Create 'Java' Objects and Execute 'Java' Methods

Documentation for package ‘J4R’ version 1.0.7

addUrlToClassPath	Dynamically adds an url to the classpath.
bufferLength	Length of the buffer when reading from the socket connection.
cacheEnv	The cache environment of this package
callJavaGC	Synchronize the Java environment with the R environment
callJavaMethod	Call a Java method
checkIfClasspathContains	Check if a Library has been loaded
connectToJava	Connect to Java environment
createJavaObject	Create Java objects
getAllValuesFromArray	Returns all the elements of an array
getAllValuesFromListObject	Returns all the elements of a Java instance of List
getArrayLength	Return the length of an Array instance
getClassLoaderURLs	Retrieve the URLs of the current classloader
getJavaArchitecture	Get Java architecture
getJavaField	Get the value of a public field
getJavaVersion	Get the current Java version
getListOfJavaReferences	Provide a list of the Java references
getMemorySettings	Returns the maximum, total and free memory in Mb
getValueFromArray	Get a value from an array
isArray	Check if the java.object instance represents an Array
isConnectedToJava	Checks if the Java server is running
maxVectorLength	Maximum length of the vector in the parameters.
setJavaField	Set the value of a public field
setJavaPath	Set the path to Java
setValueInArray	Set a value in an array
shutdownJava	Shut down Java