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Old Feb 8th, 2005, 10:35 PM   #1
monka
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help out beginner with some errors (solved)
Want to help me out? I am doing this program for a class and can't seem to fix these errors. I am sooo tired.... I am using Jcreator le by the way.

Thanks by the way!


pracloop.java
(Toggle Plain Text) 
import java.awt.*;
import java.io.*;
import java.text.DecimalFormat;


class pracloop//inheritance
{
	
	
	
	public static void main(String args[])
	{
		double numofitems;
		double priceitem[] = new double [2];
		double markup[] = new double [2];
		double lastcost[] = new double [2];
		String nameitem[] = new String [2];
		int choice;
		menu(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
		return;
	}
	
	
	public static void menu(int choice, double numofitems, double priceitem[], double nameitem[], double markup[], double lastcost[])
	{

		
			subclass sub = new subclass(); //constructor sets up an instance of
			
			String Choice;
			System.out.println("           ");			
			System.out.println("1. input data");
			System.out.println("2. input markup");
			System.out.println("3. calculate");
			System.out.println("4. output ");
			System.out.println("5. end this program");
									
			Choice = sub.getConsoleString();
			choice = Integer.parseInt(Choice);
			
			switch(choice)
			{
				case 1:
				inputdata(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
				break;
				
				case 2:
				markup(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
				break;
				
				case 3:
				calculate(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
				break;
				
				case 4:
				output(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
				break;
				
				case 5:
				return;
				
			}		
			return;
		}
		
		public static double inputdata(int choice, double numofitems, double priceitem[], double nameitem[], double markup[], double lastcost[])
	{
		
		subclass sub = new subclass();
				
		String InputString[];

		String InputString = new String [2];
		int operation = 1;
		
		
		
		System.out.print("Please enter the number of items: ");
		InputString[0] = sub.getConsoleString();
		numofitems = Double.parseDouble(InputString[0]);
		InputString[0] = "";
		int counter;
		for(counter = numofitems; counter>0; counter--)
		{
		System.out.println("Please enter the wholesale cost of item#" + counter + ": ");
		
		InputString[counter] = sub.getConsoleString();
		priceitem[counter] = Double.parseDouble(InputString[counter]);
		InputString[counter] = "";
		System.out.println("           ");
		
		System.out.println("Please enter the name of item#" + counter + ": ");
		InputString[counter] = sub.getConsoleString();
		nameitem[counter] = InputString[counter];
		System.out.println("           ");
		InputString[counter] = "";
		
		}

		menu(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
		return(0);
	}
	
	public static double markup(int choice, double numofitems, double priceitem[], double nameitem[], double markup[], double lastcost[])
	{
		
		subclass sub = new subclass();
				
		String InputString[];

		String InputString = new String [2];
		int operation = 2;
		
		int counter;
		
		for(counter = numofitems; counter>0; counter--)
		{
		System.out.println("Please enter the markup of item#" + counter + ": ");
		
		InputString[counter] = sub.getConsoleString();
		markup[counter] = Double.parseDouble(InputString[counter]);
		InputString[counter] = "";
		System.out.println("           ");
		
		}

		menu(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
		return(0);
	}
	
	
	public static double calculate(int choice, double numofitems, double priceitem[], double nameitem[], double markup[], double lastcost[])
	{
		
		subclass sub = new subclass();
				
		String InputString[];

		String InputString = new String [2];
		int operation = 3;
		
		int counter;
		
		
		for(counter = numofitems; counter>0; counter--)
		{	
		lastcost[counter] = priceitem[counter] + markup[counter];
		
		System.out.println("           ");
		System.out.println("Please enter the markup of item#" + counter + ": ");
		}

		menu(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
		return(0);
	}
	
	public static void output(int choice, double numofitems, double priceitem[], double nameitem[], double markup[], double lastcost[])
	{
		subclass sub = new subclass();
	
	
		sub.output(choice, numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
		
		return;	

	}	
	}

subclass.java
(Toggle Plain Text) 
import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;

public class subclass extends pracloop
{


public static double output(int choice, double numofitems, double priceitem[], double nameitem[], double markup[], double lastcost[])
{
	pracloop prac = new pracloop();
	subclass sub = new subclass();
	
	int counter;
		
	//DecimalFormat twoDigits = new DecimalFormat("$#,000.00);
	//twoDigits.format(lastcost[counter])
		for(counter = numofitems; counter>0; counter--)
		{	
		
		System.out.println("The price of " + nameitem[counter] + " is: " + lastcost[counter] + ".");
		System.out.println("        ");
		}
		
		prac.menu(numofitems, priceitem[2], nameitem[2], markup[2], lastcost[2]);
		
		return(0);
}



public static String getConsoleString()
	{
	
	int noMoreInput = -1;
	char enterKeyHit = '\n';
	int InputChar = 0;
	
