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Old 02-20-2017, 03:45 AM   #1
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What is observer design pattern in Java

What is observer design pattern in Java
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Old 03-07-2017, 02:24 AM   #2
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Observer pattern is used when there is one-to-many relationship between objects such as if one object is modified, its depenedent objects are to be notified automatically. Observer pattern falls under behavioral pattern category.

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Old 05-22-2017, 03:53 AM   #3
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The observer pattern defines a one-to-many dependency between objects so that when one object changes state, all of its dependents are notified and updated automatically.
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Old 05-22-2017, 04:34 AM   #4
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Thanks. Bài viết của bạn rất hay UP TOP cho bạn
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Old 06-02-2017, 03:57 AM   #5
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The observer pattern is a software design pattern in which an object, called the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods.
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