Thread: whats wrong with my simple code?

/*
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package javaapplication4;
import javax.swing.JOptionPane.*;
/**
 *
 * @author Joel
 */
public class JavaApplication4 {
 
     public static void main(String[] args) {
    int antaldagar;
    double dagspris;
    double totpris;
    String indata;
    indata = showInputDialog("antal dagar?");
    antaldagar = Integer.parseInt(indata);
    indata = showInputDialog("Pris per dag?");
    dagspris = Double.parseDouble(indata);
 
    totpris = dagsPris * antaldagar;
    showMessageDialog(null, "Totalt pris: " + totpris);
 
 
 
 
 
    }
}

Some of the codes is in Swedish but i dont think that will matter. Here is some messages that followed...

Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - Erroneous sym type: showInputDialog
at javaapplication4.JavaApplication4.main(JavaApplica tion4.java:18)

-links removed-


Thanks for the replies!