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// JavaImporter constructor accepts one or more Java Package objects
var imports = new JavaImporter(java.util, java.io);

// a JavaImporter can be used as a "with" expression object
with(imports) {
    // classes from java.util and java.io packages can 
    // can be accessed by unqualified names

    var map = new HashMap(); // refers to java.util.HashMap
    map.put("js", "javascript");
    map.put("java", "java");
    map.put("cpp", "c++");
    print(map);

    var f = new File("."); // refers to java.io.File
    print(f.getAbsolutePath());
}

$ARG (-scripting mode only)

This global object can be used to access the arguments passed to the script, similar to how the arguments object is used, for example:

>> jjs -scripting -- arg1 arg2 arg3
jjs> $ARG
arg1,arg2,arg3
jjs> $ARG[1]
arg2

$OPTIONS (-scripting mode only)

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// print $JAVA_HOME and $PATH from the OS shell

print($ENV["JAVA_HOME"])
print($ENV["PATH"])
print($ENV.JAVA_HOME)
print($ENV.PATH)

readLine (-scripting mode only)

This function reads one line of input from stdin and sends it to stdout, or you can assign the result to a variable. You can also pass a string to the readLine() function to get a prompt line as in the following example:

jjs> var name = readLine("What is your name? ")
What is your name? Bob
jjs> print("Hello, ${name}!")
Hello, Bob!
jjs> 

readFully (-scripting mode only)

This function reads the entire contents of a file passed in as a string argument and sends it to stdout, or you can assign the result to a variable.

jjs> readFully("text.txt")
This is the contents of the text.txt file located in the current working directory.

Java object

"Java" global property is a script object that defines useful functions for script-to-Java interface.

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