	StringBuffer InputBuffer = new StringBuffer(30);

	try
	{
		InputChar = System.in.read();
		
		while (InputChar != noMoreInput)
		{
			if ((char) InputChar != enterKeyHit)
			{
				InputBuffer.append((char) InputChar);
			}
			else
			{InputBuffer.setLength(InputBuffer.length() -1);
			 break;
			}
			InputChar = System.in.read();
		}
	}
	catch(IOException IOX)
	{
		System.err.println(IOX);
	}
	return InputBuffer.toString();	
	}//end of GetConsoleString() 
	
}

Thanks!!!!!!!!!!!!!!!!!!!!!!!!!
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Old Feb 8th, 2005, 10:48 PM   #2
Mjordan2nd
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Can you post the errors?
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Old Feb 9th, 2005, 1:50 AM   #3
EdSalamander
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Hate to break it to you, but this thing is full of errors.
  • In your parameters for menu(), nameItem is a double, but you're passing a String from nameItem[]. That, and nearly all your parameters are asking for arrays but you're only passing in single array elements. I.E. turn all those array parameters into single parameter elements.
  • InputString can't be both a String and a String array at the same time.
  • The counter in the for loop in inputData() was declared as an int, but then you try to set it equal to a double. You can't do that without casting the double to an int first.
  • Output() in subclass is set to return a double but you have it returning an int. Hell, for that matter, why is it returning anything at all? The value never changes. Why not just take out the return statement and set the return type to void?

And those are just the compile-time errors. Forgive me if this is too presumptous, but you aren't letting JCreator make your code for you, are you? That would kinda defeat the purpose...
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Old Feb 9th, 2005, 5:43 AM   #4
Berto
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stop using jCreator would be my advice and hand code it all using notepad or soemthing similar that doesn't pre-wizard in code for you :/. Personally i prefer to use txt editors until i no the code then i go to the fancy IDE's

Also when posting please post the errors as well, this helps us to make a faster diagnosis of your code.
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Old Feb 9th, 2005, 6:40 AM   #5
Mjordan2nd
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Quote:
Originally Posted by Berto
pre-wizard in code for you :/.
JCreator prewizards in code for you? Eh, I think JCreator is fine. That's what I've been using since I started Java. I don't like plain old notepad. If I'm working on something that's non-trivial, I like some syntax highlighting, and something that'll automatically tab for me at least.

Notepad2, on the other hand, isn't bad, plus it's supposedly just as light as notepad.
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"Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower
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Old Feb 9th, 2005, 7:41 AM   #6
Berto
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piffle piffle piffle, that is all i have to say. But i used texturizer for my PHP codeie things /
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Old Mar 3rd, 2005, 8:41 PM   #7
monka
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Sorry guys that was a bad way to introduce myself. I hope this redeems myself. I battled through the program, debugging it and I fixed it...

If anyone wanted to see it, here is the end result. Thanks for all the help by the way guys.

pracloop.java:
(Toggle Plain Text) 
import java.awt.*;
import java.io.*;
import java.text.DecimalFormat;


class pracloop//inheritance
{
	
	
	
	public static void main(String args[])
	{
		int numofitems = 0;
		double priceitem[] = new double [2];
		double markup[] = new double [2];
		double lastcost[] = new double [2];
		String nameitem[] = new String [2];
		int choice = 0;
		menu(choice, numofitems, priceitem, nameitem, markup, lastcost);
		return;
	}
	
	
	public static void menu(int choice, int numofitems, double priceitem[], String nameitem[], double markup[], double lastcost[])
	{

		
			subclass sub = new subclass(); //constructor sets up an instance of
			
			String Choice;
			System.out.println("           ");			
			System.out.println("1. input data");
			System.out.println("2. input markup");
			System.out.println("3. calculate");
			System.out.println("4. output ");
			System.out.println("5. end this program");
									
			Choice = sub.GetConsoleString();
			choice = Integer.parseInt(Choice);
			
			switch(choice)
			{
				case 1:
				inputdata(choice, numofitems, priceitem, nameitem, markup, lastcost);
				break;
				
				case 2:
				markup(choice, numofitems, priceitem, nameitem, markup, lastcost);
				break;
				
				case 3:
				calculate(choice, numofitems, priceitem, nameitem, markup, lastcost);
				break;
				
				case 4:
				output(choice, numofitems, priceitem, nameitem, markup, lastcost);
				break;
				
				case 5:
				return;
				
