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新建函数接口 Operation @FunctionalInterface public interface Operation<R, T> { R operator (T t1, T t2); } 在测试类中实现 public class TestDemo { @Test public void 阅读全文
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结构图 Subject public interface Subject { void request(); } RealSubject public class RealSubject implements Subject{ @Override public void request() { Sy 阅读全文
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结构图 Srategy abstract class Strategy { public abstract void AlgorithmInterface(); } ConcreteStrategyA public class ConcreteStrategyA extends Strategy{ 阅读全文
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public class DeadLockDemo { private static final Object HAIR_A = new Object(); private static final Object HAIR_B = new Object(); public static void m 阅读全文