Наследование Python: пошаговое руководство

ast Python module | code Python module | COM PHP module | dis Python module | Ev PHP module | http Python module | imp Python module | io Python module | keyword Python module | nis Python module | os Python module | PS PHP module | Python functions | re Python module | SPL PHP module | StackOverflow | struct Python module | Sync PHP module | time Python module

–í—Å–µ –º–µ—Ç–æ–¥—ã –∏ –ø–µ—Ä–µ–º–µ–Ω–Ω—ã–µ, –∫–æ—Ç–æ—Ä—ã–µ –º—ã –æ–±—ä—è–≤–ª—è–µ–º –≤ –Ω–∞—à–µ–º –∫–ª–∞—Å—Å–µ BankAccount, –±—É–¥—É—Ç –¥–æ—Å—Ç—É–ø–Ω—ã –≤ –Ω–∞—à–µ–º –¥–æ—á–µ—Ä–Ω–µ–º –∫–ª–∞—Å—Å–µ.

–î–ª—è –∏–ª–ª—é—Å—Ç—Ä–∞—Ü–∏–∏ –Ω–∞—à –∫–ª–∞—Å—Å –≤ –¥–µ–π—Å—Ç–≤–∏–∏, –¥–∞–≤–∞–π—Ç–µ —Å–æ–∑–¥–∞–¥–∏–º –ø—Ä–∏–º–µ—Ä –±–∞–Ω–∫–æ–≤—Å–∫–æ–≥–æ —Å—á–µ—Ç–∞. –ú—ã –º–æ–∂–µ–º —Å–¥–µ–ª–∞—Ç—å —ç—Ç–æ, –∏—Å–ø–æ–ª—å–∑—É—è —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥:

–≠—Ç–æ —Å–æ–∑–¥–∞—Å—Ç —É—á–µ—Ç–Ω—É—é –∑–∞–ø–∏—Å—å –¥–ª—è John Appleseed, –∫–æ—Ç–æ—Ä–∞—è —Å–æ–¥–µ—Ä–∂–∏—Ç 100 –¥–æ–ª–ª–∞—Ä–æ–≤ –°–®–ê. –¢–µ–ø–µ—Ä—å —á—Ç–æ —É –Ω–∞—Å –µ—Å—Ç—å –≥–æ—Ç–æ–≤–∞—è —É—á–µ—Ç–Ω–∞—è –∑–∞–ø–∏—Å—å, –º—ã –º–æ–∂–µ–º –Ω–∞—á–∞—Ç—å —Å—Å—ã–ª–∞—Ç—å—Å—è –Ω–∞ –Ω–µ–µ, –∫–∞–∫ –Ω–∞ –ª—é–±–æ–π –¥—Ä—É–≥–æ–π –∫–ª–∞—Å—Å. –í–æ—Ç –ø—Ä–∏–º–µ—Ä —Ç–æ–≥–æ, –∫–∞–∫ –º—ã –∑–∞–ø—É—Å–∫–∞–µ–º –º–µ—Ç–æ–¥ getBalance () –≤ –Ω–∞—à–µ–º –±–∞–Ω–∫–æ–≤—Å–∫–æ–º —Å—á–µ—Ç–µ, —á—Ç–æ–±—ã —É–∑–Ω–∞—Ç—å, —Å–∫–æ–ª—å–∫–æ –¥–µ–Ω—å–≥–∏ —É –Ω–∞—Å –µ—Å—Ç—å:

–ù–∞—à–∞ –ø—Ä–æ–≥—Ä–∞–º–º–∞ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç —Å–ª–µ–¥—É—é—â–µ–µ:

