String cannot be applied to com.org.apache.xpath.internal.operations.String

Question

I\'m trying to create a PieChart in JavaFX, and I want to fill it with data from a HashMap.

Here\'s my code:

public Graph(HashM         


        

Answer 1

this code snippet:

new PieChart.Data(entry.getKey(), entry.getValue());

entry.getKey() is not string

String s = entry.getKey();
new PieChart.Data(s, entry.getValue());

Try it

https://docs.oracle.com/javase/8/javafx/api/javafx/scene/chart/PieChart.Data.html