import java.awt .* ;
import java .awt .event .*;
	
public class Sum implements ActionListener {
 	Frame f;
  	TextArea ta;
	TextField tf1,tf2;
	Image icon ;
	int arv1,arv2;
	
	Sum(){
		f=new Frame ("Korrutamine");
		ta=new TextArea ();
		tf1=new TextField ();
		tf2=new TextField ();
		tf1.addFocusListener (new Voku(tf1,tf2,ta));
		icon=Toolkit.getDefaultToolkit ().getImage ("c:/mir/icon.gif");
		f.setIconImage (icon);
		f.setLocation (100,100);
		f.setSize (400,300) ;
		f.setLayout(new BorderLayout ());
		Container c;
		f.add (c=new Container (),BorderLayout.NORTH   );
		c.setLayout (new GridLayout (1,2));
		c.add (tf1);
		c.add (tf2);
		f.add (ta,BorderLayout.CENTER );
		f.addWindowListener (new WindowAdapter(){
			public void  windowClosing(WindowEvent we){System.exit (0) ;}		
		});
		this.menyy();
		f.setVisible (true);
	}



	class Voku extends  FocusAdapter  {
		TextField tf1 ,tf2;
		TextArea ta;
	
		Voku(TextField tf1 , TextField tf2 ,TextArea ta){ 
			this.tf1 =tf1  ; 
			this.tf2 =tf2 ; 
			this.ta =ta ;
		}
		public void focusGained(FocusEvent fe){
			tf1.setText ("");
			tf2.setText ("");
			ta.setText("");
		}
	}


	void menyy(){
		MenuBar mb=new MenuBar ();
		Menu menu=new Menu ("Menyy");
		MenuItem [] Menyy={new  MenuItem ("Uus"),new MenuItem ("Arvuta"),new MenuItem ("-"),new MenuItem ("Välja") };
		int i=0;
		for(  ;i<Menyy.length ;i++ ){
			menu.add (Menyy[i]);
			Menyy[i].addActionListener (this);
		}
		mb.add (menu);
		f.setMenuBar (mb);
	} 
	
	
	public void actionPerformed(ActionEvent ae){
   	MenuItem mi=(MenuItem)(ae.getSource ());
   	if(mi.getActionCommand ().equalsIgnoreCase ("arvuta")){this.calc() ;}  
   	if(mi.getActionCommand ().equalsIgnoreCase ("välja")){System.exit (0);}  
  		if(mi.getActionCommand ().equalsIgnoreCase ("uus")){neW ();}  
	}

	
	void neW(){
		tf1.setText("");
		tf2.setText("");
		ta.setText ("");
	}

	
	void calc(){
		try{	
			arv1=new Integer (tf1.getText ()).intValue ();
			arv2=new Integer (tf2.getText ()).intValue ();
			this.Korruta(tf1.getText (),tf2.getText ());
		}
		catch(Exception e){ta.setText ("Liiga suur arv või vale esitus !!!");}
	}
	
		
	void Korruta(String arv1,String arv2){
		Integer a=new Integer (arv1);
		Integer b=new Integer (arv2);
		String a1=arv1,a2=arv2;
		String header=a1+"*"+a2;
		int volp=header.length ();
		StringBuffer sb=new StringBuffer ();
		sb.append (header)  ;sb.append ("\n")  ;
		this.Triibud (header.length (),sb); 
		sb.append ("\n");
		int i;
	   for(i=a1.length () ;i>0 ;i--){
			try{
				Integer arv=new Integer (a1.substring (i-1,i)) ;
		  	   Long korrutis=new Long ((long)(arv.intValue ())*Math.abs (b.intValue ()));
	   		if(i>1 & i<a1.length ()){
		  			this.Tyhikud (volp-korrutis.toString ().length ()-1,sb);
		   		sb.append ("+"+korrutis.toString ());
				}else{
				   this.Tyhikud (volp-korrutis.toString ().length (),sb);
				   sb.append (korrutis.toString ());
				}
   	   	sb.append ("\n");
      		volp--;
			} catch(Exception e){}    
		}
		this.Triibud (header.length (),sb);
	   sb.append ("\n");
		Long tulem=new Long(((long)(new Integer (a1).intValue())) *new Integer (a2).intValue()) ;
		this.Tyhikud (header.length ()-tulem.toString ().length ()  ,sb);
		sb.append (tulem.toString ());
		ta.setText (sb.toString ());
	}
	
	
	void Triibud(int i,StringBuffer s){
		int j=Math.abs (i);
		int k=0;
		for(  ;k<j;k++){s.append ("_");}
	}
 	 
	void Tyhikud(int i,StringBuffer s){
		int j=Math.abs (i);
		int k=0;
		for(  ;k<j;k++){s.append ("  ");}
	}

	public static void main(String args[]){
		new Sum();			  
	}	
} // LÕPP