–î–æ—á–µ—Ä–Ω–∏–µ –∫–ª–∞—Å—Å—ã

–í –ø—Ä–∏–≤–µ–¥–µ–Ω–Ω–æ–º –≤—ã—à–µ –ø—Ä–∏–º–µ—Ä–µ –º—ã –æ–±—ä—è–≤–∏–ª–∏ —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏–π –∫–ª–∞—Å—Å, –≤ –∫–æ—Ç–æ—Ä–æ–º —Ö—Ä–∞–Ω—è—Ç—Å—è –±–∞–Ω–∫–æ–≤—Å–∫–∏–µ —Å—á–µ—Ç–∞. –ù–æ —á—Ç–æ, –µ—Å–ª–∏ –º—ã —Ö–æ—Ç–∏–º —Ö—Ä–∞–Ω–∏—Ç—å –∏–Ω—Ñ–æ—Ä–º–∞—Ü–∏—é –æ–± –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω–æ–º —Ç–∏–ø–µ —É—á–µ—Ç–Ω–æ–π –∑–∞–ø–∏—Å–∏, –Ω–∞–ø—Ä–∏–º–µ—Ä –æ–± —É—á–µ—Ç–Ω–æ–π –∑–∞–ø–∏—Å–∏ —Ä–µ–±–µ–Ω–∫–∞ –º–ª–∞–¥—à–µ 18 –ª–µ—Ç? –í–æ—Ç –≥–¥–µ –Ω–∞ –ø–æ–º–æ—â—å –ø—Ä–∏—Ö–æ–¥—è—Ç –¥–æ—á–µ—Ä–Ω–∏–µ –∫–ª–∞—Å—Å—ã.

–î–æ—á–µ—Ä–Ω–∏–µ –∫–ª–∞—Å—Å—ã –∏–ª–∏ –ø–æ–¥–∫–ª–∞—Å—Å—ã –Ω–∞—Å–ª–µ–¥—É—é—Ç –∑–Ω–∞—á–µ–Ω–∏—è –æ—Ç —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–≥–æ –∫–ª–∞—Å—Å–∞. –≠—Ç–æ –æ–∑–Ω–∞—á–∞–µ—Ç, —á—Ç–æ –∫–∞–∂–¥—ã–π –¥–æ—á–µ—Ä–Ω–∏–π –∫–ª–∞—Å—Å —Å–º–æ–∂–µ—Ç —Å—Å—ã–ª–∞—Ç—å—Å—è –Ω–∞ –º–µ—Ç–æ–¥—ã –∏ –ø–µ—Ä–µ–º–µ–Ω–Ω—ã–µ, –∫–æ—Ç–æ—Ä—ã–µ –º—ã –æ–±—ä—è–≤–ª—è–µ–º –≤ –Ω–∞—à–µ–º —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–º –∫–ª–∞—Å—Å–µ.

–ò—Ç–∞–∫, –¥–æ–ø—É—Å—Ç–∏–º, –º—ã —Ö–æ—Ç–∏–º —Å–æ–∑–¥–∞—Ç—å –¥–æ—á–µ—Ä–Ω–∏–π –∫–ª–∞—Å—Å –¥–ª—è ChildBankAccount. –≠—Ç–æ—Ç –∞–∫–∫–∞—É–Ω—Ç –¥–æ–ª–∂–µ–Ω –∏–º–µ—Ç—å –≤–æ–∑–º–æ–∂–Ω–æ—Å—Ç—å –≤–æ–∑–≤—Ä–∞—â–∞—Ç—å –∏–Ω—Ñ–æ—Ä–º–∞—Ü–∏—é –æ –±–∞–Ω–∫–æ–≤—Å–∫–æ–º —Å—á–µ—Ç–µ –ø–æ–ª—å–∑–æ–≤–∞—Ç–µ–ª—è & mdash; –µ–≥–æ –∏–º—è –∏ –±–∞–ª–∞–Ω—Å & mdash; –∏ —Ç–∞–∫–∂–µ –¥–æ–ª–∂–Ω–æ –∏–º–µ—Ç—å –Ω–æ–≤–æ–µ –∑–Ω–∞—á–µ–Ω–∏–µ –ø–æ–¥ –Ω–∞–∑–≤–∞–Ω–∏–µ–º limited. –≠—Ç–æ –∑–Ω–∞—á–µ–Ω–∏–µ –±—É–¥–µ—Ç —Ö—Ä–∞–Ω–∏—Ç—å—Å—è –≤ —É—á–µ—Ç–Ω–æ–π –∑–∞–ø–∏—Å–∏ —Ä–µ–±–µ–Ω–∫–∞, –ø–æ—Ç–æ–º—É —á—Ç–æ –æ–Ω –º–ª–∞–¥—à–µ 18 –ª–µ—Ç –∏ –Ω–µ –∏–º–µ–µ—Ç –ø—Ä–∞–≤–∞ –Ω–∞ –æ—Ç–∫—Ä—ã—Ç–∏–µ –ø–æ–ª–Ω–æ–≥–æ –±–∞–Ω–∫–æ–≤—Å–∫–æ–≥–æ —Å—á–µ—Ç–∞.

