我在代码底部（第150行）找不到符号 - 方法占用者（int）可能遗漏了一些简单但无法解决的问题。只需要帮助这部分，该程序远非不完整。
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class Accommodation extends JFrame
implements ActionListener
{
/** Window layout constants (these need to be "static" to be referred to in main) */
private static final int panelWidth = 700;
private static final int panelHeight = 300;
/** The apartment block data structure */
private final int apartments = 10; // Total number of apartments (numbered from 1 for the user, but from 0 in the array!)
private String[] occupant; // Occupant information: one string per apartment
private int selectedApartment; // To identify the currently selected apartment
/** Configuration constants for the display */
private final int aptHeight = 40; // Dimensions for individual apartment rectangles
private final int aptWidth = 50;
/** A useful colour */
private final Color emptyColor = Color.green;
/** Graphical interface components */
private JButton next; // Dummy selection button
/** The drawing panel. */
private JPanel panel;
/**
* The main program launcher for the Accommodation application.
*
* @param args The command line arguments (ignored here).
*/
public static void main( String[] args )
{
Accommodation frame = new Accommodation();
frame.setSize( panelWidth+40, panelHeight+200 );
frame.setUpAccommodation();
frame.setUpGUI();
frame.setVisible( true );
frame.setTitle("Accomodation");
frame.setLocationRelativeTo(null);
} // End of main
/** Organizes overall set up of the apartment block details at launch time. */
private void setUpAccommodation()
{
// Create the occupant array and fill in first two apartments.
// The other elements need to contain "Empty"
occupant = new String[apartments];
occupant[0] = "Luke Skywalker"; // Occupants in apartments 1 and 2
occupant[1] = "The Hulk";
occupant[2] = "Empty";
occupant[3] = "Empty";
occupant[4] = "Empty";
occupant[5] = "Empty";
occupant[6] = "Iron Man";
occupant[7] = "Empty";
occupant[8] = "Empty";
occupant[9] = "Empty";
selectedApartment = 0; // Apartment 1 initially selected
} // End of setUpAccommodation
/** Organizes overall set up of the GUI at launch time. */
private void setUpGUI()
{
// Now set up the initial GUI: window, button, graphics panel and background colours.
setDefaultCloseOperation( EXIT_ON_CLOSE );
Container window = getContentPane();
window.setLayout( new FlowLayout() );
window.setBackground( Color.gray );
// Set up the next button
next = new JButton("Next");
window.add(next);
next.addActionListener(this);
// Set up the drawing panel
panel = new JPanel()
{
// paintComponent is called automatically when a screen refresh is needed
public void paintComponent(Graphics g)
{
// g is a cleared panel area
super.paintComponent(g); // Paint the panel's background
paintScreen(g); // Then the required graphics
}
};
panel.setPreferredSize( new Dimension( panelWidth, panelHeight ) );
panel.setBackground( Color.white );
window.add( panel );
} // End of setUpGUI
/**
* Handle button clicks
*
* @param e Information about the button click
*/
public void actionPerformed( ActionEvent e )
{
// In this template there is only a Next button.
// In the second stage (up to 69 marks) it should causes the display to be updated
// to show the details of the next occupant of the apartment block.
// Here is an indication of what it should do:
// Adjust the selected apartment indicator
selectedApartment++;
// And refresh the display
repaint();
} // End of actionPerformed
/**
* Display the apartment block, and the details of the occupant of the selected apartment.
*
* @param g The Graphics area to be drawn on, already cleared.
*/
private void paintScreen( Graphics g )
{
// Now draw the display
displayStatus(g);
displayBlock(g);
} // End of paintScreen
/** Display information about the currently selected apartment */
private void displayStatus(Graphics g)
{
// Just information about apartment 1 in this template
g.setColor(Color.black);
g.drawString(occupant[0], 190, 70);
} // End of displayStatus
/** Draw the apartments themselves: boundary, empty/occupied colouring, number */
private void displayBlock(Graphics g)
{
for(int i = 0; i < 10; i++)
{
if (occupant(i).equals("Empty"))
{
g.setColor(Color.green);
g.fillRect(150+(i*50), 120, aptWidth, aptHeight); //Sets the rectangle red to show the room is occupied
}
else
{
g.setColor(Color.red);
g.fillRect(150+(i*50), 120, aptWidth, aptHeight); //Sets the rectangle green to show the room is free
}
g.setColor(Color.black);
g.drawRect(150+(i*50), 120, aptWidth, aptHeight);
// Draws the numbers in the Corresponding boxes
g.setColor(Color.black);
g.drawString(Integer.toString(i+1), 150+(i*50)+15, 120+25);
}
//Drawing the key allowing the user to see what the colours refer to
g.setFont(new Font("TimesRoman", Font.PLAIN, 14));
g.drawString("Key", 20,120);
g.drawString("Occupied",60,150);
g.drawString("Empty", 60, 170);
// Drawing the boxes to show what the colours mean in the key
g.setColor(Color.red);
g.fillRect(20, 130, 25, 25);
g.setColor(Color.black);
g.drawRect(20, 130, 25, 25);
g.setColor(Color.green);
g.fillRect(20,150,25,25);
g.setColor(Color.black);
g.drawRect(20,150,25,25);
} // End of displayBlock
} // End of Accommodation
答案 0 :(得分：1)
occupant(i)应为occupant[i]，因为它是一个数组，而不是一个方法
答案 1 :(得分：0)
occupant(i)
这是方法调用
occupant[i]
这是数组i
occupant