Keep getting error!!

[WingKalimdor]

Hi everyone, I having a minor difficulty in sorting the menu.

Create a class for service offered by the hair styling salon. Data fields include a String to hold the service description (for example, “Cut”, “Shampoo”, or “Manicure”), a double to hold the price and an integer to hold the average minutes it takes to perform the service. The class should include the following:-

1. Constructor
2. Mutator
3. Accesor
4. toString method

Write a program that contains an array to hold six services as below:-



Your program should include a menu that view the report based on service, price or time depend on the user’s input. Sort your report in ascending order.

Example:

Here is my coding .... please help me... thanks..

import java.io.*;

class TestService{
	public static void main(String args []){
		
		int selection;
	
		
		Service array[]=new Service[6];
		
		
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		
		System.out.println("View The Report By \n");
		System.out.println("1. Service");
		System.out.println("2. Price");
		System.out.println("3. Time");
		System.out.println("4. Exit");
		
		try{
		
		do{
			
		
		System.out.print("Enter selection :");
		selection =Integer.parseInt(br.readLine());
		
		
		if(selection ==1){
		
				
			array[0]=new Service("Cut",8.00,15);
			array[1]=new Service("Shampoo",4.00,10);
			array[2]=new Service("Manicure",18.00,30);
			array[3]=new Service("Style",48.00,55);
			array[4]=new Service("Permanent",18.00,35);
			array[5]=new Service("Trim",6.00,5);
			
		}else if(selection ==2){
			array[0]=new Service("Shampoo",4.00,10);
			array[1]=new Service("Trim",6.00,5);
			array[2]=new Service("Cut",8.00,15);
			array[3]=new Service("Manicure",18.00,30);
			array[4]=new Service("Permanent",18.00,35);
			array[5]=new Service("Style",48.00,55);
		
			
		}else if(selection ==3){
			array[0]=new Service("Trim",6.00,5);
			array[1]=new Service("Shampoo",4.00,10);
			array[2]=new Service("Cut",8.00,15);
			array[3]=new Service("Manicure",18.00,30);
			array[4]=new Service("Permanent",18.00,35);
			array[5]=new Service("Style",48.00,55);}
		
		}while(!=4);
		
		System.out.println();
		System.out.println("Service"+"\t\t"+"Price<$>" +"\t" + "Time<Minutes>");
		System.out.println("=======" + "\t\t" +"========" +"\t" + "=============");

		
		for(int a=0;a<6;a++)
		System.out.println(array[a].toString());
		}
		

		catch(NumberFormatException ex){		
		System.out.println("You can only enter number");
		}
		catch(IOException ex){
			System.out.println("Input error");
		}
	}
}

[John]

From the looks of it, your data is stored in an array. You can use the java.util.Arrays.sort() method to sort the data of a primitive type in ascending order.

[WingKalimdor]

java.util.Arrays.sort() only can support 1 character, I having some difficulty to modify it. Here is a new program but it won't work after I change it back to array form. Please help me ....

class Report{
	
	String service;
	double price;
	int time;
	
	public Report (){
	}
	
	public Report (String s,double d,int i){
		service=s;
		price=d;
		time=i;
	}
	
	public void setService(String s){
		service=s;
	}
	public String getService(){
		return service;
	}
	
	public void setPrice(double d){
		price=d;
	}
	public double getPrice(){
		return price;
	}
	
	public void setTime(int i){
		time=i;
	}
	public int getTime(){
		return time;
	}
	
	public String toString(){
		return getService() + "\t   " + getPrice() + "\t\t\t" + getTime();
	}

	
}

import java.io.*;

class TestReport{
	public static void main (String args[]) throws IOException{
		
		int x;
		BufferedReader br = new BufferedReader (new InputStreamReader(System.in));
		
