JAVA Programming HELP!!!!!?

[rikky s]

please please help with java, i dont understand it at all, the question is below.

Create a BankAccount class. Then create another class, BankTest, that will
test your BankAccount, by constructing an object, depositing £1000, withdrawing
£500, then withdrawing additional £400. A remaining balance is printed after
each translation.

Please could you program it and get back to me asap.

Many Thanks
ive tried:

public class BankAccount{

public BankAccount(){
balance =0;
}

public void deposit(double amt){
balance = balance =amt;
}
public void withdraw(double amt){
balance = balance-amt;
}
public double getBalance(){
return balance;
}
}

but still comes up with errors before i test it

[extreme_pc89]

Public Class BankAccount
{
private double balance = <put your desired balance here>;

public BankAccount(){
balance += 1000;
}
public void manipulate(double value){
balance += value;
return getBalance();
}
public double getBalance(){
return balance;
}
}


import java.util.*;
public class BankTest
{
static Scanner scanner = new Scanner(System.in);
static BankAccount bAcc = new BankAccount();
public static void main(String args[]){
int choice = 0;
while(choice!=4){
System.out.println("Enter a choice : 1.View Balance" +
"2.Add 3.Decrease 4.Exit\n");
choice = scanner.nextInt();
if(choice == 1){ System.out.println(bAcc.getBalance()); }
if(choice == 2){
System.out.println("Enter value : ");
double val = scanner.NextDouble();
System.out.println("\n Your bal is : " +
bAcc.manipulate(val));
}if(choice == 3){
System.out.println("Enter value : ");
double val = scanner.NextDouble();
System.out.println("\n Your bal is : " +
bAcc.manipulate(val));
}
}
}