publicclassleijun {publicstaticvoidmain(String[] args) { System.out.println(xiaomi.i); xiaomi.i=2;//此处为报错,因为i为final} }interfacexiaomi{inti = 1; } 总结:interface里的属性,默认均是public static final。
public:接口可以被其他接口继承,也可以被类实现,类与接口、接口与接口可能会形成多层级关系,采用public可以满足变量的访问范围; static:如果变量不是static的,那么接口必须实例化才可以访问自己的变量,接口不能被实例化,故非static的变量是无效的; final:如果变量不是final的,而方法是abstract的,因此接口中的方法又不...
哪个关键字用来定义一个抽象类? A. final B. static C. interface D. abstract 相关知识点: 试题来源: 解析 D。 答案:D。 解释: abstract用来修饰一个抽象类。final表示某个变量,方法,类不可以改变。static修饰静态成员或函数。interface用来定义接口。反馈 收藏 ...
public static ProcessExecutionMessageLogContract newForSourceRecord(ProcessScheduleTypeName _typeName, RefTableId _refTableId, RefRecId _refRecId, guid _executionId = emptyGuid())This method initializes the contract by using the specified type name,RefTableIdvalue, andRefRecIdvalue. There should be ...
the declaration is a variable arity method that is neither static nor final nor private. Compilers are encouraged to issue warnings when this annotation type is applied to a method or constructor declaration where: The variable arity parameter has a reifiable element type, which includes pri...
The result must exist in static data space because its value is accessed after the actual procedure has exited. The RPC library function that builds the RPC reply message accesses the result and sends the value back to the client. Only a single argument is allowed. If there are multiple elem...
public static interface SqlDatabase.DefinitionStages.WithAuthenticationAfterElasticPool Sets the authentication type and SQL or Active Directory administrator login and password. Method Summary 展開資料表 Modifier and TypeMethod and Description abstrac...
3. If either device has multiple Gigabit ports, connect the ports to each other. This tests each device and verifies that the Gigabit interface functions correctly. For example, you have a switch that has two Gigabit ports. Wire Gigabit port one to Gigabit port two. Does the link come up...
A nonvolatile function is recalculated only when the input variables change. This method has no effect if it's not inside a user-defined function used to calculate a worksheet cell. (Inherited from _Application) Wait(Object) Pauses a running macro until a specified time. Returns True if ...
static final intEVAL_BODY_TAG Deprecated.As of Java JSP API 1.2, use BodyTag.EVAL_BODY_BUFFERED or IterationTag.EVAL_BODY_AGAIN. Deprecated constant that has the same value as EVAL_BODY_BUFFERED and EVAL_BODY_AGAIN. This name has been marked as deprecated to encourage the use of the two...