如何开始使用JFreeChart？

本文介绍了如何开始使用JFreeChart？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我已经下载了最新版本的JFreeChart（1.0.14）并想开始使用它。我之前只导入了标准的Java包，比如 java.io。* ，但从未处理过第三方库。我需要告诉jGRASP所以它知道并可以访问JFreeChart库吗？我试图像这样导入它 import org.jfree.chart.ChartFactory; 但是得到以下错误 java：1：package org.jfree。图表不存在。

I have downloaded the latest version of JFreeChart (1.0.14) and want to start using it. I only have imported standard Java packages like java.io.* before and never dealt with 3rd party libraries. What do I need to tell jGRASP so it knows about and can access the JFreeChart library? I have tried to import it like this import org.jfree.chart.ChartFactory; but getting the following error java:1: package org.jfree.chart does not exist.

推荐答案

您必须在两个编译时添加库的jar文件和运行时 CLASSPATH 。在jGRASP中，您可以通过Settings> PATH / CLASSPATH> Workspace对话框完成。请参见 HOWTO ，控制面板和设置了解更多详情。

You have to add a library's jar file into both compile-time and run-time CLASSPATH. In jGRASP you can do it through "Settings > PATH/CLASSPATH > Workspace" dialog. See HOWTO, Control Panel and Settings for more details.