Thread: Little Help, Price Reset is not working

Hi,

I have wrote my Java code but I notice when I click on ClearAll button, it clears all fields apart from the price, I think there is code missing in my script someone fix it for me please.




CarSale.Java

import java.applet.Applet; 
import java.awt.Button; 
import java.awt.Color; 
import java.awt.Label; 
import java.awt.TextArea; 
import java.awt.TextField; 
import java.awt.event.ActionEvent; 
import java.awt.event.ActionListener; 
 
public class CarSale extends Applet implements ActionListener { 
 
   private TextArea txaCars, txaSelected; 
   private TextField txfSelItem; 
   private Label lblCarNo; 
   private Label lblTitle; 
   private TextField txffirstname; 
   private Label lblfirstname; 
   private TextField txflastname; 
   private Label lbllastname; 
   private TextField txfaddress; 
   private Label lbladdress; 
   private TextField txfpostcode; 
   private Label lblpostcode; 
   private Label lblemail; 
   private TextField txfemail; 
   private Label lblphone; 
   private TextField txfphone; 
   private Label lblTotal; 
   private Color colTotal = Color.LIGHT_GRAY;
   private float total;
 
   private Button btnGetItem, btnClearItems, btnClearInfo, btnClearAll, btnSubmit; 
 
   private final int MAXCARS = 100;   // maximum size of arrays 
 
   private Car[] cars;         // cars on offer 
   private Car[] pickedCars;      // cars selected 
 
   private int nbrOfCars = 0;      // number of cars on offer 
   private int nbrCarsPicked = 0;   // number of cars picked so far 
   private int nbrToPick = 0;         // number of cars chosen 
 
   public void init(){ 
      setSize(600,510); 
      setLayout(null); 
      setBackground(Color.GREEN); 
 
      createGUI(); 
 
      cars = new Car[MAXCARS]; 
      pickedCars = new Car[MAXCARS]; 
      makeCar();       
      displayCars(); 
   } 
 
   private void displayCars() { 
      txaCars.setText(""); 
      for(int i = 0; i < nbrOfCars; i++){ 
         txaCars.append("" + i+ ": "); 
         txaCars.append(cars[i].toString() + "\n"); 
 
      } 
   } 
 
   private void displaySelectedCars() { 
      txaSelected.setText(""); 
      for(int i = 0; i < nbrCarsPicked; i++){ 
         txaSelected.append(pickedCars[i] + "\n"); 
      } 
   } 
 
   private void createGUI() { 
 
       lblTitle=new Label("Auto Trader Car Sales"); 
       lblTitle.setBounds(10,10,585,20); 
       lblTitle.setBackground(Color.yellow); 
       add(lblTitle); 
 
 
      lblfirstname = new Label("First Name"); 
      lblfirstname.setBounds(10,40,90,20);; 
      add(lblfirstname); 
 
      txffirstname= new TextField(""); 
      txffirstname.setBounds(110,80,150,20); 
      add(txffirstname); 
 
      lbllastname = new Label("Last Name"); 
      lbllastname.setBounds(10,60,100,20); 
      add(lbllastname); 
 
      txflastname= new TextField (""); 
      txflastname.setBounds(110,100,150,20); 
      add(txflastname); 
 
 
      lbladdress = new Label ("Address"); 
      lbladdress.setBounds(10,80,100,20); 
      add (lbladdress); 
 
      txfaddress=new TextField(""); 
      txfaddress.setBounds(110,120,150,20); 
      add(txfaddress); 
 
 
      lblpostcode =new Label("Post Code"); 
      lblpostcode.setBounds(10,100,100,20); 
      add(lblpostcode); 
 
      txfpostcode=new TextField(""); 
      txfpostcode.setBounds(110,60,150,20); 
      add(txfpostcode); 
 
      lblemail=new Label("Email"); 
      lblemail.setBounds(10,120,100,20); 
      add(lblemail); 
 
      txfemail=new TextField(""); 
      txfemail.setBounds(110,40,150,20); 
      add(txfemail); 
 
      lblphone=new Label("Phone"); 
      lblphone.setBounds(10,140,100,20); 
      add(lblphone); 
 
      txfphone=new TextField(""); 
      txfphone.setBounds(110,140,150,20); 
      add(txfphone); 
 
      btnClearInfo = new Button("Clear Information"); 
      btnClearInfo.setBounds(130,165,110,24); 
      btnClearInfo.addActionListener(this); 
      add(btnClearInfo); 
 
       lblTitle=new Label("Cars For Sale"); 
       lblTitle.setBounds(10,200,585,20); 
       lblTitle.setBackground(Color.yellow); 
       add(lblTitle); 
 
       lblTitle=new Label("Shopping Basket"); 
       lblTitle.setBounds(10,345,585,20); 
       lblTitle.setBackground(Color.yellow); 
       add(lblTitle); 
 
      txaCars = new TextArea("", 10,10,TextArea.SCROLLBARS_BOTH); 
      txaCars.setBounds(10,225,585,85); 
      add(txaCars); 
 
