Javafx IO Exception about “implements Serializable”
问题 I have some trouble on javafx FILE IO. I have implemented Serializable but there is also some wrong. Thank you for your help. 1.Appdata class package data; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.io.Serializable; import javafx.beans.property.SimpleStringProperty; import javafx.collections.FXCollections; import javafx