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What is J2Se runtime?

Updated: 12/15/2022
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The J2SE Runtime Environment is a platform that enables quick development and execution of Java applications. It was developed by Sun Microsystems.

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What is j2ee j2se j2me?

J2EE = enterprise edition jdk. J2SE = standard edition jdk. J2ME = mobile edition jdk. standard jdk gets used for platform development, enterprise jdk for enterprise development and mobile jdk gets used for mobile development.


How can you force the garbage collector to run?

You can't force it but you call System.gc(), which is a "hint" to the runtime engine that now might be a good time to run the GC. But garbage collection using this method is not guaranteed to be done immediately. there is another way to explicitly call the gc(). this method is also define in Runtime class of package java.lang. But u can not create a direct object of class Runtime like Runtime a = new Runtime(); //wrong For that u have to call the method getRuntime() which is static and it is also define in Runtime class the way to create object is Runtime run; //right run = Runtime.getRuntime(); //right now u can call the gc() through the "run " Object. like run.gc(); //right


Addition of methods into object at runtime?

Of course not.


What does Microsoft Visual C plus plus Runtime Library mean?

The runtime library is a collection of routines that implements basic functionality of the platform. Routines such as I/O, memory control, startup, shutdown, common system functions, etc. are located in the runtime library.


Why run time polymorphism is dynamic and compile time polymorphism is static?

The simple answer is that compile-time polymorphism occurs at compile time while runtime polymorphism occurs at runtime. The actual answer is that compile-time polymorphism results in the compiler generating source code on your behalf while runtime polymorphism relies on function pointers or virtual methods to determine the next instruction at runtime. Compile-time polymorphism therefore applies to template functions and classes since that is the only way the compiler can generate source code on your behalf. To achieve this, the runtime type for the template parameters must be fully-defined at compile time, even if those types have runtime polymorphic characteristics of their own. Runtime polymorphism applies to virtual methods and function pointers, both of which can be used to dynamically alter the execution path of your program. Virtual methods are made possible through virtual tables, which are essentially just arrays of function pointers. Each runtime type that derives from a base class with virtual methods provides its own virtual table, thus the runtime type determines which specific function overrides will be invoked at runtime, even if the runtime type cannot be determined at compile time. In this way you can generalise your code to work with the base type but still get the expected polymorphic behaviour whenever a derived type is passed instead.

Related questions

Is there any difference between java and j2SE?

Core Java and J2SE are the same thing, which is the set of classes to be found in the rt.jar package. The classes were just given different names at different stages of the continued revisions to the Java Runtime Environment.


What does J2SE mean when talking about computers?

J2SE means Java 2 Platform Standard Edition when you are referring to computers and the hardware that is found on the computer. It is needed for everyday computer use.


What is the meaning of J2SE version 1.6.0 or 1.6-07-0 21 updates?

J2SE is Java 2 Standard Edition. The current version is 1.6 update 21. (See links below)


Where you can download J2SE 1.3 I have downloaded from the site of Sun but not working. What could be the problem where I can download the same?

The Sun download of the J2SE 1.3 may not be compatible with the electronic device in which you are downloading it too. There are plenty of available sources for this download.


Is j2ee servlet development kit useful for developing servlets in j2se?

J2SE stands for Java 2 Standard Edition and I dont think Servlets are a part of it. Servlets are only part of the Java 2 Enterprise Edition.


What are some J2SE APIs?

The Java web site (java.sun.com) has the APIs. See the related link.


When runtime error occurs?

At runtime.At runtime.At runtime.At runtime.


J2me apis and j2se apis?

You can find the Java APIs at Sun's website. See related links.


When was Moonlight - runtime - created?

Moonlight - runtime - was created on 2009-03-04.


What is j2ee j2se j2me?

J2EE = enterprise edition jdk. J2SE = standard edition jdk. J2ME = mobile edition jdk. standard jdk gets used for platform development, enterprise jdk for enterprise development and mobile jdk gets used for mobile development.


If you make a exe in vbnet can you run it on a system not having net framework like vb6 programs?

No, any program targeting the .Net runtime will require that version of the runtime that it was compiled against. Note that having the 3.0 runtime does not mean an application with the 1.1 runtime will work; it must be the same runtime compiled.


What are the parts of java programming language?

There are three Parts of Java. 1) J2SE 2) J2EE 3) J2ME