Array aus non-static

[mr_xxl]

Hallo,
ich habe in einer nicht statischen Methode die Berechnung einer Variable durch geführt, die als Array zurückgegeben werden soll. Das Ergebnis brauche ich in einer statischen Methode, der Code sieht etwa so aus:

public double [ ] WertA(){
for(int i=0;……;i++){
Berechnung von a
}
return a;
}

public static double [ ] Gesamt(){
// b und c sind hier definiert

double a[]=new double[20];
        a.WertA();
…
alles= a+b+c;
return alles;

}

Aber irgendwie klappt die Zuweisung nicht. Könnt Ihr mir helfen?!

 

[HoaX]

Google doch mal nach der Fehlermeldung, die findest du hier sicherlich hunderte male ...

 

[diggaa1984]

du kannst in einem statischen kontext nicht mit instanz-spezifischem kontext arbeiten .. da der statische kontext an keine intanz der klasse gebunden ist.

du könntest der statischen methode ein objekt der klasse geben, aber ob das sinn macht und schön ist ist die andere frage.

 

[ARadauer]

Hund kann nix von Bello oder Hasso benutzen.
Bello oder Hasso können aber sehr wohl Methoden von Hund benutzen.


Poste mal die gesammte Klasse...

 

[mr_xxl]

import static java.lang.Math.*;
import java.io.*;
import java.util.*;


import org.jdesktop.application.Application;
import org.jdesktop.application.SingleFrameApplication;

/**
 * The main class of the application.
 */





public class VersuchApp extends SingleFrameApplication {

   


    protected void startup() {
        show(new VersuchView(this));
    }

    /**
     * This method is to initialize the specified window by injecting resources.
     * Windows shown in our application come fully initialized from the GUI
     * builder, so this additional configuration is not needed.
     */
    @Override protected void configureWindow(java.awt.Window root) {
    }

    /**
     * A convenient static getter for the application instance.
     * @return the instance of VersuchApp
     */
    public static VersuchApp getApplication() {
        return Application.getInstance(VersuchApp.class);
    }

    /**
     * Main method launching the application.
     */

     public static int Zeitzone = 1;
     public static double gLaenge =15.231;
     public static double gBreite = 40.871;
     public static double N = 24.3778;
     public static double ae=0; 
     public static double [][]Daten=new double[9][8760];
     public static double [][] anlage=new double[8][8760];
     public static double [][] Ediff=new double[8][8760];
     public static double reihe= 6.5*14; 
     public static double b=1.65; 
     public static double h=0.992;

    public static double Wert1(double[] d){ 

      double Monat=0;
    for (int i=0; i<1; i++){ // 1. Spalte
   //   for (int i=0; i<d.length-6; i++){ //
            Monat = d[i];
      }
      return Monat;
    }

    public static double Wert2(double[] d){ 

      double Tag=0;
    for (int i=0; i<2; i++){ // 2. Spalte
   //   for (int i=0; i<d.length-6; i++){ //
            Tag = d[i];
      }
      return Tag;
    }

    public static double Wert3(double[] d){ 

      double Stunden=0;
    //for (int i=0; i<3; i++){ // 3. Spalte
      for (int i=0; i<d.length-4; i++){ //
            Stunden = d[i];
      }
      return Stunden;
    }

    public static double Wert4(double[] d){

      double Ta=0;
    //for (int i=0; i<4; i++){ // 4. Spalte
      for (int i=0; i<d.length-3; i++){ //
            Ta = d[i];
      }
      return Ta;
    }


 public static double Wert5(double[] d){ 

      double Strahlung=0;
   // for (int i=0; i<5; i++){ // 5. Spalte
     for (int i=0; i<d.length-2; i++){ 
            Strahlung = d[i];
      }
      return Strahlung;
    }



     public static double[][] Daten () throws IOException { 

      BufferedReader reader = new BufferedReader(new FileReader(new File("C:/User/Desktop/Java/Daten.txt")));
      String line = null;
      ArrayList<String> lines = new ArrayList<String>();

      while((line = reader.readLine()) != null){
         lines.add(line);
      }


      String[][] data = new String[lines.size()][];
      for(int i = 0; i<lines.size(); i++){
         data[i] = lines.get(i).split(";");
      }

       double[][] doubleArray = new double[data.length][];
       for(int i = 0; i < data.length; i++){
         doubleArray[i] = new double[data[i].length]; 
         for(int k = 0; k < data[i].length; k++){
            doubleArray[i][k] = Double.parseDouble(data[i][k]); 
         }
      }
       double  Eghor [] =new double[8760];
       for ( int i=0;i < 8760;i++){

