Longevity: 4 years 1 month
Title: Java Runtime Environment 9 Build 120 Early Access
Developer: Oracle Corporation
Version: 9 Build 120
Interface language: English
Pill: Not required
Java is an executive environment created by Sun Microsystems that allows you to run and use applications written in the Java programming language. It consists of a virtual machine - Java Virtual Machine and a library of Java classes. There are many programs and games written in Java, especially those for which mobility is important. Some web pages also use Java. One of the advantages of the Java language is its cross-platform nature, that is, applications written in this language can be used on different operating systems where the Java Runtime Environment is installed.
automatic memory management;
advanced exception handling capabilities;
a rich set of input/output filtering tools;
a set of standard collections, such as an array, a list, a stack, etc.;
the presence of simple tools for creating network applications (including using the RMI protocol);
the presence of classes that allow you to make HTTP requests and process responses;
built-in language tools for creating multithreaded applications;
unified access to databases:
at the level of individual SQL queries - based on JDBC, SQLJ;
at the level of the concept of objects that have the ability to be stored in a database - based on Java Data Objects (English) and Java Persistence API (English);
template support (since version 1.5);
parallel execution of programs.
What is the difference between JRE and JDK:
JRE briefly - for work. Java Runtime Environment (JRE) is the minimal implementation of a virtual machine required to execute Java applications, without a compiler and other development tools. It consists of a virtual machine - Java Virtual Machine and a library of Java classes.
JDK in short - for programming. Java Development Kit (abbreviated JDK) is a Java application development kit distributed for free by Oracle Corporation (formerly Sun Microsystems), which includes the Java compiler (javac), standard Java class libraries, examples, documentation, various utilities and the Java Executive System (JRE)
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