein kinases, or activate signaling molecules, such as G proteins, leading to further downstream events and ultimately a specific response.

Calcium flux can also be involved in some signaling pathways, but it is not necessarily the initial response to a signal.

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What device to use when downloading a large file?

Answers

Pc is a device to downloading load file

Consider the following classes.
public class Dog
{
/* code */
}

public class Dachshund extends Dog
{
/* code */
}
Assuming that each class has a default constructor, which of the following are valid declarations?

I. Dog sadie = new Dachshund();
II. Dachshund aldo = new Dachshund();
III. Dachshund doug = new Dog();

Group of answer choices

I only

II only

III only

I and II only

II and III only

Answers

Assuming that each class has a default constructor, Only I and II are valid declarations.

What is default constructor?

In object-oriented programming, a constructor is a special method that is called when an object is created. It initializes the object's data members and prepares the object for use.

Dog sadie = new Dachshund();

This is valid because Dachshund is a subclass of Dog, so a Dachshund object can be assigned to a Dog variable.

Dachshund aldo = new Dachshund();

This is also valid because it creates a Dachshund object and assigns it to a Dachshund variable.

Dachshund doug = new Dog();

This is not valid because a Dog object cannot be assigned to a Dachshund variable. While a Dachshund is a Dog, a Dog is not necessarily a Dachshund.

Thus, only I and II are valid declarations.

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Suppose that list1 = [2,33,22,14,25], what would the output for list1[O] be?

Answers

Answer:

...Can someone help the human because I really don't know this question...

Question 18 of 20:
Select the best answer for the question.
18. Illegally downloading media such as music or movies is called
O A. plagiarism.
OB. harassment.
OC. bullying.
D. piracy.

Answers

Answer:

A is the answer

Explanation:

we don't have to bully some one if they are not nice or their skin colour

you're trying to diagnose why a system is not connecting to the internet. you've been able to find out that your system's ip address is 169.254.0.0. which of the following statements correctly suggests the next best step?

Answers

The next best step is indicated by one of the following statements: use the Internet browser to access the router configuration at 169.254.0.0.

On a Mac, how can I fix the 169.254 IP address?

Switch off the computer that is having a problem. Your modem, wireless access point, and router should all be powered off. After unplugging it for a moment, plug the power back in to turn them back on. Check to see if the correct IP Address has been assigned after turning on your computer.

What purpose does 169.254 169.254 serve?

In the world of the cloud, the 169.254 IP address is referred to as a "magic" IP; in AWS, it is used to get user data and instance-specific metadata. It is only accessible locally from instances and isn't protected by encryption or authentication.

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Algorithm:

Suppose we have n jobs with priority p1,…,pn and duration d1,…,dn as well as n machines with capacities c1,…,cn.

We want to find a bijection between jobs and machines. Now, we consider a job inefficiently paired, if the capacity of the machine its paired with is lower than the duration of the job itself.

We want to build an algorithm that finds such a bijection such that the sum of the priorities of jobs that are inefficiently paired is minimized.

The algorithm should be O(nlogn)

My ideas so far:

1. Sort machines by capacity O(nlogn)
2. Sort jobs by priority O(nlogn)
3. Going through the stack of jobs one by one (highest priority first): Use binary search (O(logn)) to find the machine with smallest capacity bigger than the jobs duration (if there is one). If there is none, assign the lowest capacity machine, therefore pairing the job inefficiently.

Now my problem is what data structure I can use to delete the machine capacity from the ordered list of capacities in O(logn) while preserving the order of capacities.

Your help would be much appreciated!

Answers

To solve the problem efficiently, you can use a min-heap data structure to store the machine capacities.

Here's the algorithm:

Sort the jobs by priority in descending order using a comparison-based sorting algorithm, which takes O(nlogn) time.

Sort the machines by capacity in ascending order using a comparison-based sorting algorithm, which also takes O(nlogn) time.

Initialize an empty min-heap to store the machine capacities.

Iterate through the sorted jobs in descending order of priority:

Pop the smallest capacity machine from the min-heap.

If the machine's capacity is greater than or equal to the duration of the current job, pair the job with the machine.

Otherwise, pair the job with the machine having the lowest capacity, which results in an inefficient pairing.

