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JDK Source Code Reading-4-Design pattern-Behavioral pattern

Shulou Source: shulou.com Published: 2022-06-01 08:17:47 10月02日 Update

1. Chain of responsibilities Model (Chain of responisibility)

Java.util.logging.Logger#log ()

Javax.servlet.Filter#doFilter ()

two。 Command mode (Command)

Java.lang.Runnable

Java.util.concurrent.Callable

3. Interpreter mode (Interpreter)

Java.text.Format

4. Iterator mode (Iterator)

Java.util.Iterator

Java.util.Enumeration

5. Observer mode (Observer)

Java.util.Observer/java.util.Observable (rarely used in real world though)

6. Policy Mode (Strategy)

Java.util.Comparator#compare (), Collections#sort ().

7. Template mode (Template Method)

Javax.servlet.http.HttpServlet, doXXX () in