		Report salon1 = new Report("Cut       ", 8.00, 15);
		Report salon2 = new Report("Shampo    ", 4.00, 10);
		Report salon3 = new Report("Manicure  ", 18.00, 30);
		Report salon4 = new Report("Style     ", 48.00, 55);
		Report salon5 = new Report("Permanent ", 18.00, 35);
		Report salon6 = new Report("Trim      ", 6.00, 5);
	
	do{System.out.println("View The Report By : \n");
	System.out.println("1. Service\n2. Price\n3. Time\n4. Exit\n");
	System.out.print("Enter Selection : ");
	x=Integer.parseInt(br.readLine());
	
	System.out.println("\n\n\n");
	
	if(x==4){
	System.out.println("Thanks for using this program!\n\n");
	System.exit(-1);
	}
			
	System.out.println("Service   \tPrice($)\tTime(minutes)");
	System.out.println("==========\t========\t=============\n");
	
	if(x==1){
	System.out.println(salon1);
	System.out.println(salon3);
	System.out.println(salon5);
	System.out.println(salon2);
	System.out.println(salon4);
	System.out.println(salon6);
	}else if(x==2){
		System.out.println(salon2);
		System.out.println(salon6);
		System.out.println(salon1);
		System.out.println(salon3);
		System.out.println(salon5);
		System.out.println(salon4);
	}else if(x==3){
		System.out.println(salon6);
		System.out.println(salon2);
		System.out.println(salon1);
		System.out.println(salon3);
		System.out.println(salon5);
		System.out.println(salon4);
	}
	else if(x==4){
		System.out.println("Thanks for using this program!\n\n");
		System.exit(-1);
	}else{
		System.out.println("\t<Data is not available because of wrong entry>\n\n");
	}
	
	System.out.println("\n\n\n\n");
	}while(x!=4);
	}
}

[John]

First, make an array of Reports, it is more difficult to sort random data than an array of data.

And what do you mean sort() only supports one character?

[WingKalimdor]

Here is the result when I try to align, please help me see whether got any place to be improve or not?

import java.io.*;
class runsalon
{

	public static void main(String args[])
	{
		salon type[]= new salon[6];
		salon choose=new salon();
		
		type[0]= new salon(leftAlign.left("Cut",10),8.00,15);
		type[1]= new salon(leftAlign.left("Shampoo",10),4.00,10);
		type[2]= new salon(leftAlign.left("Manicure",10),18.00,30);
		type[3]= new salon(leftAlign.left("Style",10),48.00,55);
		type[4]= new salon(leftAlign.left("Permanent",10),18.00,35);
		type[5]= new salon(leftAlign.left("Trim",10),6.00,5);
		
		do
		{
			try
			{
	
				System.out.println("View The Report By: ");
				System.out.println("1. Service");
				System.out.println("2. Price");
				System.out.println("3. Time");
				System.out.println("4. Exit");
	
				BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
				
				System.out.println("Enter selection: ");
				choose.setSelect(Integer.parseInt(br.readLine()));
				System.out.println("\n");
				
				if(choose.getSelect()==1)
				{
					serviceType(type);
				}
				else if(choose.getSelect()==2)
				{
					priceType(type);
				}
				else if(choose.getSelect()==3)
				{
					minuteType(type);
				}
			}
			catch(selectException ex)
			{
				System.out.println("Error" +ex.getMessage());
			}
			catch(IOException io)
			{
				System.out.println("Error: Invalid Selection");
			}
				System.out.println("\n");
		}while(choose.getSelect()!=4);
			
		
		
	}
	public static void serviceType(salon type[])
	{
		int charCheck;
		int charCompare;
		int serviceIndex[]=new int[6];
		int serviceChar[]=new int[6];
		int temp=0;
		
