i dont know how to solve this problem,,it seems that i dont know how to fixed this error
Exception in thread "main" java.lang.StackOverflowError

please helped me,,im stack on it,,

i just have a class
public class ATM{

BankAccount bank = new BankAccount();
SavingsAccount savings = new SavingsAccount();
CheckingAccount checking = new Checking();

//below are the codes..

it seems that when i will click the error,,those lines showed the error,,and i dont know how to fixed it,,can someone helped me??thanks in advance...

A stack overflow error is caused when you run out of stack space. Stack overflow error can mean that you have an infinitely recursive method, since this will cause you to run out of space eventually. The stack is just a block of memory that's made available to your program. I'm pretty sure that block of memory is in RAM but it doesn't matter where it is. If you want to know more about the stack, I'd look up call stack or google stack and look for results pertaining to functions/methods using the stack. Also, you didn't post your code. When you do, make sure its in code tags.

my guess would be an unchecked recursion as well, propably unintended.

something like: