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patriot [66]
3 years ago
5

A major advantage of a method is that it is easily reusable. What does it mean to reuse a method and what are the advantages of

doing so?
Computers and Technology
1 answer:
JulijaS [17]3 years ago
8 0

Answer: To reuse a method means to use a code which has been done or prepared already and just we need to change some of the functionalities.

This helps a great deal of saving time as well as helps in making the code manageable.

Explanation:

This has been practiced since long that methods can be reused. for example we need to build a calculator in c. then we can simply reuse the same method  just we need to change the sign of the operator. So in this process we can speed up our operations and work and also can make the code easy to understand and manage it when we have have to deal with large lines of code.

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Write an application that instantiates five Recording objects and prompts the user for values for the data fields. Then prompt t
tangare [24]

Answer:

Here is the JAVA application

Recording.java:

class Recording {  //class name

String title;  //String type variable to store the title of the song

String artist;  //String type variable to store the artist name of the song

int playingTime;  //int type variable to store the playing time of the song in seconds  

public String getTitle() {  //accessor method to get the title of the song

   return title; }   //returns the current title of song

public void setTitle(String title) {  //mutator method to set the title of song

   this.title = title;  }   // sets the title of song

public String getArtist() {  //accessor method to get the artist name of the song

  return artist; }   //returns the current artist name of song

public void setArtist(String artist) {  //mutator method to set the artist name of song

  this.artist = artist; }   //sets the artist name

public int getPlayingTime() {  //accessor method to get the playing time of the song

   return playingTime; } /  /returns the playing time of song

public void setPlayingTime(int pt) {  //mutator method to set the playing time of song

   this.playingTime = pt; }   //sets the playing time of song

public Recording(String title, String artist, int playingTime) {  //parmeterized constructor of Recording class that takes title, artist and playingTime as parameters

this.title = title;  

this.artist = artist;

this.playingTime = playingTime;  }  }

Explanation:

Here is the Main class:  

import java.util.Scanner;   //to accept input from user

public class Main {  

public static void main(String[] args) {  // start of main function

 Recording[] song = new Recording[5];  //creates object of Recording class named song to instantiate five Recording objects

 Scanner input = new Scanner(System.in);  //creates Scanner class object named input

 int i = 0;  // declare i and initialize it to -

 for (i = 0; i < song.length; i++) {  //iterates through the list of song

  int j = i + 1;  

  System.out.print("Enter the title of song " + j + ": ");  //prompts user to enter the title of song

 String title = input.nextLine();   //reads the title string from user

 System.out.print("Enter the artist of song " + j + ": ");  //prompts user to enter the artist of song

 String artist = input.nextLine();   //reads the artist string from user

System.out.print("Enter the playing time of song " + j + " in seconds: ");   //prompts user to enter the playing time of song

 String playtime = input.nextLine();  //reads the playing time string value from user

 int playingTime = Integer.parseInt(playtime);   // converts String value of playtime to integer

 song[i] = new Recording(title, artist, playingTime); }   //calls constructor of Recording class by passing title, artist and playingTime to it  

 int sort;  // for choosing which field to sort

do {  //continues to ask user to enter which field the Recordings should be sorted by

System.out.println("How should these songs be sorted? 1 for title 2 for artist 3 for playing time");  

sort = input.nextInt();  //reads user choice to sort

       if (sort > 0 && sort < 4) {  //to check if user enters a valid choice

 int a, b;  

 int max = song.length - 1;  

for (a = 0; a < max; a++) {  //iterates through the length of the song list setting an index variable a

      for (b = 0; b < max; b++) {    //iterates through the length of the song list setting an index variable b

  int c = b + 1;

     if (sort == 1) {  //if the user selects title field

       if (song[b].getTitle().compareTo(song[c].getTitle()) > 0) {  // compares title of one song with the song that comes after it

   Recording temp = song[b];  //sorts the titles using bubble sort by ordering each title to the immediate next and swapping them if they are not sorted already

   song[b] = song[c];

   song[c] = temp; } }  

   else if (sort == 2) {    //if the user selects artist field

  if (song[b].getArtist().compareTo(song[c].getArtist()) > 0) {  // compares artist of one song with the song artist  that comes after it

//sorts the artists using bubble sort by ordering each title to the immediate next and swapping them if they are not sorted already

     Recording temp = song[b];

     song[b] = song[c];

     song[c] = temp;  }  }  

   else if (sort == 3) {   //if the user selects playing time field

  if (song[b].getPlayingTime() > song[c].getPlayingTime()) {

/* compares artist of one song with the song artist  that comes after it sorts the artists using bubble sort by ordering each title to the immediate next and swapping them if they are not sorted already */

       Recording temp = song[b];

        song[b] = song[c];

         song[c] = temp;  } } } }  }  

             else {  //if user enters any invalid choice

 System.out.println("Invalid choice! Enter right choice"); }        

       } while (sort < 1 || sort > 3);  //keeps asking user to enter which field the recording to sort by until the value of sort in range of 1 to 3

for (i = 0; i < song.length; i++) {  //displays the sorted song list according to selected field

System.out.println("Song: Title: " + song[i].getTitle() + ". Artist: " + song[i].getArtist() + ". Playing time: " + song[i].getPlayingTime() + " seconds.");  }

input.close();  }  }

The output of the program is attached.

7 0
3 years ago
Write a question that the database will understand. Which records do not contain "sold"?
astraxan [27]

Answer:

b

Explanation:

b

4 0
2 years ago
When you are typing data that is in a series, such as days of the week or months of the year, you can use this tool to complete
sertanlavr [38]

Answer:

Days of the week including weekends Fill Weekdays – you can autofill working days of the week excluding weekends. This is very cool. I can autofill dates excluding the weekends. Fill Months – and you can use the full word or a standard abbreviation for the month, and Excel will autofill the sequence.

Explanation:

3 0
3 years ago
In mathematics, the notation n! represents the factorial of the nonnegative integer n. The factorial of n is the product of all
hram777 [196]

Answer:

The program to this question can be given as:

Program:

factorial=1 #declare a variable.  

number=int(input("Enter a positive integer:")) #input a number.  

while (number>0): #loop  

   factorial= factorial*number # holding value in factorial variable  

   number=number-1  

print('=',factorial) #print value.

Output:

Enter a positive integer:6  

= 720  

Explanation:

The description of the above python program can be given as:

  • In the above program firstly we define a variable that is "factorial". In this variable, we assign a value that is 1 and it is used to calculate the factorial value.  
  • We define a variable "number". The number variable is used to take input from the user.  
  • Then we define a loop in the loop we calculate the factorial and hold the value in the factorial value in the last we print the value.  

4 0
3 years ago
thick is incorrect does anybody know the correct answer? please don’t send any files i can’t open them
77julia77 [94]

Answer:

i think its new

Explanation:

if this is incorrect i apologize

7 0
3 years ago
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