help with java code

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help with java code

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Enter the data of n students (cut with "end *"). The course can be A or B. Name, course, grade, sex, age. Calculate and print:

Number of approved students (approved with 6), per course.

Number of students postponed, per course.

Average age, general and by course.

Average grade of male students, per course. Show results on the screen using windows through the JOptionPane class.

I DO NOT KNOW HOW TO PRINT THE RESULTS BY WINDOW (jOPTIONPANE) AND CREATE THE COURT "END" WITH A QUESTION.

package tp; import java.util.Scanner; public class data {public static void main (String [] args) {

int i, edadA=0, edadB=0, cantA=0,cantB=0,edadG=0,notVA=0,notVB=0,cantVA=0,cantVB=0;
double predadA, predadB,predadG,prnotVA,prnotVB;
int notA=0, notB=0, cantaprA=0, cantaprB=0,cantaplA=0,cantaplB=0,canteG=0;

int nota[]; 
nota = new int[8];

String nombre[];
nombre = new String[8]; 

String curso[];
curso = new String[8]; 

String sexo[];
sexo = new String[8];

int edad[]; 
edad = new int[8];

Scanner input = new Scanner(System.in);

for(i=0;i<8;i=i+1)
            {
System.out.printf("Ingrese nombre alumno %d: ",i+1 ); 
nombre[i] = input.next();
System.out.printf("Ingrese curso alumno ( A/B) %d: ",i+1 ); 
curso[i] = input.next();
System.out.printf("Ingrese nota alumno %d: ",i+1 ); 
nota[i] = input.nextInt();
System.out.printf("Ingrese sexo alumno (F/M) %d: ",i+1 ); 
sexo[i] = input.next(); 
System.out.printf("Ingrese edad alumno %d: ",i+1 ); 
edad[i] = input.nextInt();

// EDAD PROMEDIO GENERAL

edadG=edadG+edad[i];
canteG=canteG+1;

// EDAD PROMEDIO POR CURSO

if (curso[i].equals("a")|| curso[i].equals("A") ){ 
    edadA= edadA+edad[i];
    cantA=cantA+1;     }

  else { 
      edadB=edadB+edad[i];
      cantB=cantB+1;   }

// APROBADOS POR CURSO

if (nota[i]>=6){
      if ( curso[i].equals ("a")|| curso[i].equals ("A")){
      notA=notA+nota[i];
      cantaprA=cantaprA+1;    }

      else {
      notB=notB+nota[i];
      cantaprB=cantaprB+1;  }

}

// APLAZADOS POR CURSO

if (nota[i]<6){ 
      if ( curso[i].equals ("a")|| curso[i].equals ("A")){ 
      notA=notA+nota[i];
      cantaplA=cantaplA+1;
}
else { 
      notB=notB+nota[i];
      cantaplB=cantaplB+1;
}
}

// NOTA PROMEDIO VARONES POR CURSO

if (sexo[i].equalsIgnoreCase("m")) {

    if (curso[i].equalsIgnoreCase("a"))
    {
         notVA=notVA+nota[i];
         cantVA=cantVA+1;
    }else { 
           notVB=notVB+nota[i]; 
           cantVB=cantVB+1;   
}
}                      
    }   // aca termina el for

               // imprimir calculos

    predadG=edadG/canteG;   
    System.out.print( "El promedio general de edad es: " + predadG + "\n" );

    predadA=edadA/cantA;
    System.out.print( "El promedio de edad del curso A es: " + predadA + "\n" );

    predadB=edadB/cantB;
    System.out.print( "El promedio de edad del curso B es: " + predadB + "\n");

    System.out.print( "La cantidad de alumnos aprobados en el curso A es de: " + cantaprA+ "\n");

    System.out.print( "La cantidad de alumnos aprobados en el curso B es de: " + cantaprB+"\n");

    System.out.print( "La cantidad de alumnos aplazados en el curso A es de: " + cantaplA+"\n");

    System.out.print( "La cantidad de alumnos aplazados en el curso B es de: " + cantaplB+"\n");

    prnotVA=notVA/cantVA; 
    System.out.print( "El promedio de alumnos varones en el curso A es de: " + prnotVA+"\n");


    prnotVB=notVB/cantVB;
    System.out.print( "El promedio de alumnos varones en el curso B es de: " + prnotVB+"\n");

} }

java

asked by Adriana Fernandez 26.06.2018 в 21:36

source

1 answer

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score 0 · Answer 1

Since the number of students is "n" I would advise you to use ArrayList, to be able to make them dynamic. For the ArrayList, you could create a class of student type, with the parameters you need, and in the class where you do the calculations you create an ArrayList of type "Student".

ArrayList<Estudiante> estudiantes = new ArrayList<Estudiante>();


String nombre = "";

while(!nombre.equals("fin")){
        System.out.printf( "Ingrese nombre alumno %d\t",i+1 );            
        nombre = input.next();
        System.out.printf( "Ingrese curso alumno %d\t",i+1 ); 
        String curso = input.next();
        System.out.printf( "Ingrese nota alumno %d\t",i+1 ); 
        int nota = input.nextInt();
        System.out.printf( "Ingrese sexo alumno %d\t",i+1 ); 
        String sexo = input.next(); 
        System.out.printf( "Ingrese edad alumno %d\t",i+1 ); 
        int edad = input.nextInt();

estudiantes.add(new Estudiante(nombre, curso, nota, sexo, edad);
}