            Eghor [i]=  VersuchApp.Wert5(doubleArray[i]);

        
        }


       double  Zeit [] =new double[8760]; 
       for ( int i=0;i < 8760;i++){

            Zeit [i]=  VersuchApp.Wert3(doubleArray[i]);

    
        }

       double  Temp [] =new double[8760]; 
       for ( int i=0;i < 8760;i++){

            Temp [i]=  VersuchApp.Wert4(doubleArray[i]);

   
        }
     


        int Jahr=2003;
      if( Jahr % 4 ==0){
         int length =8784;
               }
      int length =8760;

       double  Monat [] =new double[length];
       double  Tag [] =new double[length];
       double j[]=new double[length];
       double d[]=new double[length];
       double z[]=new double[length];
       double Moz[]=new double[length];
       double Woz[]=new double[length];
       double W[]=new double[length];
       double Sonne[]=new double[length];
       double Sonnenhoehe[]=new double[length];
       double Az[]=new double[length];
       double Azimut[]=new double[length];
       double kt[]=new double[length];
       double diff[]=new double[length];
       double Ediffhor[]=new double[length];
       double Edirhor[]=new double[length];
       double Ogen[]=new double[length];
       double Edirgen[]=new double[length];
       double Erefl[]=new double[length];


       for ( int i=0;i < length;i++){

           Monat [i]=  VersuchApp.Wert1(doubleArray[i]);
           Tag [i]=  VersuchApp.Wert2(doubleArray[i]);

           if(Monat[i]==2){
              Tag [i]= Tag[i]+31;
           }
           if(Monat[i]==3){
              Tag [i]= Tag[i]+59;   // +1
           }
           if(Monat[i]==4){
              Tag [i]= Tag[i]+90;
           }
           if(Monat[i]==5){
              Tag [i]= Tag[i]+120;
           }
           if(Monat[i]==6){
              Tag [i]= Tag[i]+151;
           }
           if(Monat[i]==7){
              Tag [i]= Tag[i]+181;
           }
           if(Monat[i]==8){
              Tag [i]= Tag[i]+212;
           }
           if(Monat[i]==9){
              Tag [i]= Tag[i]+243;
           }
           if(Monat[i]==10){
              Tag [i]= Tag[i]+273;
           }
           if(Monat[i]==11){
              Tag [i]= Tag[i]+304;
           }
           if(Monat[i]==12){
              Tag [i]= Tag[i]+334;
           }
           j[i]=360*Tag[i]/(length/24);

           d[i]= 0.3948-23.2559*cos(toRadians(j[i]+9.1))-0.3915*cos(toRadians(2*j[i]+5.4))-0.1764*cos(toRadians(3*j[i]+26));
           z[i]= 0.0066+7.3525*cos(toRadians(j[i]+85.9))+ 9.9359*cos(toRadians(2*j[i]+108.9))+0.3387*cos(toRadians(3*j[i]+105.2));
           Moz[i]= Zeit[i]- Zeitzone + 4*gLaenge/60;
           Woz[i]=Moz[i]+z[i]/60; 
           W[i]=(12-Woz[i])*15;

           Sonne[i]= cos(toRadians(W[i]))*cos(toRadians(gBreite))*cos(toRadians(d[i]))+sin(toRadians(gBreite))*sin(toRadians(d[i]));
               if (Sonne[i] >1){
                   Sonne[i] =1;}
               if (Sonne[i] < -1){
                   Sonne[i] =- 1;}
               Sonnenhoehe[i]= toDegrees(asin(Sonne[i]));


