--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nashorn/samples/javashell.js	Wed May 07 20:20:58 2014 +0530
@@ -0,0 +1,146 @@
+#// Usage: jjs -scripting javashell.js
+
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// Simple Java "shell" with which you can try out
+// your few liner Java code leaving imports, main etc.
+// And you can leave even compilation as this script
+// takes care boilerplate+compile step for you.
+
+// Java types used
+var Arrays = Java.type("java.util.Arrays");
+var BufferedReader = Java.type("java.io.BufferedReader");
+var FileWriter = Java.type("java.io.FileWriter");
+var LocalDateTime = Java.type("java.time.LocalDateTime");
+var InputStreamReader = Java.type("java.io.InputStreamReader");
+var PrintWriter = Java.type("java.io.PrintWriter");
+var ProcessBuilder = Java.type("java.lang.ProcessBuilder");
+var System = Java.type("java.lang.System");
+
+// read multiple lines of input from stdin till user
+// enters an empty line
+function input(endMarker, prompt) {
+    if (!endMarker) {
+        endMarker = "";
+    }
+
+    if (!prompt) {
+        prompt = " >> ";
+    }
+
+    var str = "";
+    var reader = new BufferedReader(new InputStreamReader(System.in));
+    var line;
+    while (true) {
+        System.out.print(prompt);
+        line = reader.readLine();
+        if (line == null || line == endMarker) {
+            break;
+        }
+        str += line + "\n";
+    }
+    return str;
+}
+
+// write the string to the given file
+function writeTo(file, str) {
+    var w = new PrintWriter(new FileWriter(file));
+    try {
+        w.print(str);
+    } finally {
+        w.close();
+    }
+}
+
+// generate Java code with user's input
+// put inside generated main method
+function generate(className) {
+    var usercode = input();
+    if (usercode == "") {
+        return false;
+    }
+
+    var fullcode = <<EOF
+// userful imports, add more here if you want
+// more imports.
+import static java.lang.System.*;
+import java.io.*;
+import java.net.*;
+import java.math.*;
+import java.nio.file.*;
+import java.time.*;
+import java.time.chrono.*;
+import java.time.format.*;
+import java.time.temporal.*;
+import java.time.zone.*;
+import java.util.*;
+import java.util.concurrent.*;
+import java.util.function.*;
+import java.util.stream.*;
+
+public class ${className} {
+   public static void main(String[] args) throws Exception {
+       ${usercode}
+   }
+}
+EOF
+
+    writeTo("${className}.java", fullcode);
+    return true;
+}
+
+// execute code command
+function exec(args) {
+    // build child process and start it!
+    new ProcessBuilder(Arrays.asList(args.split(' ')))
+         .inheritIO()
+         .start()
+         .waitFor();
+}
+
+// generate unique name
+function uniqueName() {
+    var now = LocalDateTime.now().toString();
+    // replace unsafe chars with '_' 
+    return "JavaShell" + now.replace(/-|:|\./g, '_');
+}
+
+// read-compile-run loop
+while(true) {
+    var className = uniqueName();
+    if (generate(className)) {
+        exec("javac ${className}.java");
+        exec("java ${className}");
+    } else {
+        break;
+    }
+}