–ß—Ç–æ–±—ã —Å–æ–∑–¥–∞—Ç—å –¥–æ—á–µ—Ä–Ω–∏–π –∫–ª–∞—Å—Å, –º—ã –º–æ–∂–µ–º –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥: < / p>

ChildBankAccount —Å—Ç–∞–Ω–æ–≤–∏—Ç—Å—è –¥–æ—á–µ—Ä–Ω–∏–º –ø–æ –æ—Ç–Ω–æ—à–µ–Ω–∏—é –∫ –∫–ª–∞—Å—Å—É BankAccount, –ø–æ—Å–∫–æ–ª—å–∫—É BankAccount –∑–∞–∫–ª—é—á–µ–Ω –≤ –∫—Ä—É–≥–ª—ã–µ —Å–∫–æ–±–∫–∏. –ï—Å–ª–∏ –º—ã —Ö–æ—Ç–∏–º, —á—Ç–æ–±—ã –Ω–∞—à –¥–æ—á–µ—Ä–Ω–∏–π –∫–ª–∞—Å—Å –∏–º–µ–ª —Ç–æ—á–Ω–æ —Ç–∞–∫–∏–µ –∂–µ –∑–Ω–∞—á–µ–Ω–∏—è, –∫–∞–∫ –∏ –Ω–∞—à —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏–π –∫–ª–∞—Å—Å & mdash; BankAccount & mdash;, –º—ã –º–æ–∂–µ–º –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å –∫–ª—é—á–µ–≤–æ–µ —Å–ª–æ–≤–æ pass —Å–ª–µ–¥—É—é—â–∏–º –æ–±—Ä–∞–∑–æ–º:

–ù–æ, –∫–∞–∫ –º—ã –æ–±—Å—É–∂–¥–∞–ª–∏ —Ä–∞–Ω–µ–µ, –¥–ª—è –Ω–∞—à–µ–π –¥–æ—á–µ—Ä–Ω–µ–π —É—á–µ—Ç–Ω–æ–π –∑–∞–ø–∏—Å–∏ –ø–æ—Ç—Ä–µ–±—É–µ—Ç—Å—è –¥–ª—è —Ö—Ä–∞–Ω–µ–Ω–∏—è —Å–ø–µ—Ü–∏–∞–ª—å–Ω–æ–≥–æ –∑–Ω–∞—á–µ–Ω–∏—è: –ø–µ—Ä–µ–º–µ–Ω–Ω–æ–π, –∫–æ—Ç–æ—Ä–∞—è –≥–æ–≤–æ—Ä–∏—Ç, —á—Ç–æ —É—á–µ—Ç–Ω–∞—è –∑–∞–ø–∏—Å—å –ø–æ–ª—å–∑–æ–≤–∞—Ç–µ–ª—è –æ–≥—Ä–∞–Ω–∏—á–µ–Ω–∞.

–î–ª—è –¥–æ—Å—Ç–∏–∂–µ–Ω–∏—è —ç—Ç–æ–π —Ü–µ–ª–∏ –º—ã —Å–æ–±–∏—Ä–∞–µ–º—Å—è –¥–æ–±–∞–≤–∏—Ç—å –Ω–æ–≤–æ–µ –∑–Ω–∞—á–µ–Ω–∏–µ –ø–æ–¥ –Ω–∞–∑–≤–∞–Ω–∏–µ–º limited –∫ –Ω–∞—à–µ–º—É –¥–æ—á–µ—Ä–Ω–∏–π –∫–ª–∞—Å—Å. –ú—ã –º–æ–∂–µ–º —Å–¥–µ–ª–∞—Ç—å —ç—Ç–æ, –∏—Å–ø–æ–ª—å–∑—É—è —Å–ª–µ–¥—É—é—â–∏–π –∫–æ–¥:

–¢–µ–ø–µ—Ä—å –¥–∞–≤–∞–π—Ç–µ —Ä–∞–∑–±–µ—Ä–µ–º –Ω–∞—à –∫–æ–¥.

