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Applet code in JAva for HTML in IE

Asked by duncanb7

at 2024-06-09 16:30:13

Point:500 Replies:16 POST_ID:828331USER_ID:11059

Topic:

Java Programming Language;;

The follow "simplearea.java code is passed javac and java at commandline check.
But it doesn't work on HTML webpage in IE and Appletviewer.
Probably is related to public stat void main { using in samplearea.java code.
But when I change it to public void int() { that could not pass Javac.
What is problem there ? Please advise for display chart output result onHTML /IE

=================================================
My HTML of char-demo.html

HTML>
<HEAD>
<TITLE>A Simplearea (1.6)</TITLE>
</HEAD>
<BODY>
<h1>A Simplearea (1.6)</h1>
<hr>
<applet code="simplearea.class" archive="ChartDirector_s.jar" width=170 height=150>
alt="Your browser understands the <APPLET> tag but isn't running the applet, for some reason."
Your browser is completely ignoring the <APPLET> tag!
</applet>

</BODY>
</HTML

//Orginal simplearea.java code with modificaton for Applet.import java.awt.*;import java.awt.event.*;import javax.swing.*;import ChartDirector.*;import java.applet.*;import java.io.*;import java.util.*;import javax.swing.event.*;import javax.swing.border.*;import javax.swing.JButton;import javax.swing.JComponent;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextArea;import javax.swing.SwingUtilities;import java.awt.BorderLayout;import java.awt.Font;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyEvent;public class simplearea extends Applet implements DemoModule{    //Name of demo program    public String toString() { return "Simple Area Chart"; }    //Number of charts produced in this demo    public int getNoOfCharts() { return 1; }    //Main code for creating charts    public void createChart(ChartViewer viewer, int index)    {        // The data for the area chart        double[] data = {30, 28, 40, 55, 75, 68, 54, 60, 50, 62, 75, 65, 75, 89, 60,            55, 53, 35, 50, 66, 56, 48, 52, 65, 62};        // The labels for the area chart        String[] labels = {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10",            "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22",            "23", "24"};        // Create a XYChart object of size 250 x 250 pixels        XYChart c = new XYChart(250, 250);        // Set the plotarea at (30, 20) and of size 200 x 200 pixels        c.setPlotArea(30, 20, 200, 200);        // Add an area chart layer using the given data        c.addAreaLayer(data);        // Set the labels on the x axis.        c.xAxis().setLabels(labels);        // Display 1 out of 3 labels on the x-axis.        c.xAxis().setLabelStep(3);        // Output the chart        viewer.setImage(c.makeImage());        //include tool tip for the chart        viewer.setImageMap(c.getHTMLImageMap("clickable", "",            "title='Hour {xLabel}: Traffic {value} GBytes'"));    }    //Allow this module to run as standalone program for easy testingpublic void int() // main(String[] args)    {        //Instantiate an instance of this demo module        DemoModule demo = new simplearea();        //Create and set up the main window        JFrame frame = new JFrame(demo.toString());        frame.addWindowListener(new WindowAdapter() {            public void windowClosing(WindowEvent e) {System.exit(0);} });        frame.getContentPane().setBackground(Color.white);        // Create the chart and put them in the content pane        ChartViewer viewer = new ChartViewer();        demo.createChart(viewer, 0);        frame.getContentPane().add(viewer);        // Display the window        frame.pack();        frame.setVisible(true);    }}

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Expert: objects replied at 2024-06-09 17:31:33

Mr Objects,

Last two question

1- Why "pulbic static void main {"working for Applet now .
2- What is reason you addthe following code in the original code
public void init() {
// Create the chart and put them in the content pane
ChartViewer viewer = new ChartViewer();
createChart(viewer, 0);
add(viewer);

THanks, Time to sleep, please answer me

Duncan

Author: duncanb7 replied at 2024-06-09 17:29:43

Author: duncanb7 replied at 2024-06-09 17:25:21

Expert: objects replied at 2024-06-09 17:23:47

Author: duncanb7 replied at 2024-06-09 17:23:37

Author: duncanb7 replied at 2024-06-09 17:22:15

Expert: objects replied at 2024-06-09 17:19:37

Author: duncanb7 replied at 2024-06-09 17:18:00

Expert: objects replied at 2024-06-09 17:14:17

Author: duncanb7 replied at 2024-06-09 17:12:37

Expert: objects replied at 2024-06-09 17:03:06

Accepted Solution

Expert: objects replied at 2024-06-09 17:01:49

500 points EXCELLENT

Author: duncanb7 replied at 2024-06-09 17:01:43

Author: duncanb7 replied at 2024-06-09 17:00:33

Author: duncanb7 replied at 2024-06-09 16:50:08

Expert: objects replied at 2024-06-09 16:43:15

&nbps;

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