               Az[i]=(sin(toRadians(Sonnenhoehe[i]))*sin(toRadians(gBreite))-sin(toRadians(d[i])))/(cos(toRadians(Sonnenhoehe[i]))*cos(toRadians(gBreite)));
               if (Az[i] >1){
                   Az[i] =1;}
               if (Az[i] < -1){
                   Az[i] =- 1;}

                if(Woz[i] >12 ||Woz[i]<0){
                Az[i]=toDegrees(acos(Az[i]));
                }
                 else {
                 Az[i]=-toDegrees(acos(Az[i]));
                 }
               Azimut[i]=180+Az[i];


            kt[i]=Eghor[i]/(1367*sin(toRadians(Sonnenhoehe[i])));


        if(kt[i]<=0.3){
           diff[i]=Eghor[i]*(1.02-0.254*kt[i]+0.0123*sin(toRadians(Sonnenhoehe[i])));
       }
       else if(0.3 <kt[i] && kt[i]<0.78){
           diff[i]=Eghor[i]*(1.4-1.749*kt[i]+0.177*sin(toRadians(Sonnenhoehe[i])));
       }
       else if(kt[i] >= 0.78){
           diff[i]=Eghor[i]*(0.486*kt[i]-0.182*sin(toRadians(Sonnenhoehe[i])));
       }
        Ediffhor[i]=diff[i];

        if(Ediffhor[i]> Eghor[i]){
            Ediffhor[i]= Eghor[i];

        }
        Edirhor[i]= Eghor[i]-Ediffhor[i];


        Ogen[i]= toDegrees(acos(-cos(toRadians(Sonnenhoehe[i]))*sin(toRadians(N))*cos(toRadians(Azimut[i]-ae))+sin(toRadians(Sonnenhoehe[i]))*cos(toRadians(N))));

        Edirgen[i]=Edirhor[i]*cos(toRadians(Ogen[i]))/sin(toRadians(Sonnenhoehe[i]));

        if(Edirgen[i]<=0){
            Edirgen[i]=0;
        }

        Erefl[i]=Eghor[i]*0.25*0.5*(1-cos(toRadians(N)));

       

        Daten[0][i]=Sonnenhoehe[i];
        Daten[1][i]=Azimut[i];
        Daten[2][i]=Ediffhor[i];
        Daten[3][i]=Edirhor[i];
        Daten[4][i]=Eghor[i];
        Daten[5][i]=Ogen[i];
        Daten[6][i]=Edirgen[i];
        Daten[7][i]=Erefl[i];
        Daten[8][i]=Temp[i];

    //    System.out.println(Daten[8][i]);


         }

return Daten;

}
public double [ ] Ediffgen() throws IOException{
 
        int length =8760;
  
         double Ediffgen[]=new double[length];
          double [][] data = VersuchApp.Daten ();
            int Index=VersuchView.l;

   if(Index==0){

         for ( int i=0;i <length;i++){
             
             double Ediffhor= data[2][i];
             double Sonnenhoehe = data [0][i];

          Ediffgen[i]=Ediffhor/2*(1+cos(toRadians(Sonnenhoehe)));
        //  System.out.println (Ediffgen[i]);
         }
   }

    if(Index==1){ 
          for ( int i=0;i <length;i++){

             double Sonnenhoehe = data [0][i];
             double Ediffhor= data[2][i];
             double Eghor= data[4][i];
             double Ogen= data[5][i];


        double F=1-pow(Ediffhor/Eghor,2);

        Ediffgen[i]=Ediffhor/2*(1+cos (toRadians(N)))*(1+F*pow(sin(toRadians(N/2)),3))*(1+F*pow(cos(toRadians(Ogen)),2)*pow(cos(toRadians(Sonnenhoehe)),2));
       if (Eghor==0){
                Ediffgen[i]=0;
             }
       // System.out.println (Ediffgen[i]);
          }

    }

    if(Index==2){

         double F11 = 0, F12 = 0, F13=0, F21 = 0, F22 = 0, F23 = 0, F1, F2, a, c;


          for ( int i=0;i <length;i++){

             double Sonnenhoehe = data [0][i];
             double Ediffhor= data[2][i];
             double Edirhor= data[3][i];
             double Ogen= data[5][i];

             double Ohor=toRadians(90-Sonnenhoehe);
             double AM=1/sin(toRadians(Sonnenhoehe));

