How do I access method of an object from another object of the same class?

Question

I'm building a Mobile Money System using Java. The program is running fine but I want to send money from one object (user) to another object(user) by accessing the deposit method of object one(receiver) from object two(sender). Can someone help please?

Answer 1

here's a generic class to get the idea across:

class MyClass{

private num;
public static void main(String[] args){
MyClass my_account = new MyClass(50);
MyClass your_account = new MyClass(20);

your_account.transfer(my_account, 30);
}
public MyClass(int num){

this.num = num;

}

public transfer(MyClass to, int amount){

to.num += amount;
num -= amount;

}

}

Though as @Ipang said, realistically these methods should be supplied through the API you're working with (unless you're building the server/app pair from scratch, there should be some sort of API supplied to interface with the bank's servers, where the bank's programs do their "thing somewhere in between").

Now, I haven't added a check to this at all (usually you check the balance first before transferring), but I did so for the sake of conciseness.

Hope this helps in some way.

Answer 2

By the conventional way, that is the bank's responsibility to manage the process.

So for example, I can't just magically transfer money to my sister without the bank doing its thing somewhere in between, right?

Answer 3

void sendMoney( Customer receiver, int amount) {
//..
receiver.getMoney(amount);
}

Answer 4

Thanks Alot

BootInk
zemiak