import javax.swing.JOptionPane;
public class JOptionPane{
  public static void main (String[] args){
String bi1 =
                JOptionPane.showInputDialog("Digite a nota do 1° bimestre" );
        String bi2 =
                JOptionPane.showInputDialog ("Digite a nota do 2° bimestre");
        String bi3 =
                JOptionPane.showInputDialog ("Digite a nota do 3° bimestre");
        String bi4 =
                JOptionPane.showInputDialog ("Digite a nota do 4° bimestre");

    double b1 = Double.parseDouble(bi1);
    double b2 = Double.parseDouble(bi2);
    double b3 = Double.parseDouble(bi3);
    double b4 = Double.parseDouble(bi4);

    double media = ((b1 *2) + (b2 * 2) + (b3 * 3) + (b4 * 3))/10;




                                       //O que aparece dentro  //nome da janela
    JOptionPane.showMessageDialog(null, "Sua média é : " + media, "Média Final", JOptionPane.PLAIN_MESSAGE);
}
}