        double Ep =(((Ediffhor + Edirhor * pow(sin(toRadians(Sonnenhoehe)),-1))/Ediffhor)+1.041*pow(Ohor,3)) /(1+1.041*pow(Ohor,3));
        double H=AM*Edirhor/1367;
    if (Ep >= 1 && Ep <1.065 ){
        F11=-0.008;
        F12=0.588;
        F13=-0.062;
        F21=-0.06;
        F22=0.072;
        F23=-0.022;
    }
 else if (Ep >= 1.065 && Ep <1.23 ){
        F11=0.13;
        F12=0.683;
        F13=-0.151;
        F21=-0.019;
        F22=0.066;
        F23=-0.029;
    }
        else if (Ep >= 1.23 && Ep <1.5 ){
        F11=0.33;
        F12=0.487;
        F13=-0.221;
        F21=0.055;
        F22=-0.064;
        F23=-0.026;
    }
        else if (Ep >= 1.5 && Ep <1.95 ){
        F11=0.568;
        F12=0.187;
        F13=-0.295;
        F21=0.109;
        F22=-0.152;
        F23=-0.014;
    }
        else if (Ep >= 1.95 && Ep <2.8 ){
        F11=0.873;
        F12=-0.392;
        F13=-0.362;
        F21=0.226;
        F22=-0.462;
        F23=0.001;
    }
        else if (Ep >= 2.8 && Ep <4.5 ){
        F11=1.132;
        F12=-1.237;
        F13=-0.412;
        F21=0.288;
        F22=-0.823;
        F23=0.131;
    }
        else if (Ep >= 4.5 && Ep <6.2 ){
        F11=1.06;
        F12=-1.6;
        F13=-0.359;
        F21=0.264;
        F22=-1.127;
        F23=0.131;
    }
        else if (Ep <=6.2 ){
        F11=0.678;
        F12=-0.327;
        F13=-0.25;
        F21=0.156;
        F22=-1.377;
        F23=0.251;
    }


        F1=F11+F12*H+Ohor*F13;
        F2=F21+F22*H+Ohor*F23;

        if(cos(toRadians(Ogen))>=0){
            a=cos(toRadians(Ogen));
        }
        else{
            a=0;
                  }
        if (sin(toRadians(Sonnenhoehe))>=0.087){
             c=sin(toRadians(Sonnenhoehe));
         }
        else{
            c=0.087;
        }

        Ediffgen[i]=Edirhor*(0.5*(1+cos(toRadians(N)))*(1-F1)+a/c*F1+F2*sin(toRadians(N)));

        if(Ediffgen[i]<0){
            Ediffgen[i]=0;
        }
     }
  }
         return  Ediffgen;
         
         
    }

  public static double [ ] Eges() throws IOException{
       
      int length =8760;
        double Eggen[]=new double[length];
         double Ediffgeneigt[]=new double[length];
          Ediffgeneigt.Ediffgen();
        
          double [][] data = VersuchApp.Daten ();
   for ( int i=0;i <length;i++){

             double Edirgen = data [6][i];
             double Erefl= data[7][i];

             Eggen[i]=Edirgen+Ediffgeneigt[i]+Erefl;
           System.out.println(Eggen[i]);
    }
   return Eggen;
 }
 public static void main(String[] args) throws IOException {
          launch(VersuchApp.class, args);
        // VersuchApp.Eges();
   
    } 
}

Es gibt`s auch noch ein Class, welches Index liefert von einem Cobmobox

 

[ARadauer]

Variablen und Methoden schreibt man klein... warum sind alle methoden static?

Methoden machen etwas... solten also verben beinhalten, liefereDaten, berechneEdiff... Wert1 ist keine Methode...
Den Code sauber einzurücken hilft...

HAb jetzt nicht alles aber sollte schon mal besser laufen...

import static java.lang.Math.*;
import java.io.*;
import java.util.*;

import org.jdesktop.application.Application;
import org.jdesktop.application.SingleFrameApplication;

/**
 * The main class of the application.
 */

public class VersuchApp extends SingleFrameApplication {

   
   protected void startup() {
      versuchsView = new VersuchView(this);
      show(versuchsView);
   }

   /**
    * This method is to initialize the specified window by injecting resources.
    * Windows shown in our application come fully initialized from the GUI
    * builder, so this additional configuration is not needed.
    */
   @Override
   protected void configureWindow(java.awt.Window root) {
   }

