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Thread: throws Exception error

  1. #1
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    Default throws Exception error

    In my neatbens project I have two java class

    First java class have two function.
    public void e()
    public static void f(String[] args) throws Exception


    second java class named rezultati have functions like:
    public void a()
    public void b()
    public void c()
    public void d(String[] args) throws Exception

    if in first java class in function f i use comand:

    rezultati objekt = new rezultati();
    objekt.d(args) or objekt.a(), or objekt.b()

    its ok but if I like use command objekt.d(args) in public void e() I get error. How I can call objekt.d(args) from ublic void e()?

  2. #2
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    Default Re: throws Exception error

    You should be able to. So you must not be providing sufficient information. Please construct a small example that has complete code that demonstrates the problem.

    Regards,
    Jim

  3. #3
    Super Moderator Norm's Avatar
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    Default Re: throws Exception error

    I get error
    Please copy the full text of the error message and paste it here. It has important info about the error.
    If you don't understand my answer, don't ignore it, ask a question.

  4. #4
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    Default Re: throws Exception error

    I get error message:
    Exception in thread "main" java.lang.RuntimeException: Uncompilable source code - non-static method sestej() cannot be referenced from a static context
    at preprosti.Preprosti.main(Preprosti.java:27)
    C:\Users\Igor\AppData\Local\NetBeans\Cache\8.2\exe cutor-snippets\run.xml:53: Java returned: 1
    BUILD FAILED (total time: 1 second)

    I send link with example
    https://www.dropbox.com/s/dcyehl7dyv...rosti.zip?dl=0

  5. #5
    Super Moderator Norm's Avatar
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    Default Re: throws Exception error

    non-static method sestej() cannot be referenced from a static context
    The method sestej is an instance method that can only be called when an instance of the class exists using a reference to that instance.
    It can not be called from a static method without using a reference to the instance of the class.
    For example:
       rezultati objekt = new rezultati();    // create instance of class
       objekt.d(args);                               // use reference to instance to call method
     
       d(args);                                        // not allowed if this code is in static method

    I send link with example
    Please post all code and examples here in the thread, not via a link
    If you don't understand my answer, don't ignore it, ask a question.

  6. #6
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    Default Re: throws Exception error

    public class Preprosti {
         public  void prikaz()  {
             rezultati objekt = new rezultati();
           String cunam = objekt.poveja(args); // dont work normal
            System.out.println(cunam);
     
         }
        public static void main(String[] args) throws Exception {
           rezultati objekt = new rezultati();
           int izracunam = objekt.sestej(5, 8); // work normal
            System.out.println(izracunam);
            String cunam = objekt.poveja(args); // work normal
            System.out.println(cunam);
           objekt.skrij(args); // work normal
          prikaz(); // dont work normal
     
        }
        }

    function , sestej, poveja in java class rezultati;

     public int sestej(int a, int b){
        int c = a+b;
        return c;
     
    }
        public  String poveja(String [] args) throws Exception {
            String ime;
            ime ="avtomobil";
            return ime;
        }
    Last edited by Norm; November 19th, 2018 at 04:41 PM. Reason: Removed space in ending code tag

  7. #7
    Super Moderator Norm's Avatar
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    Default Re: throws Exception error

    Please edit your post and wrap your code with code tags:

    [code]
    **YOUR CODE GOES HERE**
    [/code]

    to get highlighting and preserve formatting.

    Do you have any java programming questions?

    What does "dont work normal" mean? If there are error messages, please copy the full text and pasted it here.
    If you don't understand my answer, don't ignore it, ask a question.

  8. #8
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    Default Re: throws Exception error

     
    javni razred Preprosti { 
    public void prikaz () { 
    rezultati objekt = novi rezultati (); 
    String cunam = objekt.poveja (args); // ne deluje normalno 
    System.out.println (cunam); 
     
    } 
    public static void main (String [] args) vrže Izjema { 
    rezultati objekt = novi rezultati (); 
    int izracunam = objekt.sestej (5, 8); // delo normalno 
    System.out.println (izracunam); 
    String cunam = objekt.poveja (args); // delo normalno 
    System.out.println (cunam); 
    objekt.skrij (args); // delo normalno 
    prikaz (); // ne deluje normalno 
     
    } 
    }

    funkcijo, sestej, poveja v java class rezultate;

    public int sestej (int a, int b) { 
    int c = a + b; 
    vrnitev c; 
     
    } 
    javni ukaz String poveja (String [] args) vrže izjemo { 
    String ime; 
    ime = "avtomobil"; 
    vrniti ime; 
    }
    Last edited by Norm; November 19th, 2018 at 04:43 PM. Reason: Removed space from end code tag 2X

  9. #9
    Super Moderator Norm's Avatar
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    Default Re: throws Exception error

    What happened to the code's indentations? All the source statements should not start in the first column.

    Does the code get compiler error messages? Please copy the full text of the error messages and paste it here.
    If you don't understand my answer, don't ignore it, ask a question.

  10. #10
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    Default Re: throws Exception error

    for me this code work normal.

         rezultati objekt = new rezultati();
             String[] args = null;
             try {
                 objekt.skrij(args);
             } catch (Exception ex) {
                 Logger.getLogger(Preprosti.class.getName()).log(Level.SEVERE, null, ex);
             }

  11. #11
    Super Moderator Norm's Avatar
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    Default Re: throws Exception error

    Did you have any java programming questions?
    If you don't understand my answer, don't ignore it, ask a question.

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