/***************************************************************/ 
  /*   Program Name:     Lab 4 Experiment Code                                   */ 
  /*                                                             */ 
 /*                                                             */ 
  /*   Program Overview:                                         */ 
  /*     Experiment code for Lab 4                                 */ 
  /*                                                             */ 
  
  /*                                                             */    
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import java.awt.*; // import --->  View classes
import java.awt.event.*;   // Import -->  Controller Classes
import javax.swing.*;
public class Lab4ExperimentCode extends JFrame  implements ActionListener
  // A roman numeral converter JFrame
 
{  //  objects in the class
  
	   JTextField inputData = new JTextField(15);
       JTextField outputData = new JTextField(15);
	   JLabel  inputLabel = new JLabel("Year (between 1000 & 3000 only)  ",Label.LEFT);
	   JLabel  outputLabel = new JLabel("In Roman",Label.LEFT);
	   JButton  submitB = new JButton("OK");
	   JButton  clearB = new JButton("Reset");
       JPanel  displayPanel = new JPanel(new GridLayout(2,3));
	
	// remember to have the main method
    public static void main(String args[])
		  { new Lab4ExperimentCode(); }	
	public Lab4ExperimentCode() 
	{  System.out.println("here the program begins");  // display in the console 
	   displayPanel.setBackground(Color.cyan); 
	   displayPanel.add(inputLabel); displayPanel.add(inputData); displayPanel.add(submitB);
	   displayPanel.add(outputLabel); displayPanel.add(outputData);displayPanel.add(clearB);
	   add(displayPanel); 
	   outputLabel.setFont(new Font("Helvetica", Font.BOLD,16)); 
	   inputLabel.setFont(new Font("Helvetica", Font.BOLD,16)); 
	  
	   
    // Report the buttons to be listened
	   submitB.addActionListener(this);
	   clearB.addActionListener(this);
	   
	   
	   // 
	   setTitle("Roman Number Application");
	   setBounds(200,400,700,100);
	   setVisible(true);
	   }

  // Fullfill the commitments of an ActionListener
  public void actionPerformed(ActionEvent e)
	{
		String whichButton = e.getActionCommand();  // determines which button generated the event evento
		if (whichButton.equals("OK"))
			processSubmitB();
		if (whichButton.equals("Reset"))
			processResetB();
	    validate();repaint();
	    inputData.requestFocus();  // pay attention to this textfield
	  	
	 }  // end action performed
	
   public void processSubmitB()
     {  //  define localvariables
        String roman;  
        int year;
        String stringValue; 
        stringValue = inputData.getText();  // read value
        
         year = Integer.parseInt(stringValue);
         roman = numberConvert(year); 
	     outputData.setText(roman); // desplay value
	    System.out.println("The final roman number is " + roman);  // display in console
               
           
	     } // end processSummitB
      
   private void processResetB()
     {  String stringValue = null;  
	    outputData.setText(stringValue); // display cleared 
	    inputData.setText(stringValue); // display cleared
	     System.out.println("Both textfields are cleared " );  // display in console
      } // end process Reset

  public String numberConvert(int year)
   { int  rest, unit,decade,hundred,thousand;
     String roman="";
      if(year>=1000 && year<=3000)
        {  thousand=year  / 1000;
          rest=year % 1000;
          hundred=rest / 100;
          rest=rest % 100;
          decade=rest / 10;
          unit=rest % 10;
         System.out.println("the number is "+  thousand +" thousand " + hundred +" hundred "+
                  decade  +  " decade "  +  " and "+ unit +" units " );  // display in console
        
          
          // do the roman
          if(thousand==1) roman = roman +"M";
          else if(thousand==2) roman = roman+"MM";
          else if(thousand==3) roman = roman+"MMM";
	           
	      
        System.out.println("the roman so far is = " + roman );  
      // attaching the strings 
	
	    	//for hundreds
        if(hundred==1) roman=roman+"C";
        else if(hundred==2)  roman=roman+"CC";
        else if(hundred==3)roman=roman+"CCC";
        else if(hundred==4) roman=roman+"CD";
        else if(hundred==5)roman=roman+"D";
        else if(hundred==6) roman=roman+"DC";
        else if(hundred==7) roman=roman+"DCC";
        else if(hundred==8) roman=roman+"DCCC";
        else if(hundred==9) roman=roman+"CM";
	            
         System.out.println("the roman so far is = " + roman );
     		//for decades
         if(decade==1)  roman=roman+"X";
         else if(decade==2)roman=roman+"XX";
         else if(decade==3) roman=roman+"XXX";
         else if(decade==4) roman=roman+"XL";
         else if(decade==5) roman=roman+"L";
         else if(decade==6)roman=roman+"LX";
         else if(decade==7)roman=roman+"LXX";
         else if(decade==8) roman=roman+"LXXX";
         else if(decade==9) roman=roman+"XC";
	           
       System.out.println("the roman so far is = " + roman );
      ///for units
        if(unit==1)roman=roman+"I";
        else if(unit==2) roman=roman+"II";
        else if(unit==3) roman=roman+"III";
        else if(unit==4) roman=roman+"IV";
        else if(unit==5) roman=roman+"V";
        else if(unit==6) roman=roman+"VI";
        else if(unit==7) roman=roman+"VII";
        else if(unit==8) roman=roman+"VIII";
        else if(unit==9) roman=roman+"IX";
	       System.out.println("the roman so far is = " + roman );
         }
      else
	 { System.out.println("The value is not the 1,000 to 3,000 range, please re submmit");
	  roman = "Not in 1,000-3,000 range"; }
   return roman ;
   }

   
}	// end of class