Answer:
phones = {'John': '1234567', 'Julie' : '7777777'}
Explanation:
In the code given in the question phones dictionary contains contains two keys John and Julie and have the values '5555555' and '7777777' respectively. Now in the code the key John in the dictionary phones is assigned the value '1234567' .So the value corresponding to the key John becomes '1234567'.
Answer:
B. Sometimes, seeing a picture of the process is more helpful than reading about it.
Explanation:
Video tutorials are a form of communication in which the instructions are given through video instructions. The users drive more information from video tutorials than written or audio. The visual and the auditory aids together helps in creating a better impact on the users. The video tutorial is more user friendly and can easily be controlled by the user. This helps in better understanding and analyzing the information.
Answer:
This article shows how to use regex to remove spaces in between a String.
A string with spaces in between.
String text = "Hello World Java.";
We want to remove the spaces and display it as below:
Hello World Java.
1. Java regex remove spaces
In Java, we can use regex \\s+ to match whitespace characters, and replaceAll("\\s+", " ") to replace them with a single space.
Regex explanation.
`\\s` # Matches whitespace characters.
+ # One or more
StringRemoveSpaces.java
package com.mkyong.regex.string;
public class StringRemoveSpaces {
public static void main(String[] args) {
String text = "Hello World Java.";
String result = text.replaceAll("\\s+", " ");
System.out.println(result);
}
}
Output
Terminal
Hello World Java.
Answer:
The benefit of barcodes on items for the manager and the customers are as follow-
Explanation:
Benefits of using bar codes on all items to the manger are as follow -
- The process of customer dealing increases by quickly scanning the item, rather than manually noting down the details.
- The track record of all the items can be maintained properly.
Benefits of using bar codes on all items to the customers are as follow -
- The time period to purchase any item increases, hence the customer can shop for many items in short span of time.
- The chances of any mistake gets reduced, as everything is done digitally.
The program is an illustration of loops.
Loops are used to perform repetitive and iterative operations.
The program in C++ where comments are used to explain each line is as follows:
#include <iostream>
using namespace std;
int main(){
//This declares and initializes all variables
string star = "*", blank = " ", temp;
//The following iteration is repeated 8 times
for (int i = 1; i <= 8; i++) {
//The following iteration is repeated 8 times
for (int j = 1; j <= 8; j++) {
//This prints stars
if (j % 2 != 0) {
cout << star;
}
//This prints blanks
else if (j % 2 == 0) {
cout << blank;
}
}
//This swaps the stars and the blanks
temp = star;
star = blank;
blank = temp;
//This prints a new line
cout << endl;
}
}
Read more about similar programs at:
brainly.com/question/16240864
