JFrame Wont Open при объединении с другими классами в основном

Question

Когда я создаю экземпляр класса, который должен открыть JFrame в основном методе, который содержит другой экземпляр класса, JFrame не открывается, и я не уверен, что я делаю неправильно, поскольку нет синтаксических ошибок.

Спасибо за помощь.

Tega

Получить данные Класс:

import java.io.File; 
import java.io.IOException; 
import java.util.ArrayList; 
import java.util.Scanner; 
import javax.swing.JOptionPane; 
import java.text.DecimalFormat; 

/** 
* This class get the data from the user in a .csv format and split it into data and variable. 
* The class also turn the level data into returns 
*/ 

/** 
* @author 
*/ 

public class GetData 
{ 
    private ArrayList<String> originalDataString = new ArrayList<String>(); //This would be used to get the data from file 
    private String dateTitle;             //For date title 
    private String variableTitle;            //For the title of the variable from your file. 
    private ArrayList<String> date = new ArrayList<String>();     //To store the date 
    private ArrayList<Double> variableLevel = new ArrayList<Double>();  //To store the content of the Level data 
    private ArrayList<Double> variableReturn = new ArrayList<Double>();  //To store the content of the Return data 

    /** 
    * The constructor opens a file to read the data 
    * @param filename The file to open 
    * @throws IOException 
    */ 

    public void getDataMethod() throws IOException 
    { 
     String filename = JOptionPane.showInputDialog("What is the name of the file you for the data?" + 
                 "\nThe file must be saved as .csv(comma delimited)"); 
     File file = new File(filename); 

     //Making sure that the file entered exist 
     if (!file.exists()) 
     { 
       System.out.println("The file " + filename + " is not found"); 
       System.exit(0);   
     } 


     //Getting the data from the file    
     Scanner inputFile = new Scanner(file); 
     String line; //To read the lines from the data 

     while (inputFile.hasNext()) 
     { 
      line = inputFile.nextLine();    
      //Add each line to the ArrayList 
      originalDataString.add(line);  
     } 


     //This part split the date and the variable and put them into one array 
     String arrayLine = " ";   // To add all the Strings in the originalDataString array. 
     String[] splitOriginalDataString; // This array stores the split data 

     for (int i = 0; i < originalDataString.size(); i++) 
     { 
      arrayLine += (originalDataString.get(i) + ",");    
     } 

     splitOriginalDataString = arrayLine.split(","); 


     //This part separates the data to dates and variable 
     dateTitle = splitOriginalDataString[0]; 
     variableTitle = splitOriginalDataString[1];      
     for (int i = 2; i < splitOriginalDataString.length; i++) 
     { 
      if (i%2 == 0) 
       date.add(splitOriginalDataString[i]);   
      else 
       variableLevel.add(Double.parseDouble(splitOriginalDataString[i]));    
     } 


     //Getting the returns from the level data 
     variableReturn.add(0.0);  //To account for the fact that the returns starts on the second month 
     for (int i = 0; i < variableLevel.size()-1; i++) 
     { 
      variableReturn.add(((variableLevel.get(i+1)/variableLevel.get(i))-1)*100);   
     }  

     // To ask the user if they want to check whether the Level data was imported correctly 
     String checkLevelData = JOptionPane.showInputDialog("Do you want to Check whether the data was imported correctly?" + 
                 "\n" + "Choose: Y for Yes and N for No"); 

     StringBuilder level = new StringBuilder(); 
     level.append(dateTitle + "  " + variableTitle); 
     level.append("\n" + "============"); 
     for(int i = 0; i < date.size(); i++) 
     { 
      level.append("\n" + date.get(i) + "   " + variableLevel.get(i));   
     } 

     if (checkLevelData.equalsIgnoreCase("Y")) 
     { 
      JOptionPane.showMessageDialog(null, level); 
     } 


     // To ask the user if they want to check whether the Level data was imported correctly 
     String checkReturnData = JOptionPane.showInputDialog("Do you want to check the return data?" + 
                   "\n" + "Choose: Y for Yes and N for No"); 

     StringBuilder Lreturn = new StringBuilder(); 
     Lreturn.append(dateTitle + "  " + variableTitle); 
     Lreturn.append("\n" + "============"); 
     DecimalFormat formatter = new DecimalFormat("#0.00"); 
     for(int i = 1; i < date.size(); i++) 
     { 
      Lreturn.append("\n" + date.get(i) + "   " + formatter.format(variableReturn.get(i)));    
     } 

     if (checkReturnData.equalsIgnoreCase("Y")) 
     { 
      JOptionPane.showMessageDialog(null, Lreturn); 
     } 


     // Close the file 
     inputFile.close(); 
     //Exiting the Message Dialog 
     System.exit(0); 
    } 

    public String getVariableTitle() 
    { 
     return variableTitle; 
    } 

    public String getDateTitle() 
    { 
     return dateTitle; 
    } 

    public ArrayList<String> getDate() 
    { 
     return date;   
    } 

    public ArrayList<Double> getVariableLevel() 
    { 
     return variableLevel;  
    } 

    public ArrayList<Double> getVariableReturn() 
    { 
     return variableReturn;  
    } 

} 

SummaryStatistics Класс:

import javax.swing.*; 
import java.awt.event.*; 
import javax.swing.JOptionPane; 
import java.text.DecimalFormat; 


