package?Banking1;
//賬戶(hù)
public?class?Account?{

	private?double?balance;???//賬戶(hù)余額
	public?Account（double?init_balance）{
		balance?=?init_balance;
	}

	public?double?getBalance（）{
		return?balance;
	}
	
	//存錢(qián)
	public?void?deposit（double?amt）{??//amt：要存的額度
		balance+=amt;
	}
	
	//取錢(qián)
	public?void?withdraw（double?amt）{??//amt：要取的額度
		if（balance?>=amt）{
			balance?-=amt;
		}else{
			System.err.println（“余額不足“）;
		}
	}
}

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----
?????目錄???????????0??2014-12-25?13:38??Bank\
?????文件?????????301??2014-11-23?10:49??Bank\.classpath
?????文件?????????380??2014-11-23?10:49??Bank\.project
?????目錄???????????0??2014-12-25?13:38??Bank\.settings\
?????文件?????????598??2014-11-23?10:49??Bank\.settings\org.eclipse.jdt.core.prefs
?????目錄???????????0??2014-12-25?13:38??Bank\bin\
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking1\
?????文件?????????817??2014-12-19?11:04??Bank\bin\Banking1\Account.class
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking2\
?????文件?????????817??2014-12-19?11:04??Bank\bin\Banking2\Account.class
?????文件?????????879??2014-12-19?11:04??Bank\bin\Banking2\Customer.class
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking3\
?????文件?????????824??2014-12-19?11:04??Bank\bin\Banking3\Account.class
?????文件?????????879??2014-12-19?11:04??Bank\bin\Banking3\Customer.class
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking4\
?????文件?????????824??2014-12-19?11:04??Bank\bin\Banking4\Account.class
?????文件?????????868??2014-12-19?11:04??Bank\bin\Banking4\Bank.class
?????文件?????????879??2014-12-19?11:04??Bank\bin\Banking4\Customer.class
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking5\
?????文件?????????824??2014-12-19?11:04??Bank\bin\Banking5\Account.class
?????文件?????????868??2014-12-19?11:04??Bank\bin\Banking5\Bank.class
?????文件?????????877??2014-12-19?11:04??Bank\bin\Banking5\CheckingAccount.class
?????文件?????????879??2014-12-19?11:04??Bank\bin\Banking5\Customer.class
?????文件?????????567??2014-12-19?11:04??Bank\bin\Banking5\SavingAccount.class
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking5_1\
?????目錄???????????0??2014-12-25?13:38??Bank\bin\Banking6\
?????目錄???????????0??2014-12-25?13:38??Bank\bin\TestBank\
?????文件????????1109??2014-12-19?11:04??Bank\bin\TestBank\Testbanking.class
?????文件????????1587??2014-12-19?11:04??Bank\bin\TestBank\Testbanking2.class
?????文件????????1437??2014-12-19?11:04??Bank\bin\TestBank\Testbanking3.class
?????文件????????1360??2014-12-19?11:04??Bank\bin\TestBank\Testbanking4.class
............此處省略28個(gè)文件信息