1packageInPackage;23/**4* System.in.read()返回值为输入数值的ASCII码,该值为0到 255范围内的int字节值5* 如果因为已经到达流末尾而没有可用的字节,则返回值 -1。6*/7publicclassIntest1 {8publicstaticvoidmain(String args[])throwsjava.io.IOException9{10inta=0;11System.out.println("请输入a:");...
packagetest;importjava.io.IOException;importjava.util.Arrays;/** 编程尝试System.in的用法 System.in返回的是InputStream指向命令行输入的字节流, 它的read方法以字节流的方式来读取命令行的输入的数据。*/publicclassSystemModel {publicstaticvoidmain(String[] args)throwsIOException {//以字节的方式读取输入的第...
publicstaticvoidexit(int status)Terminates the currently running Java Virtual Machine.The argument servesasa status code;by convention,a nonzero status code indicates abnormal termination.This method calls the exit methodinclassRuntime.This method never returns normally.The call System.exit(n)is effectiv...
Packagejava.lang Class System java.lang.Object java.lang.System public final classSystemextendsObject TheSystemclass contains several useful class fields and methods. It cannot be instantiated. Among the facilities provided by theSystemclass are standard input, standard output, and error output streams...
新建frameworks/base/core/java/android/hardware/wuxiaolong/IWuXiaolongManager.aidl,内容如下: 123456 package android.hardware.wuxiaolong;/** @hide */interface IWuXiaolongManager { String getName();} 2.Context 定义变量 在Context 里定义一个代表 wuxiaolong 服务的字符串 frameworks/base/core/java/androi...
In NIO.2, the file system API is contained in a new package,java.nio.file, with two subpackages. Thejava.nio.file.attributesubpackage supports bulk access to file attributes, and the service provider interface (SPI) subpackagejava.nio.file.spi, an interface for pluggable file system implement...
hadbm registerpackage test --packagepath=/var/install1 --hosts europa11 Package successfully registered. hadbm registerpackage test --packagepath=/var/install2 --hosts europa12 hadbm:Error 22171: A software package has already been registered with the package name test....
The enum ElementType has the possible values TYPE, FIELD, METHOD, PARAMETER, CONSTRUCTOR, LOCAL_VARIABLE, ANNOTATION_TYPE, PACKAGE, TYPE_PARAMETER, and TYPE_USE, and annotations can indicate that they intend to be used at one or more of these locations. The other meta-annotation is @Retention...
Usually, if there is a "manager" (e.g., PackageManager) for apps to use, there should be a "service" (e.g., PackageManagerService) in the system server process. We can simply think if the app holds the binder of the "service", it can communicate with the "service". The app pro...
(mZygotePreload, "Zygote preload");mZygotePreload = null;mWebViewUpdateService.prepareWebViewInSystemServer();traceLog.traceEnd();}, WEBVIEW_PREPARATION);}if (mPackageManager.hasSystemFeature(PackageManager.FEATURE_AUTOMOTIVE)) {traceBeginAndSlog("StartCarServiceHelperService");mSystemServiceManager....