One example of inner interface used in java standard library is java.util.Map and Java.util.Map.Entry. Here java.util.Map is used also as a namespace. Entry does not belong to the global scope, which means there are many other entities that are Entries and are not necessary Map's entr...
By default a Connection object is in auto-commit mode, which means that it automatically commits changes after executing each statement. If auto-commit mode has been disabled, the method commit must be called explicitly in order to commit changes; otherwise, database changes will not be saved....
In addition,Runnableprovides the means for a class to be active while not subclassingThread. A class that implementsRunnablecan run without subclassingThreadby instantiating aThreadinstance and passing itself in as the target. In most cases, theRunnableinterface should be used if you are only planni...
// Needs to be in sync with ../cmd/link/internal/ld/decodesym.go:/^func.commonsize,// ../cmd/compile/internal/gc/reflect.go:/^func.dcommontype and// ../reflect/type.go:/^type.rtype.// ../internal/reflectlite/type.go:/^type.rtype.type _type struct{// 类型占用的内存大小size ...
“The tag/ marker interface pattern is a design pattern in computer science, used with languages that provide run-time type information about objects. It provides a means to associate metadata with a class where the language does not have explicit support for such metadata.“ Java Serialization ...
the native code as COM objects, the JNI interface itself is binary-compatible with COM. JNI uses the same jump table structure and calling convention that COM does.This means that, as soon as cross-platform support for COM is available, the JNI can become a COM interface to the Java VM....
The queryTimeout limit is the number of seconds the driver will wait for a Statement to execute. If the limit is exceeded, a SQLException is thrown. Returns: the current query timeout limit in seconds; zero means unlimited setQueryTimeout ...
The Java APIs provide classes and interfaces for you to use. An interface defines a set of methods, but does not implement them. The rest of theSwingUIclass declaration indicates that this class will implement theActionListenerinterface. This means theSwingUIclass must implement all methods define...
When a Driver class is loaded, it should create an instance of itself and register it with the DriverManager. This means that a user can load and register a driver by calling text/java Class.forName("foo.bah.Driver") Java documentation...
Within a pattern String, "%" means match any substring of 0 or more characters, and "_" means match any one character. Only metadata entries matching the search pattern are returned. If a search pattern argument is set to null, that argument's criterion will be dropped from the search....