identifier expected � why show up when I was trying to compile !

Question

When i was trying to add another botton as a " buttonAdd " I will get the error message so I would be glad to help me , please !
import java.awt.*;
import java.applet.*;
import java.applet.Applet;
import java.awt.event.*;
import java.awt.image.*;
public class PhotoAlbum extends Applet implements ActionListener{
// declare all the components
     Button
               previous = new Button("Previous"),
               first = new Button("First"),
               last = new Button("Last"),
               next = new Button("Next");
               buttonAdd = new Button("Display");
     Canvas
               imageCanvas = new Canvas();
     final int total = 10;               // total # of images
     int i = 0;                    // this is value of currently displayed image
     Image Pictures[] = new Image[total];
public void init() {
     makeGui();
          // get all the images
          for (int p=0; p < total; p++) {
               Pictures[p] = getImage(getCodeBase(), "Photos/image"+p+".JPG");
               prepareImage(Pictures[p], this);
     } // init
     private void displayImage(int n) {
          // Display the nth image on the canvas
          Graphics g = imageCanvas.getGraphics();
          g.clearRect(10, 10, 400, 400);
          g.drawImage(Pictures[n], 30, 10, this);
          g.drawString("Image: "+(n+1)+" � "+total, 30, 380);
     } // displayImage
     public void drawFirst(){
          displayImage(0);
     } // drawFirst
     public void drawLast(){
          displayImage(total-1);
     } // drawLast
     public void drawPrevious(){
          i = i - 1;
          if (i <= -1){
               i = total-1;
          displayImage(i);
     } // drawPrevious
     public void drawNext(){
          i = i + 1;
          if (i == total){
               i = 0;
          displayImage(i);
     } // drawNext
     public void actionPerformed(ActionEvent e){
          if (e.getSource() == previous)
               drawPrevious();
          else if (e.getSource() == first)
               drawFirst();
          else if (e.getSource() == last)
               drawLast();
          else if (e.getSource() == next)
               drawNext();
else if (e.getSource() == buttonAdd)
               drawLast() ;
     } // actionPerformed
     public void paint(Graphics g) {
          drawFirst();
          i = 0;
     private void makeGui() {
          setBackground(Color.black);
          setForeground(Color.white);
          setLayout(new BorderLayout());
          Panel p1 = new Panel();
          p1.add(previous);
          p1.add(first);
          p1.add(next);
          p1.add(last);
          p1.add(buttonAdd);
          add(BorderLayout.NORTH, p1);
          add(BorderLayout.CENTER, imageCanvas);
          previous.addActionListener(this);
          first.addActionListener(this);
          last.addActionListener(this);
          next.addActionListener(this);
          buttonAdd.addActionListener(this);
     } // makeGui
} // PhotoAlbum

Answer 1

Because you left the semicolon at the end of the line before it, instead of changing it to a comma.