      txaSelected = new TextArea("", 10,10,TextArea.SCROLLBARS_BOTH); 
      txaSelected.setBounds(10,370,585,85); 
      add(txaSelected); 
 
      lblCarNo = new Label("Car Number ?"); 
      lblCarNo.setBounds(56,315,80,30); 
      add(lblCarNo); 
 
      txfSelItem = new TextField(""); 
      txfSelItem.setBounds(140,320,40,20); 
      txfSelItem.addActionListener(this); 
      add(txfSelItem); 
 
      btnGetItem = new Button("Get Car"); 
      btnGetItem.setBounds(200,317,110,24); 
      btnGetItem.addActionListener(this); 
      add(btnGetItem); 
 
      btnClearItems = new Button("Clear Basket"); 
      btnClearItems.setBounds(10,460,110,24); 
      btnClearItems.addActionListener(this); 
      add(btnClearItems); 
 
      btnClearAll = new Button("Clear All"); 
      btnClearAll.setBounds(140,460,110,24); 
      btnClearAll.addActionListener(this); 
      add(btnClearAll); 
 
      btnSubmit = new Button("Submit Order"); 
      btnSubmit.setBounds(480,480,110,24); 
      btnSubmit.addActionListener(this); 
      add(btnSubmit); 
 
      lblTotal = new Label("£0.00");
      lblTotal.setBounds(460,457,130,20);
      lblTotal.setBackground(colTotal);
      add(this.lblTotal);
 
 
 
   } 
 
   public void actionPerformed(ActionEvent e) { 
 
      // Get item 
      if(e.getSource() == btnGetItem || e.getSource() == txfSelItem){ 
         try { 
            nbrToPick = Integer.parseInt(txfSelItem.getText()); 
         } 
         catch(Exception ex){ 
            txfSelItem.setText(""); 
            return; 
         } 
         // See if item exists foe item no entered and there is 
         // room in picked array 
         if(nbrToPick >= 0 && nbrToPick < nbrOfCars 
               && nbrCarsPicked < MAXCARS){ 
            pickedCars[nbrCarsPicked] = cars[nbrToPick]; 
            nbrCarsPicked++; 
            displaySelectedCars(); 
            total = total + cars [nbrToPick].getValue();
            displayTotal();
         } 
         txfSelItem.setText("");             
      }    
      if(e.getSource() == btnClearItems){ 
         txfSelItem.setText("");             
         txaSelected.setText(""); 
         for(int i = 0; i < nbrCarsPicked ; i++) 
            pickedCars[i] = null; 
         nbrCarsPicked = 0;          
         System.out.println("EMPTY SHOPPING BASKET");
      }   
      if(e.getSource() == btnClearInfo){ 
         txffirstname.setText("");             
         txflastname.setText(""); 
         txfaddress.setText(""); 
         txfpostcode.setText(""); 
         txfemail.setText(""); 
         txfphone.setText("");      
         System.out.println("CLEAR CUSTOMER INFORMATION");
      } 
 
   if(e.getSource() == btnClearAll){ 
      txfSelItem.setText("");             
      txaSelected.setText(""); 
      txffirstname.setText("");             
      txflastname.setText(""); 
      txfaddress.setText(""); 
      txfpostcode.setText(""); 
      txfemail.setText(""); 
      txfphone.setText("");      
      System.out.println("RESET ALL");
   } 
   if(e.getSource() == btnSubmit){    
	      txfSelItem.setText("");             
	      txaSelected.setText(""); 
	      txffirstname.setText("");             
	      txflastname.setText(""); 
	      txfaddress.setText(""); 
	      txfpostcode.setText(""); 
	      txfemail.setText(""); 
	      txfphone.setText("");
       System.out.println("ORDER HAS BEEN SUBMITTED + RESET");
    } 
   }
   private void displayTotal() { 
	   this.lblTotal.setText("£" + this.total);
   } 
   private void makeCar() { 
      cars[nbrOfCars] = new Car("Ferrari F430", 120000.00f); 
      nbrOfCars++; 
      cars[nbrOfCars] = new Car("BMW M3", 15000.00f); 
      nbrOfCars++; 
      cars[nbrOfCars] = new Car("Benz Classic", 250000.00f); 
      nbrOfCars++; 
      cars[nbrOfCars] = new Car("Skyline GT", 30000.00f); 
      nbrOfCars++; 
   } 
}

Car.java

public class Car {
 
	String name;
	float value;
 
	/**
	 * @param name the name of the Car
	 * @param value	the value of the Car
	 */
	public Car(String name, float value) {
		super();
		// TODO Auto-generated constructor stub
		this.name = name;
		this.value = value;
	}
 
	/**
	 * @return Returns the name.
	 */
	public String getName() {
		return name;
	}
 
	/**
	 * @param name The name to set.
	 */
	public void setName(String name) {
		this.name = name;
	}
 
	/**
	 * @return Returns the value.
	 */
	public float getValue() {
		return value;
	}
 
	/**
	 * @param value The value to set.
	 */
	public void setValue(float value) {
		this.value = value;
	}
 
	/**
	 * Car display string
	 */
	public String toString() {
		return name + "  (" + value + ")";
	}
}

regards