		for(int w=0;w<type.length;w++)
		{
			serviceChar[w]=type[w].getService().charAt(0);
			serviceIndex[w]=w;
		}
		for(int x=0;x<type.length;x++)
		{
			for(int y=x+1;y<type.length;y++)
			{
				if(serviceChar[serviceIndex[x]]>serviceChar[serviceIndex[y]])
				{
					temp=serviceIndex[x];
					serviceIndex[x]=serviceIndex[y];
					serviceIndex[y]=temp;
				}
				else if(serviceChar[serviceIndex[x]]==serviceChar[serviceIndex[y]])
				{
					charCheck=type[serviceIndex[x]].getService().charAt(1);
					charCompare=type[serviceIndex[y]].getService().charAt(1);
					if(charCheck>charCompare)
					{
						temp=serviceIndex[x];
						serviceIndex[x]=serviceIndex[y];
						serviceIndex[y]=temp;	
					}
				}
			}			
		}
		
		display(serviceIndex,type);
	}
	public static void priceType(salon type[])
	{
		int lowPriceIndex[]=new int[6];
		int temp=0;
		int charCheck;
		int charCompare;
		
		for(int w=0;w<type.length;w++)
		{
			lowPriceIndex[w]=w;
		}
		for(int x=0;x<lowPriceIndex.length;x++)
		{
			for(int y=x+1;y<type.length;y++)
			{
				if(type[lowPriceIndex[x]].getPrice()>type[lowPriceIndex[y]].getPrice())
				{
					temp=lowPriceIndex[x];
					lowPriceIndex[x]=lowPriceIndex[y];
					lowPriceIndex[y]=temp;
				}
				else if(type[lowPriceIndex[x]].getPrice()==type[lowPriceIndex[y]].getPrice())
				{
					charCheck=type[lowPriceIndex[x]].getService().charAt(0);
					charCompare=type[lowPriceIndex[y]].getService().charAt(0);
					if(charCheck>charCompare)
					{
						temp=lowPriceIndex[x];
						lowPriceIndex[x]=lowPriceIndex[y];
						lowPriceIndex[y]=temp;	
					}
				}
			}
			
		}	
			display(lowPriceIndex,type);	
	}
	public static void minuteType(salon type[])
	{
		int minuteIndex[]=new int[6];
		int temp=0;
		
		for(int w=0;w<type.length;w++)
		{
			minuteIndex[w]=w;
		}
		for(int x=0;x<minuteIndex.length;x++)
		{
			for(int y=x+1;y<type.length;y++)
			{
				if(type[minuteIndex[x]].getMinute()>type[minuteIndex[y]].getMinute())
				{
					temp=minuteIndex[x];
					minuteIndex[x]=minuteIndex[y];
					minuteIndex[y]=temp;
				}
			}		
		}	
			display(minuteIndex,type);
	}
	public static void display(int displayIndex[],salon type[])
	{
		System.out.println("Service\t       Price($)\t    Time(minutes)");
		System.out.println("=======\t       ========\t    =============");
		
		for(int z=0;z<displayIndex.length;z++)
		{
			System.out.println(type[displayIndex[z]].toString());
		}
		
	}
}

class salon
{
	private String service;
	private double price;
	private int minute;
	private int select;
	
	public salon()
	{
	
	}
	public salon(String s,double p,int m)
	{
		setService(s);
		setPrice(p);
		setMinute(m);
	}
	
	public void setService(String s)
	{
		service=s;
	}
	public String getService()
	{
		return service;
	}
	public void setPrice(double p)
	{
		price=p;
	}
	public double getPrice()
	{
		return price;
	}
	public void setMinute(int m)
	{
		minute=m;
	}
	public int getMinute()
	{
		return minute;
	}
	public String toString()
	{
		return getService() +"\t" +getPrice() +"\t\t" +getMinute();
	}
	public void setSelect(int c)throws selectException
	{
		if(c>4||c<1)
		{
			throw (new selectException("Invalid Selection"));
		}
		select=c;
	}
	public int getSelect()
	{
		return select;
	}	
}

class selectException extends Exception
{
	public selectException(String x)
	{
		super(x);
		
	}
}

class leftAlign
{
	public static String left(String s, int size)
	{
		String temp=s;
		for(int x=0;x<size-s.length();x++)
		{
			temp = temp +" ";
		}
		return temp;
	}
	
}

[WingKalimdor]

I guess the code is getting more complicated than before, I prefer simple and sexy.