/** 
* This class performs some summary statistics of the data. 
*/ 

/** 
* @author 
* 
*/ 
public class SummaryStatistics extends JFrame 
{ 
    private String dateTitle;             //For date title 
    private String variableTitle;            //For the title of the variable from your file. 
    private String[] date;             //To store the date from GetData Class 
    private double[] variableLevel;           //To store the content of the Level data from GetData Class 
    private double[] variableReturn;           //To store the content of the Return data from GetData Class 
    private JPanel panel;              //To reference a panel 
    private JLabel messageLabel;            //To reference a label 
    private JButton avgLevelButton; 
    private JButton lowLevelButton; 
    private JButton highLevelButton; 
    private JButton varLevelButton; 
    private JButton sdLevelButton; 
    private JButton allLevelButton; 
    private JButton avgReturnButton; 
    private JButton lowReturnButton; 
    private JButton largeReturnButton; 
    private JButton varReturnButton; 
    private JButton sdReturnButton; 
    private JButton allReturnButton; 
    private final int WINDOW_WIDTH = 600;          //Window width 
    private final int WINDOW_HEIGTH = 200;         //Window height 


    //Constructor 
    public SummaryStatistics() 
    { 
     copyGetData(); 

     //Set the window title 
     setTitle("Summary Statistics of " + variableTitle); 
     //set the size of the window 
     setSize(WINDOW_WIDTH, WINDOW_HEIGTH); 
     //Specify what happens when the close button is clicked 
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 

     //Adding the buildPanel method to the frame 
     buildPanel(); 

     //Adding the panel to the frame's content pane 
     add(panel);  

     setVisible(true);  
    } 

    /** 
    * This method copies the data and the data from the GetData Class 
    */ 
    public void copyGetData() 
    { 
     GetData data = new GetData(); 

     //Get the dateTitle and variableTitle 
     dateTitle = data.getDateTitle(); 
     variableTitle = data.getVariableTitle(); 

     //Copy the date, varibaleLevel and variableReturn 
     date = new String[data.getDate().size()]; 
     variableLevel = new double[data.getVariableLevel().size()]; 
     variableReturn = new double[data.getVariableReturn().size()]; 

     for (int i = 0; i < data.getDate().size(); i++) 
     { 
      date[i] = data.getDate().get(i);   
     } 

     for (int i = 0; i < data.getVariableLevel().size(); i++) 
     { 
      variableLevel[i] = data.getVariableLevel().get(i);  
     } 

     for (int i = 0; i < data.getVariableReturn().size(); i++) 
     { 
      variableReturn[i] = data.getVariableReturn().get(i);   
     }   
    } 

    /** 
    * This buildPanel method adds label and a buttons panel. 
    */ 
    private void buildPanel() 
    { 
     //Create label to display instructions 
     messageLabel = new JLabel("Press the buttom to get the summary statistics you want"); 

     //Create the buttons to get the level summary statistics. 
     avgLevelButton = new JButton("Average of the Prices"); 
     lowLevelButton = new JButton("Lowest Price"); 
     highLevelButton = new JButton("Highest Price"); 
     varLevelButton = new JButton("Variance of the Prices"); 
     sdLevelButton = new JButton("Standard Deviation of the Prices"); 
     allLevelButton = new JButton("All the Summary Statistics"); 

     //Adding an action listener to the button 
     avgLevelButton.addActionListener(new ButtonListener()); 



     //Create a panel object 
     panel = new JPanel(); 
     //Add label and buttons to the panel 
     panel.add(messageLabel); 
     panel.add(avgLevelButton); 
     panel.add(lowLevelButton); 
     panel.add(highLevelButton); 
     panel.add(varLevelButton); 
     panel.add(sdLevelButton); 
     panel.add(allLevelButton); 
    } 

    /** 
    * Private inner class that handles the event when the user clicks a button 
    */ 
    private class ButtonListener implements ActionListener 
    { 
     public void actionPerformed(ActionEvent e) 
     { 
      //Get the action command 
      String actionCommand = e.getActionCommand(); 

      //To create the display format 
      DecimalFormat formatter = new DecimalFormat("#0.00"); 

      //Determine which button was clicked 

      //Level Statistics 
      if (actionCommand.equals("Average of the Prices")); 
      { 
       double sum = 0;   //Accumulator to get the sum of the data for the average 
       for (int i = 0; i < variableLevel.length; i++) 
       { 
        sum += variableLevel[i]; 
       } 
       JOptionPane.showMessageDialog(null, "The average of the prices of " + variableTitle + ":" + 
               "\n" + formatter.format(sum/variableLevel.length)); 
      }   
     }  
    } 

    //TODO System.exit(0);  

} 

Основной метод:

import java.io.IOException; 

public class AnalyticsDemo { 

    /** 
    * @param args 
    */ 
    public static void main(String[] args) throws IOException 
    { 
     //Creating an Instance to GetData class 
     GetData getData = new GetData(); 
     getData.getDataMethod(); 

     //Creating an Instance of SummaryStatistics Class 
     SummaryStatistics summary = new SummaryStatistics(); 
    } 

} 

Answer 1

Там в System.exit(0) заявление на е nd вашего метода getDataMethod, который приведет к тому, что JVM завершит работу до того, как вы даже создадите свой кадр ...