public class DatosAlumno

public class DatosAlumno {
private double cal1,cal2,cal3;
public DatosAlumno(){
cal1=0;
cal2=0;
cal3=0;
}
public void setCal1(double cal1){
this.cal1=cal1;
}
public voidsetCal2(double cal2){
this.cal2=cal2;
}
public void setCal3(double cal3){
this.cal3=cal3;
}
public double getCal1(){
return(cal1);
}
public double getCal2(){
return(cal2);
}
publicdouble getCal3(){
return(cal3);
}
}


public class OpAlumno {
public double CalcularPromedio(DatosAlumno refD){
double prom;
prom=(refD.getCal1()+refD.getCal2()+refD.getCal3())/3;return(prom);
}
}



import java.util.Scanner;
public class MainAlumno {
public static void main(String args []){
Scanner sca= new Scanner(System.in);
double prom, cal1,cal2,cal3;DatosAlumno refD = new DatosAlumno();
OpAlumno refOp = new OpAlumno();
do{
System.out.println("ingrese la primera calificacion del examen");
cal1=sca.nextDouble();
if(cal1>=0 || cal1<=10){
refD.setCal1(cal1);
}
}while(cal1<0);
do{
System.out.println("ingrese la segundacalificacion del examen");
cal2= sca.nextDouble();
if(cal2>=0 || cal2<=10){
refD.setCal2(cal2);
}}while (cal2<0);
do{
System.out.println("ingrese la tercera calificacion del examen");
cal3= sca.nextDouble();
if(cal3>=0|| cal3<=10){
refD.setCal3(cal3);
}
}while (cal3<0);
if(refOp.CalcularPromedio(refD)>=6 )
{System.out.println("el promedio es "+refOp.CalcularPromedio(refD)+"*\t Estas aprobado");
}
else
{
System.out.println("el...