Use the following file:
BankAccountTester.java
public class BankAccountTester
{
public static void main(String[] args)
{
BankAccount account = new BankAccount(100);
account.deposit(-100);
System.out.println(account.getBalance());
System.out.println("Expected: 100");
account.withdraw(-50);
System.out.println(account.getBalance());
System.out.println("Expected: 100");
account.withdraw(200);
System.out.println(account.getBalance());
System.out.println("Expected: 100");
}
}