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8090 [49]
3 years ago
8

How does a computer do its work? Mention its working principle.​

Computers and Technology
1 answer:
Arturiano [62]3 years ago
5 0

Answer:

a computer run instructions (that is:code) and executes according to the set of instructions given

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Pls someone help me with these four questions
ipn [44]

Answer:

16. Grace Hopper. 1959.

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"in program arrays12.java a swap method is called. does the swap method exchange parameter values x and y?"
horrorfan [7]
<h2>Yes the swap method exchange parameter values if passed by reference or the value gets changed inside the function.</h2>

Explanation:

Since the program is not given, I will try to guide you about the mode of parameters.

The meaning of swap is interchanging the values. It can be done by using temporary variable or without using it (if the values are integers).

While passing the parameters, there are two ways, call by value/pass by value and call by reference/ pass by reference.

If call by value, then the value gets swapped only inside the function and will not reflected in the calling portion. Call by reference is other way round.

6 0
3 years ago
What is the name of the FOLDER in which the file named "script" is contained?
yulyashka [42]

Answer:

The default location for local logon scripts is

  • the Systemroot\System32\Repl\Imports\Scripts folder

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3 years ago
What is the best definition for a relationship?
velikii [3]

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3 years ago
A file named 'input.txt' contains a list of words. Write a program that reads the content of the file one word at a time. Check
Margarita [4]

Answer:

// here is code in java.

import java.io.*;

import java.util.Scanner;

class Main{  

    // function to check a word is palindrome or not

 private static boolean is_Palind(String str1)

 {

     // if length of String is 0 or 1

   if(str1.length() == 0 || str1.length() == 1)

   {

     return true;

   }

   else

   {

       // recursively check the word is palindrome or not

     if(str1.charAt(0) == str1.charAt(str1.length()-1))

     {

       return is_Palind(str1.substring(1,str1.length()-1));

     }

     

     else

     {

       return false;

     }

   }

 }

// driver function

 public static void main(String[] args)

 {// variable to store word

   String word;

   // BufferedWriter object

   BufferedWriter buff_w = null;

   // FileWriter object

   FileWriter file_w = null;

   // Scanner object

   Scanner sc = null;

   try

   {

       // read the input file name

     sc = new Scanner(new File("input.txt"));

     // output file

     file_w = new FileWriter("output.txt");

     // create a buffer in output file

     buff_w = new BufferedWriter(file_w);

     

     // read each word of input file

     while(sc.hasNext())

     {

       word = sc.next();

     // check word is palindrome or not

       if(is_Palind(word))

       {

           // if word is palindrome then write it in the output file

         buff_w.write(word);

         buff_w.write("\n");

       }

     }

     // close the buffer

     buff_w.close();

     // close the input file

     sc.close();

   }

   // if there is any file missing

   catch (FileNotFoundException e) {

     System.out.println("not able to read file:");

   }

   // catch other Exception

   catch (IOException e) {

     e.printStackTrace();

   }

 }

}

Explanation:

Create a scanner class object to read the word from "input.txt" file.Read a word  from input file and check if it is palindrome or not with the help of is_Palind() function.it will recursively check whether string is palindrome or not. If it is  palindrome then it will written in the output.txt file with the help of BufferedWriter  object. This will continue for all the word of input file.

Input.txt

hello world madam

level welcome

rotor redder

output.txt

madam

level

rotor

redder

3 0
3 years ago
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