Add the capacity of the inefficiently paired machine back to the min-heap.

Return the total sum of priorities for inefficiently paired jobs.

This algorithm has a time complexity of O(nlogn) since the sorting steps dominate the overall time complexity. The min-heap operations take O(logn) time, resulting in a concise and efficient solution.

Answers

On windows go to your file explorer right click on an empty space then click new text file. Type what you want on the text file then click at the top left of that window “file” then “save as” then in the typing bar at the bottom of the new window rename whatever was there to “cyber security” then change where you want to place that file and click enter

k-means clustering cannot be used to perform hierarchical clustering as it requires k (number of clusters) as an input parameter. True or False? Why?

Answers

Answer:

false

Explanation:

its false

Design a class named StockTransaction that holds a stock symbol (typically one to four characters), stock name, number of shares bought or sold, and price per share. Include methods to set and get the values for each data field. Create the class diagram and write the pseudocode that defines the class.
Design a class named FeeBearingStockTransaction that descends from StockTransaction and includes fields that hold the commission rate charged for the transaction and the dollar amount of the fee. The FeeBearingStockTransaction class contains a method that sets the commission rate and computes the fee by multiplying the rate by transaction price, which is the number of shares times the price per share. The class also contains get methods for each field.
Create the appropriate class diagram for the FeeBearingStockTransaction class and write the pseudocode that defines the class and the methods.
Design an application that instantiates a FeeBearingStockTransaction object and demonstrates the functionality for all its methods.

Answers

The class diagram and pseudocode for the StockTransaction class is given below

What is the class?

plaintext

Class: StockTransaction

-----------------------

- symbol: string

- name: string

- shares: int

- pricePerShare: float

+ setSymbol(symbol: string)

+ getSymbol(): string

+ setName(name: string)

+ getName(): string

+ setShares(shares: int)

+ getShares(): int

+ setPricePerShare(price: float)

+ getPricePerShare(): float

Pseudocode for the StockTransaction class:

plaintext

Class StockTransaction

Private symbol as String

Private name as String

Private shares as Integer

Private pricePerShare as Float

Method setSymbol(symbol: String)

Set this.symbol to symbol

Method getSymbol(): String

Return this.symbol

Method setName(name: String)

Set this.name to name

Method getName(): String

Return this.name

Method setShares(shares: Integer)

Set this.shares to shares

Method getShares(): Integer

Return this.shares

Method setPricePerShare(price: Float)

Set this.pricePerShare to price

Method getPricePerShare(): Float

Return this.pricePerShare

End Class

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Suppose a Huffman tree is to be built for 5 characters. Give a set of 5 characters, and their distinct probabilities (no duplicates), that would result in the tallest possible tree. Show the tree. Derive the average code length: write the expression, you don't have to simplify it down to a single value.

Answers

I love chipotle do you live chipotle

# Activity 1
# This activity has the objective of practicing
# how to write if statements.
# For this example there are four kinds of flowers:
# 1. Blue and small ( less than 2 inches in size)
# 2. Blue and large ( >= inches in size)
# 3. Red and small
# 4. Red and large
# The user is prompted to enter the color and
# the size of the flower and you will
# print the corresponding kind of flower

Answers

The If-statement that is made up for the given activity is given below:

How to write an IF Statement

# 1. Blue and small ( less than 2 inches in size)

If Blue is less than 2 inches in size

Print "This is blue and small"

# 2. Blue and large ( >= inches in size)

If Blue is greater than 6 inches in size

Print "This is blue and large"

# 3. Red and small

Loop

# 4. Red and large

End

Answers

Answer:

Just keep playing

Explanation:

That’s so how

Answer:

If inposter look afk and they will think you are afk and vote everyone else out

(;

Parsing a string

A string is a sequential object that has zero, one or many characters. This lab asks you to ask the user for a string and then count the number of digits in the string.

NOTE: You must do this with a WHILE loop, not a FOR.

How can you tell if a character is a digit? If you have a string variable named str, you. can make a Boolean expression that will be True by doing this: str.isdigit() So if I code: str="spam" then str.isdigit() will be False But if I code: str =. "1984" then str.isdigit() will evaluate to True.

