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    Re: NullPointerException but dont know why

    Thank you, however I put r.openFile() in it, but I still get the same exception.
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    NullPointerException but dont know why

    When I run class Programmalijst, I get a NullpointerException.
    It states that my x.hasNext() is null, I dont know why. Im a beginner in Java.




    import java.util.*;
    import java.io.File;
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