repaint()

	 class  AddPrev  implements  ActionListener{
		 public   void  actionPerformed(ActionEvent event){
			PicturePanel iP =  new  PicturePanel(askFileName());
			getContentPane().add(iP, BorderLayout.CENTER);
			repaint();
		}
	}

 import  java.awt.BorderLayout;
 import  java.awt.*;
 import  java.awt.Color;
 import  java.awt.Image;
 import  java.awt.Toolkit;
 import  java.awt.event.*;
 import  java.awt.event.ActionEvent;
 import  java.awt.event.ActionListener;
 import  java.io.File;

 import  javax.swing.ImageIcon;
 import  javax.swing.JFrame;
 import  javax.swing.JMenu;
 import  javax.swing.JMenuBar;
 import  javax.swing.JMenuItem;
 import  javax.swing.JOptionPane;
 import  javax.swing.JPanel;
 import  javax.swing.JTextArea;
 import  javax.swing.event.*;

 class  ButtonFrame  extends  JFrame {
	
	 private  ButtonPanel panel;
	 private  JMenuBar menu;
	 private  JMenu file;
	 private  JMenu edit;
	
	 private   void  BuildMenu(){
		 this .menu =  new  JMenuBar();
		 this .file =  new  JMenu("File");
		 this .edit =  new  JMenu("Edit");
		
		JMenuItem open =  this .file.add("Open");
		open.addActionListener( new  AddPrev());
		
		menu.add( this .file);
		 this .setJMenuBar(menu);
	}
	
	 public  ButtonFrame(){
		Toolkit kit = Toolkit.getDefaultToolkit();
		Image img = kit.getImage("jicontest.GIF");
		 this .setIconImage(img);		
		 this .setTitle("Здарова, мужики!");
		 this .setSize( 600 ,  900 );
		GridLayout l =  new  GridLayout( 4 ,  2 );
		 this .getContentPane().setLayout(l);
	
		 this .BuildMenu();		
		
	}
	
	 private  String askFileName(){
		String FileName = JOptionPane.showInputDialog("Yo");
		 return  FileName;
	}
	
	 class  Executer  implements  ActionListener{
		 public   void  actionPerformed(ActionEvent event){
			System.out.println(panel.getTextField());
			File f =  new  File(panel.getTextField());			
		}		
	}
	
	 class  AddPrev  implements  ActionListener{
		 public   void  actionPerformed(ActionEvent event){
			PicturePanel iP =  new  PicturePanel(askFileName());
			getContentPane().add(iP, BorderLayout.CENTER);
			repaint();
		}
	}
	
}

repaint();
validate();