   /**
    * A convenient static getter for the application instance.
    * 
    * @return the instance of VersuchApp
    */
   public static VersuchApp getApplication() {
      return Application.getInstance(VersuchApp.class);
   }

   /**
    * Main method launching the application.
    */

   public int Zeitzone = 1;

   public double gLaenge = 15.231;

   public double gBreite = 40.871;

   public double N = 24.3778;

   public double ae = 0;

   public double[][] Daten = new double[9][8760];

   public double[][] anlage = new double[8][8760];

   public double[][] Ediff = new double[8][8760];

   public double reihe = 6.5 * 14;

   public double b = 1.65;

   public double h = 0.992;
   
   VersuchView versuchsView;

   public double Wert1(double[] d) {

      double Monat = 0;
      for (int i = 0; i < 1; i++) { // 1. Spalte
         // for (int i=0; i<d.length-6; i++){ //
         Monat = d[i];
      }
      return Monat;
   }

   public double Wert2(double[] d) {

      double Tag = 0;
      for (int i = 0; i < 2; i++) { // 2. Spalte
         // for (int i=0; i<d.length-6; i++){ //
         Tag = d[i];
      }
      return Tag;
   }

   public double Wert3(double[] d) {

      double Stunden = 0;
      // for (int i=0; i<3; i++){ // 3. Spalte
      for (int i = 0; i < d.length - 4; i++) { //
         Stunden = d[i];
      }
      return Stunden;
   }

   public double Wert4(double[] d) {

      double Ta = 0;
      // for (int i=0; i<4; i++){ // 4. Spalte
      for (int i = 0; i < d.length - 3; i++) { //
         Ta = d[i];
      }
      return Ta;
   }

   public double Wert5(double[] d) {

      double Strahlung = 0;
      // for (int i=0; i<5; i++){ // 5. Spalte
      for (int i = 0; i < d.length - 2; i++) {
         Strahlung = d[i];
      }
      return Strahlung;
   }

   public double[][] Daten() throws IOException {

      BufferedReader reader = new BufferedReader(new FileReader(new File("C:/User/Desktop/Java/Daten.txt")));
      String line = null;
      ArrayList<String> lines = new ArrayList<String>();

      while ((line = reader.readLine()) != null) {
         lines.add(line);
      }

      String[][] data = new String[lines.size()][];
      for (int i = 0; i < lines.size(); i++) {
         data[i] = lines.get(i).split(";");
      }

      double[][] doubleArray = new double[data.length][];
      for (int i = 0; i < data.length; i++) {
         doubleArray[i] = new double[data[i].length];
         for (int k = 0; k < data[i].length; k++) {
            doubleArray[i][k] = Double.parseDouble(data[i][k]);
         }
      }
      double Eghor[] = new double[8760];
      for (int i = 0; i < 8760; i++) {

         Eghor[i] = Wert5(doubleArray[i]);

      }

      double Zeit[] = new double[8760];
      for (int i = 0; i < 8760; i++) {

         Zeit[i] = Wert3(doubleArray[i]);

      }

      double Temp[] = new double[8760];
      for (int i = 0; i < 8760; i++) {

         Temp[i] = Wert4(doubleArray[i]);

      }

      int Jahr = 2003;
      if (Jahr % 4 == 0) {
         int length = 8784;
      }
      int length = 8760;

      double Monat[] = new double[length];
      double Tag[] = new double[length];
      double j[] = new double[length];
      double d[] = new double[length];
      double z[] = new double[length];
      double Moz[] = new double[length];
      double Woz[] = new double[length];
      double W[] = new double[length];
      double Sonne[] = new double[length];
      double Sonnenhoehe[] = new double[length];
      double Az[] = new double[length];
      double Azimut[] = new double[length];
      double kt[] = new double[length];
      double diff[] = new double[length];
      double Ediffhor[] = new double[length];
      double Edirhor[] = new double[length];
      double Ogen[] = new double[length];
      double Edirgen[] = new double[length];
      double Erefl[] = new double[length];

      for (int i = 0; i < length; i++) {

         Monat[i] = Wert1(doubleArray[i]);
         Tag[i] = Wert2(doubleArray[i]);

