--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/sample/nashorn/barchart_weather.js	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,116 @@
+#// Usage: jjs -fx barchart_weather.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.
+ */
+
+// Example that retrieves weather data from a URL in JSON
+// format and draws bar chart using JavaFX
+
+// -fx check
+if (! $OPTIONS._fx) {
+    print("Usage: jjs -fx barchart_weather.js");
+    exit(1);
+}
+
+// Java classes used
+var URL = Java.type("java.net.URL");
+var BufferedReader = Java.type("java.io.BufferedReader");
+var InputStreamReader = Java.type("java.io.InputStreamReader");
+
+// function to retrieve text content of the given URL
+function readTextFromURL(url) {
+    var str = '';
+    var u = new URL(url);
+    var reader = new BufferedReader(
+        new InputStreamReader(u.openStream()));
+    try {
+        reader.lines().forEach(function(x) str += x);
+        return str;
+    } finally {
+        reader.close();
+    }
+}
+
+// change URL for your city here!
+var url = "http://api.openweathermap.org/data/2.5/forecast?q=chennai,india&units=metric&mode=json&appid=9b2982987c080ae88d81f081dcb129e8";
+
+// download JSON document and parse
+var json = readTextFromURL(url);
+var weather = JSON.parse(json);
+
+// View JSON of this using site such as http://www.jsoneditoronline.org/ to know
+// about the JSON data format used by this site
+
+// Extracted data from the json object
+var temp = weather.list.map(function(x) x.main.temp);
+var temp_min = weather.list.map(function(x) x.main.temp_min);
+var temp_max = weather.list.map(function(x) x.main.temp_max);
+var date = weather.list.map(function(x) x.dt_txt);
+
+// JavaFX classes used
+var Scene = Java.type("javafx.scene.Scene");
+var BarChart = Java.type("javafx.scene.chart.BarChart");
+var CategoryAxis = Java.type("javafx.scene.chart.CategoryAxis");
+var NumberAxis = Java.type("javafx.scene.chart.NumberAxis");
+var XYChart = Java.type("javafx.scene.chart.XYChart");
+
+function start(stage) {
+    stage.title="Chennai Weather Bar Chart";
+    var xAxis = new CategoryAxis();
+    xAxis.label = "date/time";
+    var yAxis = new NumberAxis();
+    yAxis.label = "temp in C";
+    var bc = new BarChart(xAxis, yAxis);
+
+    // 3 bars per datetime item - temp, min temp and max temp
+    var s1 = new XYChart.Series();
+    s1.name = "temp";
+    for (d in date) {
+        s1.data.add(new XYChart.Data(date[d], temp[d]));
+    }
+
+    var s2 = new XYChart.Series();
+    s2.name = "min temp";
+    for (d in date) {
+        s2.data.add(new XYChart.Data(date[d], temp_min[d]));
+    }
+
+    var s3 = new XYChart.Series();
+    s3.name = "max temp";
+    for (d in date) {
+        s3.data.add(new XYChart.Data(date[d], temp_max[d]));
+    }
+
+    bc.data.addAll(s1, s2, s3);
+
+    stage.scene = new Scene(bc, 800, 600);
+    stage.show();
+}