Help with string.valueof

Question

I have the following code which is meant to read in a file into text boxes and let me scroll through all the items in the file.
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import bank.*;
public class ReadSequentialFile extends JFrame {
   private ObjectInputStream input;
   private BankUI userInterface;
   private JButton nextButton, openButton, nextRecordButton ;
   private Store store = new Store(50);
     private Employee employeeList[] = new Employee[50];
     private int count = 0, next = 0;
   // Constructor -- initialize the Frame
   public ReadSequentialFile()
      super( "View Data" );
      // create instance of reusable user interface
      userInterface = new BankUI( 8 );  // eight textfields
      getContentPane().add( userInterface, BorderLayout.CENTER );
      // get reference to generic task button doTask1 from BankUI
      openButton = userInterface.getDoTask1Button();
      openButton.setText( "Open File" );
      // register listener to call openFile when button pressed
      openButton.addActionListener(
         // anonymous inner class to handle openButton event
         new ActionListener() {
            // close file and terminate application
            public void actionPerformed( ActionEvent event )
               openFile();
         } // end anonymous inner class
      ); // end call to addActionListener
      // register window listener for window closing event
      addWindowListener(
         // anonymous inner class to handle windowClosing event
         new WindowAdapter() {
            // close file and terminate application
            public void windowClosing( WindowEvent event )
               if ( input != null )
                         closeFile();
               System.exit( 0 );
         } // end anonymous inner class
      ); // end call to addWindowListener
      // get reference to generic task button doTask2 from BankUI
      nextButton = userInterface.getDoTask2Button();
      nextButton.setText( "Next Record" );
      nextButton.setEnabled( false );
      // register listener to call readRecord when button pressed
      nextButton.addActionListener(
         // anonymous inner class to handle nextRecord event
         new ActionListener() {
            // call readRecord when user clicks nextRecord
            public void actionPerformed( ActionEvent event )
               readRecord();
         } // end anonymous inner class
      ); // end call to addActionListener
      nextRecordButton = userInterface.getDoTask3Button();
      nextRecordButton.setText( "Get Next Record" );
      nextRecordButton.setEnabled( false );
      // register listener to call readRecord when button pressed
      nextRecordButton.addActionListener(
         // anonymous inner class to handle nextRecord event
         new ActionListener() {
            // call readRecord when user clicks nextRecord
            public void actionPerformed( ActionEvent event )
               getNextRecord();
         } // end anonymous inner class
      ); // end call to addActionListener
      pack();
      setSize( 600, 300 );
      setVisible( true );
   } // end ReadSequentialFile constructor
   // enable user to select file to open
   private void openFile()
      // display file dialog so user can select file to open
      JFileChooser fileChooser = new JFileChooser();
      fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );
      int result = fileChooser.showOpenDialog( this );
      // if user clicked Cancel button on dialog, return
      if ( result == JFileChooser.CANCEL_OPTION )
         return;
      // obtain selected file
      File fileName = fileChooser.getSelectedFile();
      // display error if file name invalid
      if ( fileName == null || fileName.getName().equals( "" ) )
         JOptionPane.showMessageDialog( this, "Invalid File Name",
            "Invalid File Name!", JOptionPane.ERROR_MESSAGE );
      else {
         // open file
         try {
            input = new ObjectInputStream(
               new FileInputStream( fileName ) );
            openButton.setEnabled( false );
            nextButton.setEnabled( true );
         // process exceptions opening file
         catch ( IOException ioException ) {
            JOptionPane.showMessageDialog( this, "Error Opening File",
               "Error", JOptionPane.ERROR_MESSAGE );
      } // end else
   } // end method openFile
   // read record from file
   public void readRecord()
      Employee record;
      // input the values from the file
      try {
        record = ( Employee ) input.readObject();
     employeeList[count++]= record;
     store.add(record);
          store.displayAll(); // displays store in terminal window
          System.out.println("Count is " + store.getCount());
         // create array of Strings to display in GUI
         String values[] = { String.valueOf(record.getName()),
         String.valueOf(record.getGender()),
          String.valueOf( record.getStartDate() ),
         String.valueOf( record.getID() ),
           String.valueOf( record.getDateOfBirth() ) };
         // display record contents
         userInterface.setFieldValues( values );
      // display message when end-of-file reached
      catch ( EOFException endOfFileException ) {
         nextButton.setEnabled( false );
      nextRecordButton.setEnabled( true );
         JOptionPane.showMessageDialog( this, "No more records in file",
            "End of File", JOptionPane.ERROR_MESSAGE );
      // display error message if class is not found
      catch ( ClassNotFoundException classNotFoundException ) {
         JOptionPane.showMessageDialog( this, "Unable to create object",
            "Class Not Found", JOptionPane.ERROR_MESSAGE );
      // display error message if cannot read due to problem with file
      catch ( IOException ioException ) {
         JOptionPane.showMessageDialog( this,
            "Error during read from file",
            "Read Error", JOptionPane.ERROR_MESSAGE );
   } // end method readRecord
   private void getNextRecord()
           Employee record = employeeList[next++%count];//cycles throught accounts
      //create aray of string to display in GUI
      String values[] = {String.valueOf(record.getName()),
         String.valueOf(record.getGender()),
          String.valueOf( record.getStartDate() ),
         String.valueOf( record.getID() ),
           String.valueOf( record.getDateOfBirth() ) };
  // close file and terminate application
   private void closeFile()
      // close file and exit
      try {
         input.close();
         System.exit( 0 );
      // process exception while closing file
      catch ( IOException ioException ) {
         JOptionPane.showMessageDialog( this, "Error closing file",
            "Error", JOptionPane.ERROR_MESSAGE );
         System.exit( 1 );
   } // end method closeFile
   public static void main( String args[] )
      new ReadSequentialFile();
} // end class ReadSequentialFileMy problem is when i compile the code i get the following errors:
ReadSequentialFile.java:181: getStartDate(Date) in Employee cannot be applied to
          String.valueOf( record.getStartDate() ),
                                ^In the employee class I did getStartDate like:
     public Date getStartDate(Date sDate)
          return start;
     }Can anybody tell me why i get this error and how to solve it?

Answer 1

so in
the employee class i need to chnage the getDate
method?Well, it's your class, so it's up to you to know what that method is supposed to do, to give it a signature that allows it to be called with the data to do its job, and the pass it the right data when you call it.
Don't think only about how to make the compiler happy. Think about what you're trying to accomplish and in what way the current code doesn't do that. The compiler can only really detect syntactical errors, but sometimes those errors arise as the result of logic errors in your mental picture of the steps to follow. So take the compiler's complaints as a hint to reexamine what you're doing and see if it makes sense.