java get runtime class

Http://liuwangshu.cn/java/jvm/1-runtime-data-area.htmlPrefaceOriginally planned to write Android memory optimization, I think it is necessary to introduce the knowledge of Java Virtual machine, Java Virtual machine is not few words can be introduced,

The ClassLoader (class loader) is a very important concept in java™. The ClassLoader is responsible for loading the Java class's byte code into the Java virtual machine. In this paper, the basic concepts of Java ClassLoader are introduced in detail,

1.System class and runtime class 1.1System classThe system class is not unfamiliar to us, and in the previously learned knowledge, when we need to print the results, we use the "System.out.println ()" Statement to print out the code, which uses the

The runtime class represents the runtime environment of a Java program, each Java program has a corresponding runtime instance, which is connected to the runtime environment by the application, and the application cannot create its own runtime

Runtime is a class that encapsulates a JVM process, and each Java program actually initiates a JVM process, and each JVM corresponds to a runtime instance. This instance is instantiated by the JVM.　　There is no construction method in the definition

Package ioTest. io1;/** Runtime: each Java application has a Runtime class instance, so that the application can be connected to the running environment. * This is also an important reason for jvm to implement cross-platform. * You can use the

Common Api-runtime, runable, System classesFirst, the runtime class1. Overview: Runtime classencapsulates the running process of the Java command itselfThat every Java application has a runtime class object that allows it to interact with the

Prior to Java 2, the runtime security model used a very tightly constrained sandbox model (sandbox). Readers should be familiar with the Java untrusted Applet code that provides runtime security checks based on this tightly restricted sandbox model.

Class loading is one of the most powerful mechanisms provided by the Java language. Although class loading is not a hot topic, all programmers should understand its working mechanism and understand how to make it meet our needs. This effectively

Java object-oriented -- class loaders and reflection, java object-oriented -- LoadingThe relationship between jvm and class in the Class Loader When you call a java command to run a java program, a java virtual machine process is started. All