–í –ø—Ä–∏–≤–µ–¥–µ–Ω–Ω–æ–º –≤—ã—à–µ –∫–æ–¥–µ –º—ã –∑–∞—è–≤–ª—è–µ–º, —á—Ç–æ —Ö–æ—Ç–∏–º, —á—Ç–æ–±—ã –Ω–∞—à ChildBankAccounts —Å–æ–¥–µ—Ä–∂–∞–ª —á–µ—Ç—ã—Ä–µ –∑–Ω–∞—á–µ–Ω–∏—è: –∏–º—è, —Ñ–∞–º–∏–ª–∏—è, –±–∞–ª–∞–Ω—Å –∏ –æ–≥—Ä–∞–Ω–∏—á–µ–Ω–Ω–æ—Å—Ç—å.

"–ö–∞—Ä—å–µ—Ä–Ω–∞—è –∫–∞—Ä–º–∞ –≤–æ—à–ª–∞ –≤ –º–æ—é –∂–∏–∑–Ω—å, –∫–æ–≥–¥–∞ —è –±–æ–ª—å—à–µ –≤—Å–µ–≥–æ –≤ –Ω–µ–π –Ω—É–∂–¥–∞–ª–∞—Å—å, –∏ –±—ã—Å—Ç—Ä–æ –ø–æ–º–æ–≥–ª–∞ –º–Ω–µ –ø—Ä–æ–π—Ç–∏ –∫—É—Ä—Å –æ–±—É—á–µ–Ω–∏—è. –ß–µ—Ä–µ–∑ –¥–≤–∞ –º–µ—Å—è—Ü–∞ –ø–æ—Å–ª–µ –æ–∫–æ–Ω—á–∞–Ω–∏—è —É—á–µ–±—ã —è –Ω–∞—à–µ–ª —Ä–∞–±–æ—Ç—É —Å–≤–æ–µ–π –º–µ—á—Ç—ã, –∫–æ—Ç–æ—Ä–∞—è —Å–æ–æ—Ç–≤–µ—Ç—Å—Ç–≤–æ–≤–∞–ª–∞ –º–æ–∏–º —Ü–µ–Ω–Ω–æ—Å—Ç—è–º –∏ —Ü–µ–ª—è–º –≤ life! "

–í–µ–Ω–µ—Ä–∞, –∏–Ω–∂–µ–Ω–µ—Ä-–ø—Ä–æ–≥—Ä–∞–º–º–∏—Å—Ç Rockbot

–ü–µ—Ä–≤—ã–µ —Ç—Ä–∏ & mdash; –∏–º—è, —Ñ–∞–º–∏–ª–∏—è –∏ –±–∞–ª–∞–Ω—Å & mdash; —Å–æ–≤–ø–∞–¥–∞—é—Ç —Å –Ω–∞—à–∏–º–∏ –∑–Ω–∞—á–µ–Ω–∏—è —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–≥–æ –∫–ª–∞—Å—Å–∞, –Ω–æ –æ–≥—Ä–∞–Ω–∏—á–µ–Ω—ã —è–≤–ª—è–µ—Ç—Å—è –Ω–æ–≤—ã–º –∏ —ç–∫—Å–∫–ª—é–∑–∏–≤–Ω—ã–º –¥–ª—è –Ω–∞—à–µ–≥–æ –¥–æ—á–µ—Ä–Ω–µ–≥–æ –∫–ª–∞—Å—Å–∞. –ü–æ —É–º–æ–ª—á–∞–Ω–∏—é –¥–ª—è limited —É—Å—Ç–∞–Ω–æ–≤–ª–µ–Ω–æ –∑–Ω–∞—á–µ–Ω–∏–µ True.

–ò—Ç–∞–∫, –µ—Å–ª–∏ –º—ã —Å–æ–∑–¥–∞–¥–∏–º —Å—Ç–∞–Ω–¥–∞—Ä—Ç–Ω—ã–π BankAccount (–∞ –Ω–µ ChildBankAccount), –º—ã –Ω–µ —Å–º–æ–∂–µ–º –ø–æ–ª—É—á–∏—Ç—å –¥–æ—Å—Ç—É–ø –∫ –∑–Ω–∞—á–µ–Ω–∏—é –æ–≥—Ä–∞–Ω–∏—á–µ–Ω–æ. –¢–æ—á–Ω–æ —Ç–∞–∫ –∂–µ –º—ã –Ω–µ —Å–º–æ–∂–µ–º –ø–æ–ª—É—á–∏—Ç—å –¥–æ—Å—Ç—É–ø –∫ –º–µ—Ç–æ–¥—É isRestricted, –µ—Å–ª–∏ –Ω–µ —Å–æ–∑–¥–∞–¥–∏–º ChildBankAccount.

