Ejercicio 1

private void jbtnNuevoActionPerformed(java.awt.event.ActionEvent evt)
jtxt1.setText("");
jtxt2.setText("");
jtxt3.setText("");
jtxt4.setText("");
jtxt5.setText("");jtxaDatos.setText("");
jtxt1.requestFocus();

}

private void jbtnCalcularActionPerformed(java.awt.event.ActionEvent evt)
{
Double n1, n2, n3, n4, n5, menor, mayor;n1=Double.parseDouble(jtxt1.getText());
n2=Double.parseDouble(jtxt2.getText());
n3=Double.parseDouble(jtxt3.getText());
n4=Double.parseDouble(jtxt4.getText());n5=Double.parseDouble(jtxt5.getText());
menor=calcular_menor(n1, n2, n3, n4, n5);
mayor=calcular_mayor(n1, n2, n3, n4, n5);

MostrarDatos( menor, mayor);

}

void MostrarDatos(Double menor, Double mayor){
jtxaDatos.append("\t.......MOSTRAR DATOS........\n");

jtxaDatos.append("El menor de los numeros es \t\t: "+menor+"\n");

jtxaDatos.append("El mayor de los numero es \t\t:"+mayor+"\n");
}

private void jbtnSalirActionPerformed(java.awt.event.ActionEvent evt) {
System.exit(0);
}


Double calcular_menor(Double n1,Double n2,Doublen3,Double n4,Double n5)
{
Double a = null;

if(n1 < n2 && n1<n3 && n1<n4 && n1< n5)

a=n1;
else if (n2< n1 &&n2<n3 && n2<n4 && n2< n5 )

a=n2;
else if(n3<n2 && n3< n1 && n3<n4 && n3< n5 )

a=n3;
else if(n4<n3 && n4<n2 && n4< n1 && n4< n5)

a = n4;
else if (n5<n3 && n5<n2 && n5< n1 && n5< n4)

a=n5;return a;
}

Double calcular_mayor(Double n1,Double n2,Double n3,Double n4,Double n5)
{
Double b = null;

if(n1 > n2 && n1>n3 && n1>n4...