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likoan [24]
3 years ago
13

Which one is the correct answer

Computers and Technology
1 answer:
STatiana [176]3 years ago
3 0

the right anwser is d


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The following method public String removeFromString(String old, String frag) removes all occurences of the string frag from the
Mashutka [201]

private static String removeFromString(String old, String frag)

{

int i = old.indexOf(frag);

while (i> -1) {

String rest = old.substring(i + frag.length());

System.out.println("rest = " + rest);

old = old.substring(0, i);

System.out.println("rest = " + old);

old = old + rest;

System.out.println("rest = " + old);

i = old.indexOf(frag);

System.out.println("i = "+ i);

}

return old;

}

Here the index of first occurrence is obtained outside the “while loop” and if this loop runs until index value is >-1. It extracts the rest of the characters other than “frag” from the index and all the characters for which the given set of characters are removed.

4 0
3 years ago
Write a program that will open the file random.txt and calculate and display the following: A. The number of numbers in the file
Rama09 [41]

Answer:

Here is the C++ program:

#include <iostream>  //to use input output functions

#include <fstream>  //to manipulate files

using namespace std;  //to identify objects like cin cout

int main(){  //start of main function

  ifstream file;   //creates an object of ifstream

   file.open("random.txt"); //open method to open random.txt file using object file of ifstream

       

    int numCount = 0;  //to store the number of all numbers in the file          

    double sum = 0;   //to store the sum of all numbers in the file

    double average = 0.0;   //to store the average of all numbers in the file

    int number ; //stores numbers in a file

                 

        if(!file){   //if file could not be opened

           cout<<"Error opening file!\n";    }   //displays this error message

       

       while(file>>number){   //reads each number from the file till the end of the file and stores into number variable

           numCount++; //adds 1 to the count of numCount each time a number is read from the file          

           sum += number;  }  //adds all the numbers and stores the result in sum variable

           average = sum/numCount;  //divides the computed sum of all numbers by the number of numbers in the file

     

       cout<<"The number of numbers in the file: "<<numCount<<endl;  //displays the number of numbers

       cout<<"The sum of all the numbers in the file: "<<sum<<endl;  //displays the sum of all numbers

       cout<<"The average of all the numbers in the file: "<< average<<endl;  //displays the average of all numbers

       file.close();     }  //closes the file    

   

Explanation:

Since the random.txt is not given to check the working of the above program, random.txt is created and some numbers are added to it:

35

48

21

56

74

93

88

109

150

16

while(file>>number) statement reads each number and stores it into number variable.

At first iteration:

35 is read and stored to number

numCount++;  becomes

numCount = numCount + 1

numCount = 1      

sum += number; this becomes:

sum = sum + number

sum = 0 + 35

sum = 35

At second iteration:

48 is read and stored to number

numCount++;  becomes

numCount = 1+ 1

numCount = 2    

sum += number; this becomes:

sum = sum + number

sum = 35 + 48

sum = 83

So at each iteration a number is read from file, the numCount increments to 1 at each iteration and the number is added to the sum.

At last iteration:

16 is read and stored to number

numCount++;  becomes

numCount = 9 + 1

numCount = 10    

sum += number; this becomes:

sum = sum + number

sum = 674 + 16

sum = 690

Now the loop breaks and the program moves to the statement:

       average = sum/numCount;  this becomes:

       average = 690/10;

       average = 69

So the entire output of the program is:

The number of numbers in the file: 10                                                                                                           The sum of all the numbers in the file: 690                                                                                                     The average of all the numbers in the file: 69

The screenshot of the program and its output is attached.

5 0
4 years ago
What does ""fair use"" mean regarding copyrighted works?
Nady [450]

In regards copyrighted works, fair use is simply known as legal dogma that allows the right to free expression by allowing the unlicensed use of copyright-protected works by individuals as regards to some certain situations.

Fair Use of copying of copyrighted material can only be used in a short and revelatory us, example to criticize, or caricature of a copyrighted work. It is often known to be a legal defense that protects individuals of copyrighted material from copyright infringement.

  • Fair use allows a person/people to use a copyrighted work without acknowledgement or permission of copyright owner and it can be used  to criticize, comment, news reporting, teaching, research etc. It is not seen as infringement under the law.

Conclusively, we can say that In regards copyrighted works, fair use is simply known as legal dogma that allows the right to free expression by allowing the unlicensed use of copyright-protected works by individuals as regards to some certain situations.

Learn more from:

brainly.com/question/1534807

5 0
2 years ago
If a piece of software designed to run on Windows XP can run on the latest version of Windows, we say the latest version of Wind
cluponka [151]

Answer:

Forward Compatible

Explanation:

If a piece of software designed to run on Windows XP can run on the latest version of Windows, we say the latest version of Windows is Forward Compatible.

Forward compatibility or upward compatibility is a design characteristic that allows a system to accept input intended for a later version of itself. The concept can be applied to entire systems, electrical interfaces, telecommunication signals, data communication protocols, file formats, and computer programming languages.

The objective for forward compatible technology is for old devices to recognise when data has been generated for new devices.

3 0
3 years ago
The website of an international human rights organization stores a large database of information and provides search functionali
ValentinkaMS [17]

Answer:

False.

Explanation:

The website of an international human rights organization stores a large database of information and provides search functionality to make it easier for their visitors to locate desired information. However, this approach fails to be effective since the search functionality is limited to the website rather than the whole web is a False statement.

3 0
3 years ago
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