Quinn-Curtis Forums
Quinn-Curtis Forums
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 Tools for Java
 QCRTGraph for Java
 Java Version?
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

John Bell

1 Posts

Posted - 21 Jul 2008 :  05:12:08  Show Profile  Reply with Quote
Documentation says that
quote:
*Requires that your target system has the Java 1.4 or 5.0

When I try to compile under 1.4 I get an error
quote:
class file has wrong version 49.0, should be 48.0
which implies that the required version is 1.5 - is this correct?

quinncurtis

1585 Posts

Posted - 21 Jul 2008 :  09:16:16  Show Profile  Reply with Quote
The qcchart2djava and qcrtgraphjava libraries themselves are compatible with Java 1.4. Most all of the example program for the QCRTGraph utilize parametrized collections (Vector), because the use of un-parametrized collections now generates hundreds of warnings in current versions (last 3-4 years) of Eclipse. Parametrized collections are only supported under Java 1.5 and higher. The QCChart2D examples don't use collections and they should all compile and run OK.

Is this just an observation, or is there some reason you need to restrict yourself to Java 1.4?
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
Quinn-Curtis Forums © 2000-2018 Quinn-Curtis, Inc. Go To Top Of Page
Powered By: Snitz Forums 2000 Version 3.4.07