Solved

Random

Posted on 1998-07-22
3
162 Views
Last Modified: 2010-03-30
I'm trying to make an applet which will randomly choose a string from an array loaded from <PARAM> tags.  I have little programming experience and have no idea how to do this.  Can you tell me how to get started?
0
Comment
Question by:6100
  • 2
3 Comments
 
LVL 4

Expert Comment

by:evijay
ID: 1227694
can you send your html page

0
 

Accepted Solution

by:
tomd012698 earned 100 total points
ID: 1227695
Here's your HTML applet tag...

<applet
    code=MyApplet.class
    name=MyApplet
    width=320
    height=440 >
    <param name=Strings value = "Smelly,Stinky,Spiteful">
</applet>

Your applet class could look something like this.

class MyApplet extends Applet
{
  // A Vector to store the strings.
  private Vector _strings = new Vector();

  public start()
  {
    // Get the parameter.
    // Use a StringTokenizer to extract all the tokens.
    // Place into the array

    String list = getParameter( "Strings" );
    StringTokenizer t = new StringTokenizer( list, ',' );

    while ( t.hasMoreTokens )
       _strings.addElement( t.nextToken() );
  }

  public String getRandomString()
  {
    int n = (int)(Math.random() * (_strings.size() - 1));
    return (String)_strings.elementAt( n );
  }
}  

This is a pretty simplistic case, but I hope it helps.  The strategy would remain basically the same.  Good luck.


0
 

Expert Comment

by:tomd012698
ID: 1227696
Just as a follow up...

The line:
  StringTokenizer t = new StringTokenizer( list, ',' );
should read:
  StringTokenizer t = new StringTokenizer( list, "," );

You should also be careful about randomly generating the array index to pull out the String.  The code I gave you doesn't check to make sure the array isnt empty.  You will access the array out of bounds if it is empty.

0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Android studio getdrawable(int) is deprecated 4 114
egit plugin on eclipse 8 82
difference of if loops 23 62
eclipse console opening separately 2 29
For beginner Java programmers or at least those new to the Eclipse IDE, the following tutorial will show some (four) ways in which you can import your Java projects to your Eclipse workbench. Introduction While learning Java can be done with…
Introduction This article is the second of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers the basic installation and configuration of the test automation tools used by…
Viewers learn about the third conditional statement “else if” and use it in an example program. Then additional information about conditional statements is provided, covering the topic thoroughly. Viewers learn about the third conditional statement …
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question