Arrays

import java.util.Scanner;
import java.io.File;
import java.io.*;

class Music5
{

String[] art = new String[25];
String[] gen = new String[25];
int count=0;

public int displayMenu()
{
int menuChoice;
Scanner scan = new Scanner (System.in);
System.out.println("Enter a selection");
System.out.println("1. Read in artistes and genres from a file ");
System.out.println("2. Display a list of artistes and genres  ");
System.out.println("3. Sort by artistes in alphabetcal order");
System.out.println("4. Sort by genres in alphabetcal order ");
System.out.println("5. Find all of a specified genre and display ");
System.out.println("6. Add new data");
System.out.println("7. Quit");
menuChoice = scan.nextInt();
return menuChoice;
}

public void readIn() throws Exception
{
System.out.println("Artists and genres read in from file()");

{
File myFile = new File("Artistes.txt");
Scanner scan = new Scanner(myFile);
while (scan.hasNext())
{
gen[count]= scan.next();
art[count]= scan.next();
count++;
}
scan.close();
}
}

public void DisplayList() throws Exception
{
File myFile = new File("Artistes.txt");
Scanner scan = new Scanner(myFile);
while(scan.hasNext())
{
gen[count]= scan.next();
art[count]= scan.next();

System.out.println(" Artistes: "+art[count] + "		Genre: "+gen [count] );
count++;
}
{
System.out.println("Now in method displayList()");
}
scan.close();
}


public void sortByArtistes()throws Exception
{
String gen1;
String art2;
int min;
for(int i = 0; i < count -1; i++)
{
min=i;
for(int j = i +1;j  < count; j++)
{
if(art[j].compareTo(art[min])<0)
{
min=j;
}
}
gen1=gen[i];
gen[i]=gen[min];
gen[min]=gen1;
art2=art[i];
art[i]=art[min];
art[min]=art2;
}
for(int i=0;i<count; i++)

{
System.out.println(" Artistes: "+art[i] + "		Genre: "+gen [i]);
}
}


public void sortByGenre()
{
String art1;
String gen2;
int min;
for(int i = 0; i < count -1; i++)
{
min=i;
for(int j = i +1;j  < count; j++)
{
if(gen[j].compareTo(gen[min])<0)
{
min=j;
}
}
art1=art[i];
art[i]=art[min];
art[min]=art1;
gen2=gen[i];
gen[i]=gen[min];
gen[min]=gen2;
}
for(int i=0;i<count; i++)

{
System.out.println(" Genre: "+gen[i] + "	Artistes: "+art [i]);
}
}


public void findGenre()throws Exception
{
System.out.println("Search By Genre");
Scanner scan= new Scanner (System.in);
System.out.println("Enter Genre");
gen[count]=scan.next();
count++;


}

{

}

public void addNewData()throws Exception
{
System.out.println("Add New Artist and Genre");
Scanner scan= new Scanner (System.in);
System.out.println("Enter Artist Name");
art[count]=scan.next();
System.out.println("Enter Genre");
gen[count]=scan.next();
count++;
}


public void systemQuit()
{

}

public static void main(String[] args)throws Exception
{
int menuChoice = 0;
Scanner scan = new Scanner(System.in);
Music5 Artistes = new Music5();
while (menuChoice != 7)
{
System.out.println();
System.out.println();
menuChoice = Artistes.displayMenu();
switch (menuChoice)
{

case 1:
Artistes.readIn();

break;

case 2:
Artistes.DisplayList();

break;

case 3:
Artistes.sortByArtistes();

break;

case 4:
Artistes.sortByGenre();

break;

case 5:
Artistes.findGenre ();

break;

case 6:
Artistes.addNewData ();

break;

case 7:
Artistes.systemQuit();

break;

default:
System.out.println("Invalid choice! Numbers between 1-7 only");
}
}
}
}