找不到符号：org.jfree.chart.LegendItem 中的 LegendItem()

Question

我在我的 java 程序中使用以下行

LegendItem item1 = new LegendItem("US", "US", "US", "US",
                new Rectangle(10, 10), new GradientPaint(0.0f, 0.0f,
                new Color(16, 89, 172), 0.0f, 0.0f, new Color(201, 201, 244)));

and using "jfreechart-1.0.13.jar" file and getting this error

cannot find symbol
  symbol:   constructor LegendItem(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.awt.Rectangle,java.awt.GradientPaint)
  location: class org.jfree.chart.LegendItem

but in the jar file in class org.jfree.chart.LegendItem.class i have seen the constructor with the parameters i am using.
i am using net beans6.9.1 ide . i am not able to find the reason for this.
if any one can help me please

Thanks
Yugal

Answer 1

编译&执行良好，使用 jfreechart-1.0。 3.jar 在类路径中

import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Rectangle;
import org.jfree.chart.LegendItem;

/**
 * Hello world!
 *
 */
public class App 
{
    public static void main( String[] args )
    {
        LegendItem item1 = new LegendItem("US", "US", "US", "US",
                new Rectangle(10, 10), new GradientPaint(0.0f, 0.0f,
                new Color(16, 89, 172), 0.0f, 0.0f, new Color(201, 201, 244)));

        System.out.println(item1.getSeriesIndex());
    }
}