			}		
			return;
		}
		
		public static double inputdata(int choice, int numofitems, double priceitem[], String nameitem[], double markup[], double lastcost[])
	{
		
		subclass sub = new subclass();
				
		

		String InputString = "";
		
		
		
		
		System.out.print("Please enter the number of items: ");
		InputString = sub.GetConsoleString();
		numofitems = Integer.parseInt(InputString);
		InputString = "";
		int counter;
		for(counter = numofitems; counter>0; counter--)
		{
		
		System.out.println("Please enter the name of item #" + counter + ": ");
		InputString = sub.GetConsoleString();
		nameitem[counter - 1] = InputString;
		System.out.println("           ");
		InputString = "";
		
		System.out.println("Please enter the wholesale cost of " + nameitem[counter - 1] + ": ");
		priceitem[counter - 1] = Double.parseDouble(sub.GetConsoleString());
		System.out.println("           ");
		
		
		}

		menu(choice, numofitems, priceitem, nameitem, markup, lastcost);
		return(0);
	}
	
	public static double markup(int choice, int numofitems, double priceitem[], String nameitem[], double markup[], double lastcost[])
	{
		
		subclass sub = new subclass();
				
		

		String InputString[] = new String [2];
		int operation = 2;
		
		int counter;
		
		for(counter = numofitems; counter>0; counter--)
		{
		System.out.println("Please enter the markup of " + nameitem[counter - 1] + ": ");
		
		InputString[counter - 1] = sub.GetConsoleString();
		markup[counter - 1] = Double.parseDouble(InputString[counter - 1]);
		InputString[counter - 1] = "";
		System.out.println("           ");
		
		}

		menu(choice, numofitems, priceitem, nameitem, markup, lastcost);
		return(0);
	}
	
	
	public static double calculate(int choice, int numofitems, double priceitem[], String nameitem[], double markup[], double lastcost[])
	{
		
		subclass sub = new subclass();
				
		

		String InputString[] = new String [2];
		int operation = 3;
		
		int counter;
		
		
		for(counter = numofitems; counter>0; counter--)
		{	
		lastcost[counter - 1] = priceitem[counter - 1] + markup[counter - 1];
		}

		menu(choice, numofitems, priceitem, nameitem, markup, lastcost);
		return(0);
	}
	
	public static double output(int choice, int numofitems, double priceitem[], String nameitem[], double markup[], double lastcost[])
	{
		subclass sub = new subclass();
	
	
		sub.output(choice, numofitems, priceitem, nameitem, markup, lastcost);
		
		return(0);	

	}	
	}

subclass.java:

(Toggle Plain Text) 
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.text.DecimalFormat;

public class subclass extends pracloop
{


public static double output(int choice, int numofitems, double priceitem[], String nameitem[], double markup[], double lastcost[])
{
	pracloop prac = new pracloop();
	subclass sub = new subclass();
	
	int counter;
		
	DecimalFormat twoDigits = new DecimalFormat("$.00");

		for(counter = numofitems; counter>0; counter--)
		{	
		
		System.out.println("The price of " + nameitem[counter - 1] + " is: " + twoDigits.format(lastcost[counter - 1]) + ".");
		System.out.println("        ");
		}
		
		prac.menu(choice, numofitems, priceitem, nameitem, markup, lastcost);
		
		return(0);
}



public static String GetConsoleString()
	{
	
	int noMoreInput = -1;
	char enterKeyHit = '\n';
	int InputChar;
	
	StringBuffer InputBuffer = new StringBuffer(30);

	try
	{
		InputChar = System.in.read();
		
		while (InputChar != noMoreInput)
		{
			if ((char) InputChar != enterKeyHit)
			{
				InputBuffer.append((char) InputChar);
			}
			else
			{
				InputBuffer.setLength(InputBuffer.length() -1);
				break;
			}
			InputChar = System.in.read();
		}
	}
	catch(IOException IOX)
	{
		System.err.println(IOX);
	}
	return InputBuffer.toString();	
	
}//end of method GetConsoleString()
	
}

Thanks

PS: I would add [solved] to the title, but it seems I cannot edit my first post.
Last edited by monka; Mar 3rd, 2005 at 8:45 PM.
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Old Mar 3rd, 2005, 8:49 PM   #8
Mjordan2nd
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I edited it for you.
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"Every gun that is made, every warship launched, every rocket signifies, in the final sense, a theft from those who hunger and are not fed, from those who are cold and are not clothed. The world in arms is not spending money alone. It is spending the sweat of its laborers, the genius of its scientists, the hopes of its children." - Dwight D. Eisenhower
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Old Mar 3rd, 2005, 8:50 PM   #9
monka
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Thanks .
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