         if (Monat[i] == 2) {
            Tag[i] = Tag[i] + 31;
         }
         if (Monat[i] == 3) {
            Tag[i] = Tag[i] + 59; // +1
         }
         if (Monat[i] == 4) {
            Tag[i] = Tag[i] + 90;
         }
         if (Monat[i] == 5) {
            Tag[i] = Tag[i] + 120;
         }
         if (Monat[i] == 6) {
            Tag[i] = Tag[i] + 151;
         }
         if (Monat[i] == 7) {
            Tag[i] = Tag[i] + 181;
         }
         if (Monat[i] == 8) {
            Tag[i] = Tag[i] + 212;
         }
         if (Monat[i] == 9) {
            Tag[i] = Tag[i] + 243;
         }
         if (Monat[i] == 10) {
            Tag[i] = Tag[i] + 273;
         }
         if (Monat[i] == 11) {
            Tag[i] = Tag[i] + 304;
         }
         if (Monat[i] == 12) {
            Tag[i] = Tag[i] + 334;
         }
         j[i] = 360 * Tag[i] / (length / 24);

         d[i] = 0.3948 - 23.2559 * cos(toRadians(j[i] + 9.1)) - 0.3915 * cos(toRadians(2 * j[i] + 5.4)) - 0.1764 * cos(toRadians(3 * j[i] + 26));
         z[i] = 0.0066 + 7.3525 * cos(toRadians(j[i] + 85.9)) + 9.9359 * cos(toRadians(2 * j[i] + 108.9)) + 0.3387 * cos(toRadians(3 * j[i] + 105.2));
         Moz[i] = Zeit[i] - Zeitzone + 4 * gLaenge / 60;
         Woz[i] = Moz[i] + z[i] / 60;
         W[i] = (12 - Woz[i]) * 15;

         Sonne[i] = cos(toRadians(W[i])) * cos(toRadians(gBreite)) * cos(toRadians(d[i])) + sin(toRadians(gBreite)) * sin(toRadians(d[i]));
         if (Sonne[i] > 1) {
            Sonne[i] = 1;
         }
         if (Sonne[i] < -1) {
            Sonne[i] = -1;
         }
         Sonnenhoehe[i] = toDegrees(asin(Sonne[i]));

         Az[i] = (sin(toRadians(Sonnenhoehe[i])) * sin(toRadians(gBreite)) - sin(toRadians(d[i]))) / (cos(toRadians(Sonnenhoehe[i])) * cos(toRadians(gBreite)));
         if (Az[i] > 1) {
            Az[i] = 1;
         }
         if (Az[i] < -1) {
            Az[i] = -1;
         }

         if (Woz[i] > 12 || Woz[i] < 0) {
            Az[i] = toDegrees(acos(Az[i]));
         } else {
            Az[i] = -toDegrees(acos(Az[i]));
         }
         Azimut[i] = 180 + Az[i];

         kt[i] = Eghor[i] / (1367 * sin(toRadians(Sonnenhoehe[i])));

         if (kt[i] <= 0.3) {
            diff[i] = Eghor[i] * (1.02 - 0.254 * kt[i] + 0.0123 * sin(toRadians(Sonnenhoehe[i])));
         } else if (0.3 < kt[i] && kt[i] < 0.78) {
            diff[i] = Eghor[i] * (1.4 - 1.749 * kt[i] + 0.177 * sin(toRadians(Sonnenhoehe[i])));
         } else if (kt[i] >= 0.78) {
            diff[i] = Eghor[i] * (0.486 * kt[i] - 0.182 * sin(toRadians(Sonnenhoehe[i])));
         }
         Ediffhor[i] = diff[i];

         if (Ediffhor[i] > Eghor[i]) {
            Ediffhor[i] = Eghor[i];

         }
         Edirhor[i] = Eghor[i] - Ediffhor[i];

         Ogen[i] = toDegrees(acos(-cos(toRadians(Sonnenhoehe[i])) * sin(toRadians(N)) * cos(toRadians(Azimut[i] - ae)) + sin(toRadians(Sonnenhoehe[i])) * cos(toRadians(N))));

