public class SavingsAccount {
public static void main(String[] args) {
AccountCaculation myAccount = new AccountCaculation(1000).deposit(2000);
AccountCaculation yourAccount = new AccountCaculation().deposit(5000);
myAccount.printBalance();
yourAccount.printBalance();
System.out.println(AccountCaculation.totalBalance);
System.out.println(AccountCaculation.usd2Rmb(myAccount.balance));
//Objects(instances) as array members
AccountCaculation[] accountArray = new AccountCaculation[3];
for (int i=0; i