account.java

package accounttest1;

// This defines a "type" of object which you can create, etc.
public class Account {
    
    // this defines a "hidden" or "private" variable.
    // this is a variable which is only able to be accessed from
    // within the account class methods
    // The "int" defines this variable as an "integer" which is a
    // type of number, with no decimal points
    private int balance;
    
    // this is a constructor, there is no "type" defined after the "public" statement
    // this essentially allows you to create an object of the "type" "Account"
    public Account(int balance){
        this.balance = balance;
    }
    
    // this is a public method which can be used by code outside of this class.
    // This returns nothing (hence the "void" type).
    // It takes an int variable named debit
    public void debit(int debit){
        // here we take the debit variable AWAY from this object balance variable
        // and we set this objects balance to that result
        this.balance = this.balance - debit;
   }
    
    // this is pretty similar to the debit class method.
    // this takes an integer and adds to the balance
    public void credit(int credit) {
        this.balance = this.balance + credit;
    }
     
     // this is a method which returns something with the int type.
    public int getBalance() {
        return this.balance;
    }
}