Error when compile my program.

Question

Can someone help me out, please. I've been trying to figure out why I got this error message when I compile the app.
This is the error message:
Account.java:27: cannot find symbol
symbol : variable balance
location: class Account
currentBalance = balance amount;
+^+
Account.java:27: incompatible types
found   : <nulltype>
required: double
currentBalance = balance amount;
^
Account.java:32: cannot find symbol
symbol : variable balance
location: class Account
if(balance >= amount){
^
Account.java:33: cannot find symbol
symbol : variable balance
location: class Account
currentBalance = balance - amount;
^
This is my program:
import java.util.Scanner;
public class Account
protected String accountHolder;
protected int accountNumber;
protected double currentBalance;
public Account(String holder, int number, double balance)
accountHolder = holder;
accountNumber = number;
if(balance > 00.00){
currentBalance = balance;
public Account()
currentBalance = 00.00;
public void deposit(double amount)
currentBalance = balance + amount;
public double withdraw(double amount)
if(balance >= amount){
currentBalance = balance - amount;
return amount;
public void setHolder( String holder )
accountHolder = holder;
public String getHolder()
return accountHolder;
public void setNumber(int number)
accountNumber = number;
public int getNumber()
return accountNumber;
public void setBalance(double balance)
currentBalance = balance;
public double getBalance()
return currentBalance;
public String toString()
return String.format("%s %s\n %s %f\n %s %.2f\n", "Name", accountHolder, "AccountNmber", accountNumber, "Current balance", currentBalance);
}//end class Account

Answer 1

Yanepe wrote:
Can someone help me out, please. I've been trying to figure out why I got this error message when I compile the app.
This is the error message: No, that is *4* error messages. It pays to write, compile & debug code in small steps. Ending up with 71 lines of code with 4 compilation errors is not doing things in small steps.
Account.java:27: cannot find symbol
symbol : variable balance
location: class Account
currentBalance = balance amount;
+^+Where did you declare the 'balance' variable?
As an aside, is this a template you are working from? I find it hard to understand how you got this far, yet are unable to identify what to do with that compile error.
Also, when posting code, code snippets, HTML/XML or input/output, please use the code tags. Using the code tags helps rreatin the indentation and formatting of the sample. To use the code tags, select the sample and click the CODE button.
Here is how your code might appear in the code tags.
import java.util.Scanner;
public class Account
   protected String accountHolder;
   protected int    accountNumber;
   protected double currentBalance;
   public Account(String holder, int number, double balance)
       accountHolder = holder;
       accountNumber = number;
       if(balance > 00.00){
          currentBalance = balance;
   public Account()
       currentBalance = 00.00;
   public void deposit(double amount)
       currentBalance = balance + amount;
   public double withdraw(double amount)
       if(balance >= amount){
          currentBalance = balance - amount;
          return amount;
   public void setHolder( String holder )
       accountHolder = holder;
   public String getHolder()
       return accountHolder;
   public void setNumber(int number)
       accountNumber = number;
   public int getNumber()
       return accountNumber;
   public void setBalance(double balance)
       currentBalance = balance;
   public double getBalance()
       return currentBalance;
   public String toString()
       return String.format("%s %s\n %s %f\n %s %.2f\n", "Name", accountHolder, "AccountNmber", accountNumber, "Current balance", currentBalance);
}//end class Account