–í–æ—Ç –ø—Ä–∏–º–µ—Ä —Ç–æ–≥–æ, –∫–∞–∫ –º—ã —Å–æ–∑–¥–∞–µ–º ChildBankAccount –∏ –∏—Å–ø–æ–ª—å–∑—É—è –º–µ—Ç–æ–¥—ã getBalance () –∏ isResticted (), —á—Ç–æ–±—ã —É–∑–Ω–∞—Ç—å –±–æ–ª—å—à–µ –æ –Ω–∞—à–µ–º –∫–ª–∞—Å—Å–µ:

–ù–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç —Å–ª–µ–¥—É—é—â–µ–µ:

–ö–∞–∫ –≤–∏–¥–∏—Ç–µ, –Ω–∞—à–∞ –ø—Ä–æ–≥—Ä–∞–º–º–∞ —Å–Ω–∞—á–∞–ª–∞ –æ–ø—Ä–µ–¥–µ–ª—è–µ—Ç –Ω–æ–≤—ã–π ChildBankAccount –¥–ª—è Bill Appleseed, —á—å—è —É—á–µ—Ç–Ω–∞—è –∑–∞–ø–∏—Å—å –≤–º–µ—â–∞–µ—Ç 100 –¥–æ–ª–ª–∞—Ä–æ–≤. –ó–∞—Ç–µ–º –Ω–∞—à–∞ –ø—Ä–æ–≥—Ä–∞–º–º–∞ –≤—ã–ø–æ–ª–Ω—è–µ—Ç –≤ –Ω–∞—à–µ–º –∫–ª–∞—Å—Å–µ –º–µ—Ç–æ–¥ getBalance (), –∫–æ—Ç–æ—Ä—ã–π –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –±–∞–ª–∞–Ω—Å –ø–æ–ª—å–∑–æ–≤–∞—Ç–µ–ª—è. getBalance () –æ–±—ä—è–≤–ª–µ–Ω –≤ –Ω–∞—à–µ–º —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–º –∫–ª–∞—Å—Å–µ BankAccount, –Ω–æ –¥–æ—Å—Ç—É–ø–µ–Ω –¥–ª—è ChildBankAccount —á–µ—Ä–µ–∑ –Ω–∞—Å–ª–µ–¥–æ–≤–∞–Ω–∏–µ .

–ù–∞—à–∞ –ø—Ä–æ–≥—Ä–∞–º–º–∞ —Ç–∞–∫–∂–µ –≤—ã–ø–æ–ª–Ω—è–µ—Ç –º–µ—Ç–æ–¥ isRestricted (), –≤ –∫–æ—Ç–æ—Ä–æ–º —É–∫–∞–∑–∞–Ω–æ, —á—Ç–æ —É—á–µ—Ç–Ω–∞—è –∑–∞–ø–∏—Å—å —Ä–µ–±–µ–Ω–∫–∞ –æ–≥—Ä–∞–Ω–∏—á–µ–Ω–∞, –ø–æ—Ç–æ–º—É —á—Ç–æ –µ–º—É –Ω–µ –∏—Å–ø–æ–ª–Ω–∏–ª–æ—Å—å 18 –ª–µ—Ç. –≠—Ç–æ—Ç –∫–ª–∞—Å—Å –æ–±—ä—è–≤–ª–µ–Ω –≤ ChildBankAccount, –∞ —ç—Ç–æ –æ–∑–Ω–∞—á–∞–µ—Ç, —á—Ç–æ –æ–Ω –Ω–µ–¥–æ—Å—Ç—É–ø–µ–Ω –¥–ª—è –Ω–∞—à–µ–≥–æ —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–≥–æ –∫–ª–∞—Å—Å–∞ BankAccount. –ï—Å–ª–∏ –º—ã —Ö–æ—Ç–∏–º —Å–æ–∑–¥–∞—Ç—å –æ–≥—Ä–∞–Ω–∏—á–µ–Ω–Ω—ã–π BankAccount, –Ω–∞–º –Ω—É–∂–Ω–æ –±—É–¥–µ—Ç –∏–∑–º–µ–Ω–∏—Ç—å —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏–π –∫–ª–∞—Å—Å.

