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Posted on 2006-06-13
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Last Modified: 2010-03-31
first add setters and getter to your class

public class Transaction {

  private String recordTrans ;
  private String accountNumber1 ;
  private String accountNumber2 ;
  private double amt ;
  private Calendar date ;
  private String type ;

     Calendar date;
     private Object rec;
     
     public Transaction(){
     
     }

     public void setType(String type) {
        this.type = type;
     }

     public String getType() {
        return type;    
    }

     
}



Transaction tx = new Transaction();
tx.setType("xxx");
tx.setDate(Calendar.getInstance());
}

this is my file and I am getting errors...cld someone help to fix...i dont get what its saying.

these are the errors: --------------------Configuration: <Default>--------------------
C:\Documents and Settings\Transaction.java:1: 'class' or 'interface' expected
first add setters and getter to your class
^
C:\Documents and Settings\Transaction.java:2: <identifier> expected
^
C:\Documents and Settings\Transaction.java:3: '{' expected
public class Transaction {
       ^
C:\Documents and Settings\Transaction.java:33: <identifier> expected
tx.setType("xxx");
          ^
C:\Documents and Settings\Transaction.java:34: <identifier> expected
tx.setDate(Calendar.getInstance());
          ^
5 errors

Process completed.

for the setters and getters, my entry in is correct..but it still says an error...why?
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Question by:basgen
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4 Comments
 
LVL 15

Accepted Solution

by:
Javatm earned 2000 total points
ID: 16898557
You can't just intanciate the class ijust like that, better yet call it in a different class or create a main method to test it like :

import java.text.SimpleDateFormat;
import java.util.Calendar;

public class Transaction {

      private String recordTrans;
      private String accountNumber1;
      private String accountNumber2;
      private double amt;
      private Calendar date;
      private Object rec;
      private String type;

      public Transaction() {      }

      public void setType(String type) {
            this.type = type;
      }

      public String getType() {
            System.out.println(type);
            return type;
      }
      
      public void setDate(Calendar date) {
            this.date = date;
      }
      
      public Calendar getDate() {
            // Formatter for Date
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd - HH.mm.ss");
            System.out.println(sdf.format(date.getTime()));
            //System.out.println(s);
            return date;
      }

      public static void main(String args[]) {
            Transaction tx = new Transaction();
            tx.setType("Type String !");
            tx.setDate(Calendar.getInstance());
            tx.getType();
            tx.getDate();
            System.exit(0);
      }
}

PS: I removed some un-neccessary data.
0
 

Author Comment

by:basgen
ID: 16898634
hey Javatm would you be able to help in a problem that I was trying to figure out from the start?
0
 
LVL 15

Expert Comment

by:Javatm
ID: 16904733
Shoot I'll try.
0
 

Author Comment

by:basgen
ID: 16908384
okie, i have this prob...this prog has so many errors and i cant understand where this is coming from? hava a look...ill give u the prog n the errors..

 public class AuditedTest {
  public static void main(String[] args) {
            
            AuditedCard  wallet[] = new AuditedCard [10]; ;         
          wallet[0] = new AuditedCard("5391 0375 9387 5309", "John Bowman",
                                   "California Savings", 0.0, 2500);
          wallet[1] = new AuditedCard("3485 0399 3395 1954", "John Bowman",
                                   "California Federal", 0.0, 3500);
          wallet[2] = new AuditedCard("6011 4902 3294 2994", "John Bowman",
                                   "California Finance", 0.0, 5000);
                            
          System.out.println("Credit Card Payments:");
   
          for(int j=0; j<wallet.length; j++) {
                if(j==0){
                      wallet[j].recordTrans("new", 0);
                      for (int i=1; i<=16; i++) {
                            wallet[j].recordTrans("debit", (double) i);      
                      }
                      wallet[j].print();
                      wallet[j].recordTrans("credit", 100.0);
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].print();
                } else if(j==1){
                      wallet[j].recordTrans("new", 0);
                      for (int i=1; i<=16; i++) {
                              wallet[j].recordTrans("debit", 2.0 * i);      
                      }
                      System.out.println();
                      wallet[j].print();
                      wallet[j].recordTrans("credit", 100.0);
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].recordTrans("credit", 100.0);                
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].print();
                } else {
                      wallet[j].recordTrans("new", 0);
                      for (int i=1; i<=16; i++) {
                              wallet[j].recordTrans("debit", (double) 3 * i);      
                      }
                      System.out.println();
                      wallet[j].print();
                      wallet[j].recordTrans("credit", 100.0);
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].recordTrans("credit", 100.0);
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].recordTrans("credit", 100.0);                
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].recordTrans("credit", 100.0);                
                      System.out.println("New Balance = " + wallet[j].getBalance());
                      wallet[j].print();
                }           
          }
    }
}


when i run the prog, i get an error, exception in thread "main" java .lang.NullpointerException at AuditedTest.main...would you be able to have a look?
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