         Edirgen[i] = Edirhor[i] * cos(toRadians(Ogen[i])) / sin(toRadians(Sonnenhoehe[i]));

         if (Edirgen[i] <= 0) {
            Edirgen[i] = 0;
         }

         Erefl[i] = Eghor[i] * 0.25 * 0.5 * (1 - cos(toRadians(N)));

         Daten[0][i] = Sonnenhoehe[i];
         Daten[1][i] = Azimut[i];
         Daten[2][i] = Ediffhor[i];
         Daten[3][i] = Edirhor[i];
         Daten[4][i] = Eghor[i];
         Daten[5][i] = Ogen[i];
         Daten[6][i] = Edirgen[i];
         Daten[7][i] = Erefl[i];
         Daten[8][i] = Temp[i];

         // System.out.println(Daten[8][i]);

      }

      return Daten;

   }

   public double[] Ediffgen() throws IOException {

      int length = 8760;

      double Ediffgen[] = new double[length];
      double[][] data = Daten();
      int Index = versuchsView.l;

      if (Index == 0) {

         for (int i = 0; i < length; i++) {

            double Ediffhor = data[2][i];
            double Sonnenhoehe = data[0][i];

            Ediffgen[i] = Ediffhor / 2 * (1 + cos(toRadians(Sonnenhoehe)));
            // System.out.println (Ediffgen[i]);
         }
      }

      if (Index == 1) {
         for (int i = 0; i < length; i++) {

            double Sonnenhoehe = data[0][i];
            double Ediffhor = data[2][i];
            double Eghor = data[4][i];
            double Ogen = data[5][i];

            double F = 1 - pow(Ediffhor / Eghor, 2);

            Ediffgen[i] = Ediffhor / 2 * (1 + cos(toRadians(N))) * (1 + F * pow(sin(toRadians(N / 2)), 3))
                  * (1 + F * pow(cos(toRadians(Ogen)), 2) * pow(cos(toRadians(Sonnenhoehe)), 2));
            if (Eghor == 0) {
               Ediffgen[i] = 0;
            }
            // System.out.println (Ediffgen[i]);
         }

      }

      if (Index == 2) {

         double F11 = 0, F12 = 0, F13 = 0, F21 = 0, F22 = 0, F23 = 0, F1, F2, a, c;

         for (int i = 0; i < length; i++) {

            double Sonnenhoehe = data[0][i];
            double Ediffhor = data[2][i];
            double Edirhor = data[3][i];
            double Ogen = data[5][i];

            double Ohor = toRadians(90 - Sonnenhoehe);
            double AM = 1 / sin(toRadians(Sonnenhoehe));

            double Ep = (((Ediffhor + Edirhor * pow(sin(toRadians(Sonnenhoehe)), -1)) / Ediffhor) + 1.041 * pow(Ohor, 3)) / (1 + 1.041 * pow(Ohor, 3));
            double H = AM * Edirhor / 1367;
            if (Ep >= 1 && Ep < 1.065) {
               F11 = -0.008;
               F12 = 0.588;
               F13 = -0.062;
               F21 = -0.06;
               F22 = 0.072;
               F23 = -0.022;
            } else if (Ep >= 1.065 && Ep < 1.23) {
               F11 = 0.13;
               F12 = 0.683;
               F13 = -0.151;
               F21 = -0.019;
               F22 = 0.066;
               F23 = -0.029;
            } else if (Ep >= 1.23 && Ep < 1.5) {
               F11 = 0.33;
               F12 = 0.487;
               F13 = -0.221;
               F21 = 0.055;
               F22 = -0.064;
               F23 = -0.026;
            } else if (Ep >= 1.5 && Ep < 1.95) {
               F11 = 0.568;
               F12 = 0.187;
               F13 = -0.295;
               F21 = 0.109;
               F22 = -0.152;
               F23 = -0.014;
            } else if (Ep >= 1.95 && Ep < 2.8) {
               F11 = 0.873;
               F12 = -0.392;
               F13 = -0.362;
               F21 = 0.226;
               F22 = -0.462;
               F23 = 0.001;
            } else if (Ep >= 2.8 && Ep < 4.5) {
               F11 = 1.132;
               F12 = -1.237;
               F13 = -0.412;
               F21 = 0.288;
               F22 = -0.823;
               F23 = 0.131;
            } else if (Ep >= 4.5 && Ep < 6.2) {
               F11 = 1.06;
               F12 = -1.6;
               F13 = -0.359;
               F21 = 0.264;
               F22 = -1.127;
               F23 = 0.131;
            } else if (Ep <= 6.2) {
               F11 = 0.678;
               F12 = -0.327;
               F13 = -0.25;
               F21 = 0.156;
               F22 = -1.377;
               F23 = 0.251;
            }