The strings will have digits and non-digits mixed. You must look at each character of the string by itself. You do this by indexing the string. If i is an index variable, then str[i] will give you the character at the i-th position in the string (remembering that it is indexed from zero).

Answers

The program is an illustration of loops

Loops are used to perform repetitive and iterating operations.

The program in Java, where comments are used to explain each line is as follows:

import java.util.*;

public class Main{

public static void main(String[] args) {

//This creates a Scanner object

Scanner input = new Scanner(System.in);

//This declares a string, and also gets input for the string

String word = input.nextLine();

//This declares all variables

int count = 0, countChars = 0;

//This iterates through the characters, using a while loop

while(countChars <word.length()){

//This checks if the current character is a digit

if(Character.isDigit(word.charAt(countChars))){

//If yes, this increases the count of characters by 1

count++;

}

//This increments the character index

countChars++;

}

//This prints the number of digits

System.out.print(count);

}

At the end of the program, the number of digits are printed.

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Perfrom traceroute of an ip address in Australia

Answers

How to perform a typical traceroute on an IP address using CMD command is given below:

The Steps

In case you're striving to perform a traceroute operation on an IP address, either using Windows or Mac computer systems, the following guidelines will provide assistance.

Windows users may select the Windows key and R simultaneously, enter "cmd," hit Enter. In comparison, users operating with the Mac OS should navigate through Finder by visiting Applications -> Utilities and double-clicking Terminal.

To get started with the procedure, insert the word "traceroute," and proceed by entering the specific IP address that you desire to locate. Even if searching for information on 203.0.113.1, simply input "traceroute 203.0.113.1." At this stage, submit and wait until the validation is done.

This method ascertains the path taken by packets across the network. It indicates the number of jumps made, along with their response time at every stage. One aspect to bear in mind is some routers/firewalls may block access thereby leading to incomplete outcomes.

Answers

Answer:B. What you hope to achieve through your communication

Explanation:

2. How can recovery handle transaction operations that do not affect the database, such as the printing of reports by a transaction?

Answers

Answer:

Explanation:

great question but dont know

What is characteristic of the Computer?

Answer: Speed, a computer works with much higher speed.

Answers

Answer:

storage to store the data and files

accuracy, diligence, versatility and storage capacity.

7.2 need help plzs 15 points

Answers

So you have to read it and make it a pronoun

describe usage about hand geometry biometric?

Answers

Biometrics for hand geometry recognition are less obvious than those for fingerprint or face recognition. Despite this, it is nevertheless applicable in numerous time/attendance and physical access applications.

What is Hand geometry biometric?

The concept that each person's hand geometry is distinct is the foundation of hand geometry recognition biometrics.

There is no documented proof that a person's hand geometry is unique, but given the likelihood of anatomical structure variance across a group of people, hand geometry can be regarded as a physiological trait of humans that can be used to distinguish one person from another.

David Sidlauskas first proposed the idea of hand geometry recognition in 1985, the year after the world's first hand geometry recognition device was commercially released.

Therefore, Biometrics for hand geometry recognition are less obvious than those for fingerprint or face recognition. Despite this, it is nevertheless applicable in numerous time/attendance and physical access applications.

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1. Write a program in java that lets the user play the game of Rock, Paper, and Scissors against the computer. The program should work as follows:

• When the program begins, a random number in the range of 1 through 3 is generated. If the number is 1, then the computer has chosen rock. If the number is 2, then the computer has chosen paper. If the number is 3, then the computer has chosen scissors.

• The user enters his or her choice of “rock”, “paper”, or “scissors” at the keyboard.

• Display the computer’s choice.

• Display the winner.

• If both players make the same choice, then the game must be played again to determine the winner.