–ü–µ—Ä–µ–æ–ø—Ä–µ–¥–µ–ª–µ–Ω–∏–µ —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏—Ö –º–µ—Ç–æ–¥–æ–≤

–í –Ω–∞—à–µ–º –ø—Ä–∏–º–µ—Ä–µ –≤—ã—à–µ –º—ã –æ–±—ä—è–≤–∏–ª–∏ —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏–π –∫–ª–∞—Å—Å —Å –∏–º–µ–Ω–µ–º BankAccount, –≤ –∫–æ—Ç–æ—Ä–æ–º —Ö—Ä–∞–Ω–∏—Ç—Å—è –∏–Ω—Ñ–æ—Ä–º–∞—Ü–∏—è –æ –±–∞–Ω–∫–æ–≤—Å–∫–∏—Ö —Å—á–µ—Ç–∞—Ö. –ú—ã —Ç–∞–∫–∂–µ —Å–æ–∑–¥–∞–ª–∏ –¥–æ—á–µ—Ä–Ω–∏–π –∫–ª–∞—Å—Å –ø–æ–¥ –Ω–∞–∑–≤–∞–Ω–∏–µ–º ChildBankAccount, –≤ –∫–æ—Ç–æ—Ä–æ–º —Ö—Ä–∞–Ω–∏—Ç—Å—è –∏–Ω—Ñ–æ—Ä–º–∞—Ü–∏—è –¥–ª—è –≤–ª–∞–¥–µ–ª—å—Ü–µ–≤ —Å—á–µ—Ç–æ–≤ –º–ª–∞–¥—à–µ 18 –ª–µ—Ç. –≠—Ç–æ—Ç –∫–ª–∞—Å—Å —É–Ω–∞—Å–ª–µ–¥–æ–≤–∞–ª –º–µ—Ç–æ–¥—ã –æ—Ç –∫–ª–∞—Å—Å–∞ BankAccount, –∞ —Ç–∞–∫–∂–µ —Å–æ–∑–¥–∞–ª isRestricted ().

–ù–æ —á—Ç–æ, –µ—Å–ª–∏ –º—ã —Ö–æ—Ç–∏–º –∏–∑–º–µ–Ω–∏—Ç—å —Å—É—â–µ—Å—Ç–≤—É—é—â–∏–π –º–µ—Ç–æ–¥ —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–≥–æ –∫–ª–∞—Å—Å–∞? –î–æ–ø—É—Å—Ç–∏–º, –º—ã —Ö–æ—Ç–∏–º, —á—Ç–æ–±—ã –Ω–∞—à –±–∞–ª–∞–Ω—Å BankAccount –≤–æ–∑–≤—Ä–∞—â–∞–ª —Å–æ–æ–±—â–µ–Ω–∏–µ —Å –∏—Ö –±–∞–ª–∞–Ω—Å–æ–º –∏ —Å–æ–æ–±—â–µ–Ω–∏–µ –æ —Ç–æ–º, —á—Ç–æ –í—ã –∏–º–µ–µ—Ç–µ –ø—Ä–∞–≤–æ –Ω–∞ –æ–≤–µ—Ä–¥—Ä–∞—Ñ—Ç, –Ω–æ –º—ã –Ω–µ —Ö–æ—Ç–∏–º, —á—Ç–æ–±—ã —ç—Ç–æ –æ—Ç–æ–±—Ä–∞–∂–∞–ª–æ—Å—å –¥–ª—è ChildBankAccount holders.

–î–ª—è —ç—Ç–æ–≥–æ –Ω–∞–º –Ω—É–∂–Ω–æ –ø–µ—Ä–µ–æ–ø—Ä–µ–¥–µ–ª–∏—Ç—å –Ω–∞—à —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏–π –º–µ—Ç–æ–¥.

