//Sana Yousuf      Yay for java!
   import java.awt.*;     
   import java.awt.event.*;     
   import javax.swing.*;     
   import java.text.DecimalFormat;      // include files
   import java.io.*;     
   import java.io.File;     
        
   public class test extends JFrame      
   {     
           
        
      private Container content;		 //fields     
      private JPanel north, center, south;     
      private JLabel label1, label2, label3, label4;     
      private ActionListener li1, li2;     
      private Button button, increaser, decreaser;     
      private JTextField[][] inputs;     
      private static int z;     
      private int last;     
      private static test window;     
      private String fileName;     
      private String one="Cancel";     
      private boolean cancelled=false;     
   
        
      public test()		//default-constructor     
      {     
           
	String s= JOptionPane.showInputDialog("How many different items do you want to order?:");   // askes how many fields users wants   
        z= Integer.parseInt(s);     
	 //z=5;     
	 content = getContentPane();     					// creates major panel
         content.setLayout(new BorderLayout());     
           
         north = new JPanel();     						// creates north
         north.setLayout( new GridLayout(1, 1));     
         content.add(north, BorderLayout.NORTH);     
           
        label1= createAndAddLabel("SKU",SwingConstants.CENTER, north);	 	// creates four labels     
	label2= createAndAddLabel("Description",SwingConstants.CENTER, north);     
      	label3= createAndAddLabel("Price",SwingConstants.CENTER, north);     
      	label4= createAndAddLabel("Quantity",SwingConstants.CENTER, north);     
		      
	center = new JPanel();							 // creates center panel     
	center.setLayout( new GridLayout(z,4));     
	content.add(center, BorderLayout.CENTER);     
           
        south =  new JPanel();     						// creates south panel 
        south.setLayout( new GridLayout (2, 1));     
        content.add(south, BorderLayout.SOUTH);     
		      
	inputs= new JTextField[z+10][4]; 				     // makes a matrix of textfields
	last=z+10;     
	for(int x=0; x<z; x++)     						// initializes the matrix
	    for(int y=0; y<4; y++)     
		{     
		if(y==2)     
		  inputs[x][y] =  createAndAddTextField(0, "$", center);     
		else     
		  inputs[x][y]= createAndAddTextField(0,"", center);     
		}     
		 
        li1= new Handler();   						  //Handlers for button action
	li2= new Handler2();     
                  
	increaser= createAndAddButton("More Fields",li2, south);  		// creates two
	buttons    
	button = createAndAddButton("SUBMIT",li1, south);     
	           
      }     
        
      private JTextField createAndAddTextField(int x, String s, JPanel j)  	// helper method for making textfields   
      {     
         JTextField temp = new JTextField(x);     
	 temp.setText(s);     
         j.add(temp);     
         return temp;     
      }     
        
      private JLabel createAndAddLabel(String s, JPanel p)    			 // helper method for making labels
      {     
         JLabel temp = new JLabel();     
         temp.setText(s);     
         p.add(temp);     
         return temp;     
      }     
      
     private Button createAndAddButton(String s, ActionListener l, JPanel p)	// helper method for making buttons     
      {     
         Button temp = new Button(s);     
         temp.addActionListener(l);     
         p.add(temp);     
         return temp;     
      }     
	
	       
      private JLabel createAndAddLabel(String s, int x,  JPanel p)     		// helper method for making labels
      {     
         JLabel temp = new JLabel();     
         temp.setText(s);     
         temp.setHorizontalAlignment(x);     
         p.add(temp);     
         return temp;     
      }     
        
          
      private class Handler implements ActionListener   			  // method for handler(action) 1
      {     
         public void actionPerformed(ActionEvent e)      
         {     
            input();     
            //process();     
            output();     
	    System.exit(0);     
         }     
      }     
        
      private class Handler2 implements ActionListener  			 // method for handler (action 2)  
	{     
	public void actionPerformed(ActionEvent e)     
		{     
		more();     
		}     
	}     
		     
					     
	private void more()   						  // adds another textfield
	{     
        	center.setLayout( new GridLayout(z+1, 4));     
		for(int x=0; x<4; x++)     
		{     
		if(x==2)     
	           inputs[z][x] =  createAndAddTextField(0, "$", center);     
		else     
		   inputs[z][x]= createAndAddTextField(0,"", center);     
		}     
		z++;     
		if(z==last)     
		  increaser.setEnabled(false);     
		window.resize(400, 20);     
		window.resize(400, (int) getAlignmentX() + 20 + 40*z);     
     	}     
     
      private void input()     						// method for file saving
      {     
      
      
	  fileName= JOptionPane.showInputDialog("Filename to be saved as (type CANCEL to cancel order): ");     
           
	  if(fileName.equalsIgnoreCase(one))     
		  {     
		  cancelled=true;     
	 		  return;     
		  }     
	  try {
            FileWriter outStream = new FileWriter (fileName);     
			for(int x=0; x<z;x++)     
		{     
			for(int y=0; y<4; y++)     
			outStream.write (inputs[x][y].getText() + "	");     
			outStream.write("\n");
		}     
			outStream.close();
        } catch (IOException e) {
            //joptionpane error message should go here     
            e.printStackTrace();     
			
        }     
	  
       
	   		     
      private void output()    							 //outputs saved file
      {     
	  if(cancelled==true)     
  	   {     
	 	JOptionPane.showMessageDialog(null, "Order Cancelled!!");     
	 	return;     
  	   }     
	  String option = "";     
	  for(int x=0; x<z; x++)     
	     {     
       		option += "Sku:" + inputs[x][0].getText();     
		option += "  Description:" + inputs[x][1].getText();     
		option += "  Price:" + inputs[x][2].getText();     
		option += "  Quantity:" + inputs[x][3].getText();     
		option += "\n";     
	     }     
      	JOptionPane.showMessageDialog(null, option);       
	        
      }     
        
        
        
      public static void main(String[] args)  				// programs main method    
      {     
      	//create graphics window     
         window = new test();     
        //configure graphics window     
         window.setSize(400,20+40*z);     
         window.setLocation(100, 175);     
         window.setTitle("Laura Ashley Order Form");     
         window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     
           
      	//display graphics window     
         window.setVisible(true);     
      }     
   }