Altas Bajas y Concultas

Melissa Cambre Paulin y Erick Ballesteros

import java.util.*;

class principal

 {

                public static void main(String []args)

                  {

                      ArrayList <objs> arrayobjs = new ArrayList <objs> () ;

                      objs aux = new objs();

          char opcmenu = 's';

          int opcion = 0;

          while (opcmenu == 's')

             {

                                                    System.out.println("\n\t 1 Altas");

System.out.println("\n\t 2 Bajas");

 System.out.println("\n\t 3 Cambios");

 System.out.println("\n\t 4 Consultas");

 System.out.println("\n\t 5 Desplegar ordenados");

 System.out.println("\n\t 6 Salir");

 System.out.print("\n\t Teclea la opcion deseada ");

 opcion = Leer.datoInt();

 if (opcion < 1 || opcion > 6 )

                System.out.println("Opcion incorrecta teclea nuevamente");

                                                                else

                    if (opcion == 1)

                      {

                         objs aux2 = new objs();

                         aux2.altas();

                         arrayobjs.add(aux2); 

                          }   

                   else

                      if (opcion == 2)

                         aux.bajas(arrayobjs);

                      else

                         if (opcion == 3)

                            aux.cambios(arrayobjs);

                         else

                            if (opcion == 4)

                              aux.consultas(arrayobjs);

                            else

                               if (opcion == 5)

                                  aux.ordenar(arrayobjs);

                               else

                                  if (opcion == 6)

                                     opcmenu = 'n';                         

             } 

      }

  }

import java.util.*;

class objs

   {

       private int clave;

       private String titulo;

       private int costo;

       public void altas()

          {

             System.out.println("Teclea la clave ");

             clave = Leer.datoInt();

             System.out.println("Teclea el titulo ");

             titulo = Leer.dato();

             System.out.println("Teclea el costo ");

             costo = Leer.datoInt();

          }

       public void bajas(ArrayList <objs> aobjs)

          {

                int cla = 0, i = 0;

                char opcb = ' ', existe = 'n';

                                                               objs aux = new objs();

                System.out.println("Teclea la clave a borrar ");

                                                               cla = Leer.datoInt();

                for(i=0; i < aobjs.size(); i++)

                                                                 {

                                                                    aux = aobjs.get(i);

                                                        if (aux.clave == cla)

                                                                      {   

                         existe = 's';

                                                                                   System.out.println(aux.titulo);

                                                                                   System.out.println(aux.costo);

                                                                                   System.out.println("Es el objeto a borrar ");

                                                                                   opcb = Leer.datoChar();

                         if (opcb == 's')

                            {

                                                                                       aobjs.remove(i);

                             System.out.println("Se borra ");

                            }

                         else

                                                                                   System.out.println("No se borra ");

                         break;

                                                                      }

                   }

                if(existe == 'n')

                  System.out.println("No existe");  

          }

       public void cambios(ArrayList <objs> aobjs)

          {

            int cla = 0, ocam = 0;

            char opcb = ' ', existe = 'n', concam = 's';

                                               objs aux = new objs();

            String ctitulo = "";

            System.out.println("Teclea la clave a cambiar");

                                               cla = Leer.datoInt();

            for(int i = 0; i < aobjs.size(); i++)

                                                 {

                                                    aux = aobjs.get(i);

                                                    if (aux.clave == cla)

                                                                  {   

                      existe = 's';

                      while (concam == 's')

                         {

                                                               System.out.println("1  " + aux.titulo);

                                                                                      System.out.println("2  " + aux.costo);

                                                                                      System.out.println("Teclea el dato a cambiar ");

                                                                                      ocam = Leer.datoInt();

                            if (ocam == 1)

                              {

                                                            System.out.println("Teclea el titulo ");

                                                                aux.titulo = Leer.dato();                            

                              }

                            else

                              if (ocam == 2)

                                {

                                                              System.out.println("Teclea el costo ");

                                                                  aux.costo = Leer.datoInt();                                     

                                }

                                                       System.out.println("Desea cambiar otro dato ");

                                                           concam = Leer.datoChar();

                         }                              

                      aobjs.set(i,aux);  

                      break;

                                                                  }

              }

            if(existe == 'n')

               System.out.println("No existe");               

          }

       public void consultas(ArrayList <objs> aobjs)

          {

                int cla = 0, i = 0;

                char opcb = ' ', existe = 'n';

                                                               objs aux = new objs();

                System.out.println("Teclea la clave a consultar ");

                                                               cla = Leer.datoInt();

                for(i=0; i < aobjs.size(); i++)

                                                                 {

                                                                    aux = aobjs.get(i);

                                                        if (aux.clave == cla)

                                                                                 {   

                         System.out.println(aux.titulo);

                                                                                   System.out.println(aux.costo);

                         break;

                       }

                  }

                if(aobjs.size() == i)

                  System.out.println("No existe");

         }

       public void ordenar(ArrayList <objs> aobjs)

          {

            objs aux=new objs();

                                               objs aux2=new objs();

                                   System.out.println("\n\n");

                                               for(int i=0;i<aobjs.size();i++)

                                                  {

                                                    for(int o=0;o<aobjs.size()-1;o++)

                                                       {

                                                                      if(aobjs.get(o).clave > aobjs.get(o+1).clave)

                                                                        {

                                                                                                              aux=aobjs.get(o);

                                                                                                              aux2=aobjs.get(o+1);

                                                                                      aobjs.set(o,aux2);      

                                                                                      aobjs.set(o+1,aux);                                                                   

                                                                                   }

                                                                   }

                                                  }

                                               for(int i=0;i<aobjs.size();i++)                                              

                                                               System.out.println(aobjs.get(i).clave + "  " + aobjs.get(i).titulo + "  " + aobjs.get(i).costo);

                     }        

    }