import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.math.*;
import java.util.*;

public class Eksam2 extends Applet implements ActionListener{

	double Korgus,Laius,Pikkus,VeeTase,Tase;
	double Maht;
	Label lblKorgus=new Label("Sügavus(m)");
	TextField txtKorgus=new TextField(5);
	Label lblPikkus=new Label("Pikkus(m)");
	TextField txtPikkus=new TextField(5);
	Label lblLaius=new Label("Laius(m)");
	TextField txtLaius=new TextField(5);
	Label lblVeeTase=new Label("Vee Hulk(m3)");
	TextField txtVeeTase=new TextField(5);
	Button Tegevus=new Button("Tee");
	Button Lisa=new Button("+");
	Button Eemalda=new Button("-");
	Label lblMess=new Label();
	boolean Joonis=false;

	public Eksam2(){
		setLayout(null);
		txtKorgus.setBounds(102,0,100,20);
		txtPikkus.setBounds(102,22,100,20);
		txtVeeTase.setBounds(102,44,100,20);
		lblKorgus.setBounds(0,0,100,20);
		lblPikkus.setBounds(0,22,100,20);
		lblVeeTase.setBounds(0,44,100,20);
		lblLaius.setBounds(0,66,100,20);
		txtLaius.setBounds(102,66,100,20);
		Tegevus.setBounds(0,88,100,20);
		lblMess.setBounds(102,88,100,20);
		Lisa.setBounds(226,44,20,20);
		Eemalda.setBounds(204,44,20,20);
		add(lblKorgus);
		add(lblPikkus);
		add(lblVeeTase);
		add(txtKorgus);
		add(txtVeeTase);
		add(txtPikkus);
		add(Tegevus);
		add(lblMess);
		add(lblLaius);
		add(txtLaius);
		add(Lisa);
		add(Eemalda);
		Tegevus.addActionListener(this);
		Lisa.addActionListener(this);
		Eemalda.addActionListener(this);
	}
	public void paint(Graphics g){
		if(Joonis){
			g.setColor(Color.blue);
			g.fillRect(20,121+(int)((Korgus*10)-(Tase*10)),(int)(Pikkus*10),(int)(Tase*10));
			g.setColor(Color.black);
			g.drawRect(20,120,(int)(Pikkus*10),(int)(Korgus*10));
		}
	}
	public void actionPerformed(ActionEvent e){
		lblMess.setText("");
		if(!txtLaius.getText().equals("") && !txtKorgus.getText().equals("") && !txtPikkus.getText().equals("") && !txtVeeTase.getText().equals("")){
			Korgus=Double.parseDouble(txtKorgus.getText());
			Laius=Double.parseDouble(txtLaius.getText());
			Pikkus=Double.parseDouble(txtPikkus.getText());
			VeeTase=Double.parseDouble(txtVeeTase.getText());
			Maht=Pikkus*Laius*Korgus;
			//action Tegevus
			if(e.getSource()==Tegevus){
				Tase=VeeTase/(Pikkus*Laius);
				if(Tase>Korgus){
					lblMess.setText("Ajab üle");
				}else{
					lblMess.setText("Teen Pildi");
					Joonis=true;
					repaint();
				}
			}
			//action Lisa
			if(e.getSource()==Lisa){
				if(Tase>=Korgus){
					lblMess.setText("Ajab üle");
				}else{
					VeeTase+=0.5;
					txtVeeTase.setText(String.valueOf(VeeTase));
					Tase=VeeTase/(Pikkus*Laius);
					lblMess.setText("Teen Pildi");
					Joonis=true;
					repaint();
				}
			}
			//action eemalda
			if(e.getSource()==Eemalda){
				if(Tase<=0){
					lblMess.setText("Vesi Otsas");
				}else{
					VeeTase-=0.5;
					txtVeeTase.setText(String.valueOf(VeeTase));
					Tase=VeeTase/(Pikkus*Laius);
					lblMess.setText("Teen Pildi");
					Joonis=true;
					repaint();
				}
			}
		}else{
			lblMess.setText("Error");
		}
	}
	public static void main(String[] args){
		Frame f=new Frame();
		f.add(new Eksam2());
		f.setSize(500,300);
		f.setVisible(true);
		f.addWindowListener(new Raamikuular());
	}
}