Anenumtype is a special data type that enables for a variable to be a set of predefined constants. A variable that has been declared as having an enumerated type can be assigned any of the enumerators as a value
ExecuteMethodEnum.FIRST); } } //分片时间路由规则按月然后bean分片属性就是LocalDateTime也可以自定义实现 public class TopicShardingTimeTableRoute extends AbstractMonthTableRoute<TopicShardingTime> { @Override protected LocalDateTime convertLocalDateTime(Object shardingValue) { return (LocalDateTime)shardingValue; ...
的驱动列表来实例化具体实现类for (String aDriver : driversList) {try {println("DriverManager.Initialize: loading " + aDriver);Class.forName(aDriver, true, ClassLoader.getSystemClassLoader());} catch (Exception ex) {println("DriverManager.Initialize: load failed: " + ex);}}}driversInitialized ...
ENUM1, ENUM2, ... ;privateintfield ...;privateName(...) {...} } 各种enum都是Enum的子类,enum中的类型的toString会返回这种类型的名字,Enum.valueOf会将对应名字的类型返回来。 名字与enum的转换 Name.ENUM1.toString();//"ENUM1"Enum.valueOf(Name.class, "ENUM2");//enum with type ENUM2 N...
In the client/server model of communications, the client is a process that remotely accesses resources of a compute server, such as compute power and large memory capacity. codebase Works together with the code attribute in the <APPLET> tag to give a complete specification of where to find th...
(); } giveMePet(new Dog()); } public static void giveMePet(Animal animal){ if (animal instanceof Dog){ Dog dog=(Dog) animal; dog.watchHouse(); } if (animal instanceof Cat){ Cat cat=(Cat) animal; cat.catchMouse(); } } } 13.6 笔记本USB接口案例 public interface USB {//...
public static void giveScore(Score s){ switch(s){ case EXCELLENT: System.out.println("Excellent"); break; case QUALIFIED: System.out.println("Qualified"); break; case FAILED: System.out.println("Failed"); break; } } 枚举类的特点: 1.枚举类实际上是定义了一个类,隐含继承java.lang.Enum,...
* <li>The hash code of a string, enum, class, or annotation member-value I <tt><i>v</i></tt> is computed as by calling * <tt><i>v</i>.hashCode()</tt>. (In the case of annotation * member values, this is a recursive definition.) ...
When a double must be used as a source for a BigDecimal, note that this constructor provides an exact conversion; it does not give the same result as converting the double to a String using the Double.toString(double) method and then using the BigDecimal(String) constructor. To get that re...
isEnum false isAnonymousClass false isArray false isLocalClass false isMemberClass false isPrimitive false isSynthetic false simple-name XmlWebApplicationContext modifier public annotation interfaces super-class +-org.springframework.web.context.support.AbstractRefreshableWebApplicationContext +-org.spring...