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Jainja is a JVM (Java Virtual Machine) written in Java
Jainja is a JVM (Java Virtual Machine) written in Java.
The VM is developed by using the smallest possible subset of Java in order to run on top of multiple environments : Java SE, JavaME, Android, Javascript, and even natively.
...By words from LightBot: "Get kids hooked on coding with minutes!"
Created by Karel 3D from the 8-bit microcomputer PMD 85-2 in 1986. His later version of Karel the Robot in 3D, created first in the Slovak Republic.
JavaScript variant include only one small HTML file tested and works on all devices with keyboard and full JavaScript support in internet browser, or alternative pre-compiled JAVA V8 .jar file with webEngine and JavaFX and code in string.
ZIP Contains examples in TXT file.
More pictures and examples is here at Wiki. Wiki include ZIP with scan of original historical manuals in Slovak language from years 1987 - 1990
Today exist some variants (not mine) like: LightBot or Swift Playgrounds on tablets. ...
OpenJX is a Java XML form language similiar to Flex. In a few simple lines of XML and Javascript, a developer can create a fully featured Java application or applet. OpenJX also features a network based plugin system which is extremely powerful.
A JavaScript interpreter written in PHP 5, that allows to run untrusted scripts in a sandbox on your server. It aims to implement most of Ecma-262 3d edition.