public class ContentPanel extends JPanel{

    private static final long serialVersionUID = 1L;
    
//    private MyLine line;
//    private MyOval oval;
//    private MyRectangle rect;

    private int shapeNumber;
    private MyShape[] shape;
    public  int numLine,numOval,numRect;
    private int i;
    public  String strNum;
    //定义随机数组，该数组格式为{randomX1,randomY1,randomX2,randomY2,randomColor,randomFill,randomShape}
    public int[] randomAttr; 
    public boolean fillStatus;
    
    public ContentPanel(int number){
        shapeNumber=number;
        shape=new MyShape[shapeNumber];
    }
    
    protected void paintComponent(Graphics g) {
        numLine=numOval=numRect=0;
        
        super.paintComponent(g);
        //g.drawString("yuzhengzhong", 10,570);
        for(i=0;i<shapeNumber;i++){
            randomAttr=GetRandom.getRandom();
            if(randomAttr[5]==0)
                fillStatus=false;
            else if(randomAttr[5]==1)
                fillStatus=true;
            
            switch(randomAttr[6]){
            case Global.Line:
                shape[i]=new MyLine(randomAttr[0],randomAttr[1],randomAttr[2],randomAttr[3],randomAttr[4]);
                shape[i].draw(g);
                numLine++;
                break;
            case Global.OVAL:
                shape[i]=new MyOval(randomAttr[0],randomAttr[1],randomAttr[2],randomAttr[3],randomAttr[4],fillStatus);
                shape[i].draw(g);
                numOval++;
                break;
            case Global.RECTANGLE:
                shape[i]=new MyRectangle(randomAttr[0],randomAttr[1],randomAttr[2],randomAttr[3],randomAttr[4],fillStatus);
                shape[i].draw(g);
                numRect++;
                break;
            }
        }

        strNum="Lines:"+numLine+"   Ovals:"+numOval+"   Rectangles:"+numRect;
        g.drawString(strNum, 10,570);
    }


    public String retShapeNum(){
        System.out.println(strNum);
        return strNum;
    }

}

public class Main {

    public static void main(String[] args){
        JFrame frame=new JFrame("yuzhengzhong 实验四!");
        frame.setSize(600+10,600+35);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        
        String str=JOptionPane.showInputDialog("Enter the number of the shapes:");
        int number=Integer.parseInt(str);
        //System.out.println(number);
        
        ContentPanel panel=new ContentPanel(number);
        frame.add(panel);
        
        String shapeNumbers=panel.retShapeNum();
        System.out.print(shapeNumbers);
        JLabel label=new JLabel(shapeNumbers);
        frame.add(label,"South");
        
        frame.setVisible(true);
    }
}