Answers

Here's a Java program that allows the user to play Rock, Paper, Scissors against the computer:

java
Copy code
import java.util.Scanner;
import java.util.Random;

public class RockPaperScissors {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
Random random = new Random();
String[] choices = {"rock", "paper", "scissors"};
int computerChoice = random.nextInt(3) + 1;

System.out.print("Enter your choice (rock, paper, scissors): ");
String userChoice = input.nextLine().toLowerCase();

System.out.println("The computer's choice is " + choices[computerChoice - 1]);

if (userChoice.equals(choices[computerChoice - 1])) {
System.out.println("It's a tie! Play again.");
} else if ((userChoice.equals("rock") && computerChoice == 3) ||
(userChoice.equals("paper") && computerChoice == 1) ||
(userChoice.equals("scissors") && computerChoice == 2)) {
System.out.println("You win!");
} else {
System.out.println("The computer wins!");
}
}
}
Explanation:

First, we import the necessary classes: Scanner to read input from the user and Random to generate a random integer.
We create an array choices that contains the three possible choices for the game.
We use Random to generate a random integer between 1 and 3, which corresponds to the computer's choice.
We prompt the user to enter their choice and read it with Scanner. We convert the user's input to lowercase for easier comparison later on.
We display the computer's choice by accessing the corresponding element in the choices array.
We use a series of if statements to determine the winner. If the user's choice and the computer's choice are the same, we display a tie message and exit the program. Otherwise, we check the possible winning combinations (rock beats scissors, paper beats rock, scissors beat paper) and display the winner accordingly.
Note that this program only allows for one round of the game. If the user and the computer tie, the program will prompt the user to play again. To allow for multiple rounds, you could put the entire game logic inside a while loop and keep track of the score.

The program in java that lets the user play the game of Rock, Paper, and Scissors against the computer is in the explanation part.

What is programming?

The process of creating a set of instructions that tells a computer how to perform a task is known as programming.

Computer programming languages such as JavaScript, Python, and C++ can be used to create programs.

Here's a possible implementation of the Rock, Paper, Scissors game in Java:

import java.util.Random;

import java.util.Scanner;

public class RockPaperScissors {

public static void main(String[] args) {

Random rand = new Random();

Scanner sc = new Scanner(System.in);

String[] choices = {"rock", "paper", "scissors"};

while (true) {

// Computer's choice

int compChoiceIdx = rand.nextInt(choices.length);

String compChoice = choices[compChoiceIdx];

// User's choice

System.out.print("Enter your choice (rock, paper, or scissors): ");

String userChoice = sc.nextLine();

// Display computer's choice

System.out.println("Computer chooses " + compChoice + ".");

// Determine the winner

if (userChoice.equals(compChoice)) {

System.out.println("It's a tie. Let's play again.");

} else if (userChoice.equals("rock") && compChoice.equals("scissors") ||

userChoice.equals("paper") && compChoice.equals("rock") ||

userChoice.equals("scissors") && compChoice.equals("paper")) {

System.out.println("You win!");

break;

} else {

System.out.println("Computer wins!");

break;

}

sc.close();

}

Thus, this program uses a Random object to generate a random number in the range of 1 through 3, which is used to determine the computer's choice of rock, paper, or scissors.

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Write a SELECT statement that selects all of the columns for the catalog view that returns information about foreign keys. How many foreign keys are defined in the AP database?

Answers

Answer:

SELECT COUNT (DISTICT constraint_name)

FROM apd_schema.constraint_column_usage

RUN

Explanation:

General syntax to return a catalog view of information about foreign keys.

SELECT DISTINCT PARENT_TABLE =

RIGHT(Replace(DC.constraint_name, 'fkeys_', ''),

Len(Replace(DC.constraint_name, 'fkeys_', '')) - Charindex('_', Replace(DC.constraint_name, 'fkeys_', ''))),

CHILD_TABLE = DC.table_name,

CCU.column_name,

DC.constraint_name,

DC.constraint_type

FROM apd_schema.table_constraints DC

INNER JOIN apd_schema.constraint_column_usage CCU

ON DC.constraint_name = CCU.constraint_name

WHERE DC.constraint_type LIKE '%foreign'

OR DC.constraint_type LIKE '%foreign%'

OR DC.constraint_type LIKE 'foreign%'

RUN

And office now has a total of 35 employees 11 were added last year the year prior there was a 500% increase in staff how many staff members were in the office before the increase

Answers

There were 5 staff members in the office before the increase.

To find the number of staff members in the office before the increase, we can work backward from the given information.

Let's start with the current total of 35 employees. It is stated that 11 employees were added last year.

Therefore, if we subtract 11 from the current total, we can determine the number of employees before the addition: 35 - 11 = 24.

Moving on to the information about the year prior, it states that there was a 500% increase in staff.

