created file writing system; need to fix variables;

src/main/java/temp.java

@@ -4,7 +4,7 @@
  * and open the template in the editor.
  */
 import java.io.*;
-
+import java.util.Scanner;
 /**
  *
  * @author rober
@@ -278,7 +278,7 @@ public class temp extends javax.swing.JFrame {
                 ID = "02";
                 break;
             case "Drink":
-                Price = "£1";
+                Price = "£2";
                 ID = "03";
                 break;
             case "Snack":
@@ -329,7 +329,7 @@ public class temp extends javax.swing.JFrame {
            error.setText("Error: Payment not valid");                     
         } else if(amount >= cost) {
             error.setText("Payment valid");
-            change = change + (amount - cost);
+            change += amount - cost;
             moneyInput.setText(String.valueOf(amount - cost));
             purchase();
         }
@@ -416,38 +416,58 @@ public class temp extends javax.swing.JFrame {
     }
     
     public void print(){
-        File f = new File("receipt.txt");
-        //creates a file
-        f.setWritable(rootPaneCheckingEnabled);
-        //makes sure the file can be written to
+        try {
+            FileWriter f = new FileWriter("receipt.txt");
             
-        f.createNewFile();
-        //f. ("Code\tItem\t\tPrice\tQuantity \t");
+            f.write("Items purchased: \n");
+            f.write("Code\tItem\t\tPrice\tQuantity \n");
+            String line = ""; 
 
             //displays the menu the the user
             for(int i=0; i < price.length; i++) {
                 if(basket[i]!=0) {
-                f.write(itemCode[i]+"\t");
+                
+                    line = (itemCode[i]+"\t");
+                    f.write(line);
                 //displays the item code
                 if (i==0||i==1||i==3) {
                     //this adds a second tab for shorter items which would otherwise display incorrectly
-                    writer.write(itemName[i]+"\t\t");
+                    line = (itemName[i]+"\t");
+                    f.write(line);
 		} else {
                     //if the item name is not short, it only gets one tab
-                    writer.write(itemName[i]+"\t");
+                    line = (itemName[i]+"\t");
+                    f.write(line);
 		}
-		writer.write(""+price[i]+"\t");
+		line = (""+price[i]+"\t");
+                f.write(line);
                 //displays the price
 		if(basket[i]!=0) {
-                    writer.write(basket[i]+"\t");                   
+                    line = (basket[i]+"\t");  
+                    f.write(line);
 		} else {
-                    writer.write("Not in Stock");
+                    f.write("Not in Stock");
 		}
 	
 		//adds a new line to display the next item.
-		writer.write("\n");
+		line = ("\n");
+                f.write(line);
             }        
+                f.write("Total cost: " + cost + "\n");
+                f.write("Total payed: " + amount + "\n");
+                f.write("Change Given: " + change + "\n");
+                
+                f.close();
+        }
+        } catch(Exception e) {  
+             e.printStackTrace();
+             //catches execptions, the program wouldn't let me run it until i wrote this.
         }
+        //creates a file
+
+        //streams to the file.
+        
+
     }
 
     // Variables declaration - do not modify