reached end of file while parsing- using bluej

[prendergast36]

Im completely new to programming and am trying to figure out where I went wrong on this project. the project is to write the code to draw this. I did it with the visual bench mark but cannot figure it out

public class Picture
{
    private Square square1;
    private Square square2; 
    private Circle circle1;
    private Circle circle2;
    private Circle circle3;
    private Circle circle4;
    private Triangle triangle1;
    private Triangle triangle2;

    
}


    public class Square
{
    private int size;
    private int xPosition;
    private int yPosition;
    private String color;
    private boolean isVisible;

    /**
 * create a new square with arbitrary field values.
 */
public class Square {

 {
     size= theSize;
     xPosition= xPosition;
     yPosition= yPosition;
     color= theColor;
     if (theVisibility) 
     makeVisible();
     else
     makeInvisible();
}
public int square1()
{
   theSize(200);
xPosition(50);
yPosition(55);
Color("black");
   isVisible(true);

}
private square square2()
{
    theSize(180);
    xPosition(60);
    yPosition(65);
Color("white");
    isVisible(true);   
}  
    
public class triangle
{
    private int size;
    private int xPosition;
    private int yPosition;
    private String color;
    private boolean isVisible;
}
    public int Triangle();
       {
        int height = height;
        int width = width;
        int xPosition = xPosition;
        int yPosition = yPosition;
        string color = color;
        int isVisible =(true);
    }
  
   Triangle triangle1;
   {
       height(110);
       width(80);
       xPosition(145);
       yPosition(90);
       color("black");
       isVisible(true);
       draw();
       
    }
   Triangle triangle2;
   {
       height(100);
       width(70);
       xPosition(145);
       yPosition(96);
       color("white");
       isVisible(true);
    }
        

   

 public int Circle()
 {

    int diameter;
    int xPosition;
    int yPosition;
    String color;
    boolean isVisible;
}
private circle circle1;
{
    diameter(150);
    xPosition(70);
    yPosition(80);
    color("black");
    boolean isVisible;
}
 private circle circle2;
{
    diameter(140);
    xPosition(75);
    yPosition(85);
    color("white");
    boolean isVisible;
}private circle circle3;
{
    diameter(40);
    xPosition(125);
    yPosition(150);
    color("black");
    boolean isVisible;
}
private circle circle4;
{
   diameter(30);
   xPosition(130);
   yPosition(155);
   color("white");
   boolean isVisible;
}

[JosAH]

Count your curly brackets and see if they all match.

kind regards,

Jos