1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
galben [10]
3 years ago
13

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

he user to enter which field the Recordings should be sorted by—(S)ong title, (A)rtist, or playing (T)ime. Perform the requested sort procedure, and display the Recording objects. Validations:

Computers and Technology
1 answer:
tangare [24]3 years ago
7 0

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.

You might be interested in
5.8.1: Modify an array parameter. Write a function SwapArrayEnds() that swaps the first and last elements of the function's arra
viktelen [127]

Answer:

see explaination

Explanation:

#include<stdio.h>

/* Your solution goes here */

//Impllementation of SwapArrayEnds method

void SwapArrayEnds(int sortArray[],int SORT_ARR_SIZE){

//Declare tempVariable as integer type

int tempVariable;

if(SORT_ARR_SIZE > 1){

tempVariable = sortArray[0];

sortArray[0] = sortArray[SORT_ARR_SIZE-1];

sortArray[SORT_ARR_SIZE-1] = tempVariable;

}

}

int main(void) {

const int SORT_ARR_SIZE = 4;

int sortArray[SORT_ARR_SIZE];

int i = 0;

sortArray[0] = 10;

sortArray[1] = 20;

sortArray[2] = 30;

sortArray[3] = 40;

SwapArrayEnds(sortArray, SORT_ARR_SIZE);

for (i = 0; i < SORT_ARR_SIZE; ++i) {

printf("%d ", sortArray[i]);

}

printf("\n");

return 0;

}

Please go to attachment for the program screenshot and output

3 0
3 years ago
Discuss the use of distributed (federated) authentication systems in use at your institution. If no such system is in use, then
aleksklad [387]

Answer:

Check the explanation

Explanation:

Distributed (federated) authentication system:

  1. • Federal identity in a information technology is a process of linking a person's identity and the attributes in multiple distinct identity management system.
  2. • It uses a single sign-on authentication; it means that one authentication credential is used to access multiple applications or the accounts.

Use of distributed (federated) authentication systems in institutions

In the institution the educational resources and other splices are offered via online, the faculty, students, alumni or other users using are accessing the resources from the various locations.

Different devices like mobile, tablet, laptop, desktop are used to access those resources.

The distributed or federated authentication identity management permits the institution to provide the access in a trustworthy, protected manner without n explosion a credentials.

• She distributed or federated authentication identity management permits the institution or individual faculty to control the access of research or other data easily and enables new level of academic collaboration

• It support the institutional policies to emend the access of valuable resources to a specific groups a use, and the incorporation of identity management across the academic government and commercial add and it make wider the possibility for interdisciplinary, inter-institutional scholarship.

BENEFITS

Students

• Make them to remember to single user id and password.

• Makes to access the educational resources across the institution and world.

• Personal information's are securely protected.

Teachers and Researchers

• flaps to create learning and research tools.

• It makes the control to access the restricted crown .

• It follows the Federal regulations and streamlines the access to the federal grant system

IT

• It eliminate the data and system redundancy

• Provides a strong and secure identity and access management.

4 0
3 years ago
The five types of personal computers are: desktops, laptops, tablets, smartphones, and
shepuryov [24]

Answer:

microcomputers

Explanation:

8 0
3 years ago
I NEED HEP QUICK
avanturin [10]

Answer:

O = (C2+C3+C4+C5)-81

Explanation:

5 0
2 years ago
Why is it good to be a computer programmer?​
liubo4ka [24]

Answer:

It's your wish become other professions like doctor, engineer are also good. But in this profession you can make apps, websites and can do hacking. Which is are cool things to do. But every profession is best at it's profession.

Explanation:

If you like my answer than please mark me brainliest

5 0
2 years ago
Other questions:
  • It is a good idea to use more than one typeface in a document when _____.
    8·2 answers
  • Consider the following classes: public class A { private int myNum; public A(int x) { myNum = x; } public int getNumber() { retu
    11·1 answer
  • Research at least two articles on the topic of managerial issues of a networked organization. Write a brief synthesis and summar
    8·1 answer
  • Anna is making a presentation on the solar system. She wants to emphasize the planet names as they appear one by one on the pres
    11·1 answer
  • What is an activity that can help you enhance the appearance of your computer’s desktop?
    13·1 answer
  • To maintain her audience's confidence in her, what should kiara not do while delivering her presentation?
    10·1 answer
  • Why is there no ide length or timing for study breaks?​
    12·1 answer
  • The building blocks of coded language are called
    11·2 answers
  • Explain what happens if you try to open a file for reading that does not exist.
    10·1 answer
  • Write any two disadvantage of First generations computers​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!