第三周作业

public class Demo {
		public static void main(String[] args) {
  			Component form = new Component("window");
    		Component picture = new Component("picture");
    		Component btnLogin = new Component("button");
    		Component btnReg = new Component("button");
    		Component frame = new Component("frame");
    		Component lbUsername = new Component("label");
    		Component txtUsername = new Component("txtBox");
    		Component lbPassword = new Component("label");
    		Component txtPassword = new Component("passwordBox");
    		Component checkbox = new Component("checkbox");
    		Component txtForget = new Component("txtBox");
    		Component lblink = new Component("label");
    
    		form.add(picture);
    		form.add(btnLogin);
    		form.add(btnReg);
    
    		frame.add(lbUsername);
    		frame.add(txtUsername);
    		frame.add(lbPassword);
    		frame.add(txtPassword);
    		frame.add(checkbox);
    		frame.add(txtForget);
    		frame.add(lblink);
    
    		form.add(frame);
    		form.print();
		}
}