Java - String array null pointer exception

Asked Sep 09 '15 at 20:51

Active Sep 09 '15 at 21:00

Viewed 43 times

I get a null pointer exception. Why? I tried and debugged the code...Java says the String array is filled. But when i start the program without debugging mode, Java says nullpointerexception...

BufferedReader quelle = new BufferedReader(new FileReader(file));
    String auftrag = quelle.readLine();
    String[] daten = auftrag.split(";");
//...
String test;

    for(int i = 3;i<=daten.length-1;i+=3)
    {

        test = daten[i-3] + " " + daten[i-2] + " " + daten[i-1];
        g.drawString(daten[i-3] + " " + daten[i-2] + " " + daten[i-1],x,y);
        y += 16;
    }

asked Sep 09 '15 at 20:51

Waldemar Enns

2

What is the content of your file? – brlaranjeira Sep 09 '15 at 20:53
2

Where do you get the NPE? – Andy Turner Sep 09 '15 at 20:54
3

On which line of code do you get the NullPointerException ? – Manos Nikolaidis Sep 09 '15 at 20:54
1

Where are you getting the Graphics object `g` from? – gla3dr Sep 09 '15 at 20:55
Nits: Do you mean to use `g.drawString(test, x, y)`? Also, `i – Andy Turner Sep 09 '15 at 20:55
I get the NullPointerException on the following line: – Waldemar Enns Sep 10 '15 at 13:55
String[] daten = auftrag.split(";"); – Waldemar Enns Sep 10 '15 at 13:56
the content of my file is just a string,devided with semicolons in one line, the graphics g object is from the method head – Waldemar Enns Sep 10 '15 at 13:56

Java - String array null pointer exception

0 Answers0