            F1 = F11 + F12 * H + Ohor * F13;
            F2 = F21 + F22 * H + Ohor * F23;

            if (cos(toRadians(Ogen)) >= 0) {
               a = cos(toRadians(Ogen));
            } else {
               a = 0;
            }
            if (sin(toRadians(Sonnenhoehe)) >= 0.087) {
               c = sin(toRadians(Sonnenhoehe));
            } else {
               c = 0.087;
            }

            Ediffgen[i] = Edirhor * (0.5 * (1 + cos(toRadians(N))) * (1 - F1) + a / c * F1 + F2 * sin(toRadians(N)));

            if (Ediffgen[i] < 0) {
               Ediffgen[i] = 0;
            }
         }
      }
      return Ediffgen;

   }

   public double[] Eges() throws IOException {

      int length = 8760;
      double Eggen[] = new double[length];
      double Ediffgeneigt[] = new double[length];
      Ediffgen();

      double[][] data = Daten();
      for (int i = 0; i < length; i++) {

         double Edirgen = data[6][i];
         double Erefl = data[7][i];

         Eggen[i] = Edirgen + Ediffgeneigt[i] + Erefl;
         System.out.println(Eggen[i]);
      }
      return Eggen;
   }

   public static void main(String[] args) throws IOException {
      launch(VersuchApp.class, args);
      // VersuchApp.Eges();

   }
}

 

[mr_xxl]

Danke für den Code, aber ich wollte die Rechnung überprüfen, indem ich die Methode in main ausrufe. Was muss man veränder damit es funktioniert?

 

[diggaa1984]

Danke für den Code, aber ich wollte die Rechnung überprüfen, indem ich die Methode in main ausrufe. Was muss man veränder damit es funktioniert?

in der main kann man generell nur statische methoden nutzen oder aufrufen, da diese methode selbst statisch ist. Du kannst aber in der Main auch Objekte/Instanzen erzeugen und dann deren nicht-statische Methoden aufrufen.

Ich halte die Main-Klasse so minimal wie möglich, den Rest bringe ich in eigenen Klassen unter und behalte so meine Übersicht und komm nicht in Versuchung alles zwangsweise statisch machen zu müssen.

 

[mr_xxl]

Bei der Durchführung taucht die folgende Meldung:

Exception in thread "main" java.lang.NullPointerException
at versuch.VersuchApp.Ediffgen(VersuchApp.java:576)
at versuch.VersuchApp.main(VersuchApp.java:1056)

public class VersuchView extends FrameView {

    public  int l=2;

private void diffStrahlungActionPerformed(java.awt.event.ActionEvent evt) {                                              
ind(diffStrahlung.getSelectedindex());
         }  

  public int ind(int index) {
  l=index; // ist heir null weil, wenn die Box noch unbenutzt ist
  l=l+1;
  System.out.println("Index" + l);
  return l;
}

An welcher Stelle taucht null auf?

 

[Murray]

An welcher Stelle taucht null auf?

An einer Stelle, die Du hier noch nicht gepostet hast.

 

[ARadauer]

Danke für den Code, aber ich wollte die Rechnung überprüfen, indem ich die Methode in main ausrufe. Was muss man veränder damit es funktioniert?

Instanz deiner Klasse machen.

Mach bitte vorher alle deine Methoden und Variablen klein... sonst ist es sehr mühsam für uns das zu lesen...

 

[mr_xxl]

jede Zeile wo die Variable l zu sehen ist steht schon oben

 

[Murray]

Bahnhof?

 

[ARadauer]

Variable l wird nirgendwo verwendet bzw. da wo sie vorkommt steht schon da

meinst du das

l=index; // ist heir null weil, wenn die Box noch unbenutzt ist

l kann nicht null sein, da int ein primitiver datentyp ist... und wenn wäre es auch egal... da darauf nur zugewiesen ist