–í–æ—Ç –∫–æ–¥ –¥–ª—è –Ω–∞—à–µ–≥–æ –∏–∑–º–µ–Ω–µ–Ω–Ω–æ–≥–æ —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–æ–≥–æ –º–µ—Ç–æ–¥–∞, BankAccount, –∫–æ—Ç–æ—Ä—ã–π —Ç–µ–ø–µ—Ä—å –≤—ã–≤–æ–¥–∏—Ç —Å–æ–æ–±—â–µ–Ω–∏–µ –¥–ª—è –≤–ª–∞–¥–µ–ª—å—Ü–µ–≤ —Å—á–µ—Ç–æ–≤ –æ —Ç–æ–º, —á—Ç–æ –æ–Ω–∏ –∏–º–µ—é—Ç –ø—Ä–∞–≤–æ –Ω–∞ –æ–≤–µ—Ä–¥—Ä–∞—Ñ—Ç –ø—Ä–∏ –ø—Ä–æ–≤–µ—Ä–∫–µ —Å–≤–æ–µ–≥–æ –±–∞–ª–∞–Ω—Å–∞:

–¢–µ–ø–µ—Ä—å, –µ—Å–ª–∏ –º—ã —Å–æ–∑–¥–∞–¥–∏–º –Ω–æ–≤—ã–π BankAccount –¥–ª—è John Appleseed –∏ —Ä–∞—Å–ø–µ—á–∞—Ç–∞–π—Ç–µ –µ–≥–æ –±–∞–ª–∞–Ω—Å, –º—ã —É–≤–∏–¥–∏–º —Å–æ–æ–±—â–µ–Ω–∏–µ –æ —Ç–æ–º, —á—Ç–æ –≤—ã –∏–º–µ–µ—Ç–µ –ø—Ä–∞–≤–æ –Ω–∞ –æ–≤–µ—Ä–¥—Ä–∞—Ñ—Ç. –í–æ—Ç –ø—Ä–∏–º–µ—Ä —Ç–æ–≥–æ, –∫–∞–∫ –º—ã –æ–±—ä—è–≤–ª—è–µ–º –Ω–æ–≤—É—é —É—á–µ—Ç–Ω—É—é –∑–∞–ø–∏—Å—å –∏ –ø—Ä–æ–≤–µ—Ä—è–µ–º –µ–µ –±–∞–ª–∞–Ω—Å:

–ù–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç —Å–ª–µ–¥—É—é—â–µ–µ:

–ù–æ —ç—Ç–æ –∏–∑–º–µ–Ω–µ–Ω–∏–µ —Ç–∞–∫–∂–µ –æ–∑–Ω–∞—á–∞–µ—Ç, —á—Ç–æ –Ω–∞—à ChildBankAccount, –∫–æ—Ç–æ—Ä—ã–π –Ω–∞—Å–ª–µ–¥—É–µ—Ç —Å–≤–æ–∏ –∑–Ω–∞—á–µ–Ω–∏—è –æ—Ç BankAccount, —Ç–∞–∫–∂–µ —É–≤–∏–¥–∏—Ç —Å–æ–æ–±—â–µ–Ω–∏–µ. –í–æ—Ç –ø—Ä–∏–º–µ—Ä —Ç–æ–≥–æ, –∫–∞–∫ –º—ã —Å–æ–∑–¥–∞–µ–º ChildBankAccount –∏ –ø—Ä–æ–≤–µ—Ä—è–µ–º –µ–≥–æ –±–∞–ª–∞–Ω—Å —Ç–µ–ø–µ—Ä—å, –∫–æ–≥–¥–∞ –Ω–∞—à —Ä–æ–¥–∏—Ç–µ–ª—å—Å–∫–∏–π –∫–ª–∞—Å—Å BankAccount –∏–∑–º–µ–Ω–∏–ª—Å—è:

–ù–∞—à –∫–æ–¥ –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç:

< p> –ü–æ—Å–∫–æ–ª—å–∫—É –¥–µ—Ç—è–º –æ–±—ã—á–Ω–æ –Ω–µ —Ä–∞–∑—Ä–µ—à–∞–µ—Ç—Å—è –æ–≤–µ—Ä–¥—Ä–∞—Ñ—Ç, –Ω–∞–º –Ω—É–∂–Ω–æ –±—É–¥–µ—Ç –≤–Ω–µ—Å—Ç–∏ –∏–∑–º–µ–Ω–µ–Ω–∏—è –≤ –Ω–∞—à –∫–æ–¥. –¢–µ–ø–µ—Ä—å –¥–ª—è —ç—Ç–æ–≥–æ –Ω–∞–º –Ω—É–∂–Ω–æ –∏–∑–º–µ–Ω–∏—Ç—å –Ω–∞—à –∫–ª–∞—Å—Å ChildBankAccount –∏ –æ–±—ä—è–≤–∏—Ç—å –Ω–æ–≤—É—é —Ñ—É–Ω–∫—Ü–∏—é getBalance ().