To calculate this, we need to find the original number of employees and then determine what 500% of that number is.

Let's assume the original number of employees before the increase was x.

If we had a 500% increase, it means the number of employees multiplied by 5. So, we can write the equation:

5 * x = 24

Dividing both sides of the equation by 5, we find:

x = 24 / 5 = 4.8

However, the number of employees cannot be a fraction or a decimal, so we round it to the nearest whole number.

Thus, before the increase, there were 5 employees in the office.

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4.3 lesson practice phython

Answers

Answer:

user input loop

count variable

user input

Explanation:

these are you answers

who plays Counter blox or counter strike

Answers

Answer:

Explanation:

csgo

Answer: not me

Explanation:

What is the importance of knowing the concept of programming?

Answers

Answer:

Computer programming is important today because so much of our world is automated. Humans need to be able to control the interaction between people and machines. Since computers and machines are able to do things so efficiently and accurately, we use computer programming to harness that computing power.

7. Develop an algorithm using pseudocode to show whether a given number is even or odd

Answers

Answer:

Calculate the remainder after division by 2If remainder is 0, number is even, odd otherwise

1. A network administrator was to implement a solution that will allow authorized traffic, deny unauthorized traffic and ensure that appropriate ports are being used for a number of TCP and UDP protocols.
Which of the following network controls would meet these requirements?
a) Stateful Firewall
b) Web Security Gateway
c) URL Filter
d) Proxy Server
e) Web Application Firewall
Answer:
Why:
2. The security administrator has noticed cars parking just outside of the building fence line.
Which of the following security measures can the administrator use to help protect the company's WiFi network against war driving? (Select TWO)
a) Create a honeynet
b) Reduce beacon rate
c) Add false SSIDs
d) Change antenna placement
e) Adjust power level controls
f) Implement a warning banner
Answer:
Why:
3. A wireless network consists of an _____ or router that receives, forwards and transmits data, and one or more devices, called_____, such as computers or printers, that communicate with the access point.
a) Stations, Access Point
b) Access Point, Stations
c) Stations, SSID
d) Access Point, SSID
Answer:
Why:

4. A technician suspects that a system has been compromised. The technician reviews the following log entry:
 WARNING- hash mismatch: C:\Window\SysWOW64\user32.dll
 WARNING- hash mismatch: C:\Window\SysWOW64\kernel32.dll
Based solely ono the above information, which of the following types of malware is MOST likely installed on the system?
a) Rootkit
b) Ransomware
c) Trojan
d) Backdoor
Answer:
Why:
5. An instructor is teaching a hands-on wireless security class and needs to configure a test access point to show students an attack on a weak protocol.
Which of the following configurations should the instructor implement?
a) WPA2
b) WPA
c) EAP
d) WEP
Answer:
Why:

Answers

Network controls that would meet the requirements is option a) Stateful Firewall

Security measures to protect against war driving: b) Reduce beacon rate and e) Adjust power level controlsComponents of a wireless network option b) Access Point, StationsType of malware most likely installed based on log entry option a) RootkitConfiguration to demonstrate an attack on a weak protocol optio d) WEP

What is the statement about?

A stateful firewall authorizes established connections and blocks suspicious traffic, while enforcing appropriate TCP and UDP ports.

A log entry with hash mismatch for system files suggest a rootkit is installed. To show a weak protocol attack, use WEP on the access point as it is an outdated and weak wireless network security protocol.

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Summarise the historical development of computer programming since 1980s.

Answers

The historical development of computer programming since 1980s is given below:

What is Computer Programming?

Computer Programming was known to have started when the first ever computer programmer was said to be made by the English noblewoman known as Ada Lovelace.

In 1843, she was said to have written some work on a sequence of steps to carry out using a computing machine and it is known to be set up by her friend known as Charles Babbage. These notes are seen as the first computer program.

Note that in the 1980's a good amount of home programming was done in BASIC.

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How do you increase the number of tries by one?

tries.add(1)

tries = tries + 1

tries = 1

Answers

Answer:

tries = tries + 1

Explanation:

This is a universal way to increment your variable. In some languages, the following notation also works:

tries++;

tries += 1;

Again, it depends upon the language you are using. Each language has it's own syntax.

Other Questions

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