java - How to calculate how many items will fit in a box using MOD? -


so trying finish school project stuck in last process. need print total price , amount of boxes , price of each. user needs input how many bags of coffee wants, each bag costs 1000, , there 3 boxes pack them in, large box fits 20 bags, medium box fits 10 bags , small box fits 5 bags of coffee. each box costs 5000,3000 , 1000 respectively. know need use mod determine how many go in each box honest dont know start! help? i've done far, having issues case d. 

import java.util.scanner;  public class operaciones{   string opcion="";   int num;   int d=2;    scanner sc=new scanner(system.in);   public operaciones(){}    public void opciones(){      string menuprincipal=("seleccione lo que desea hacer: "                             +"\n a- factores primos"                             +"\n b- imprimir patron"                             +"\n c- signo zodiacal"                             +"\n d- calcular pedido"                             +"\n e- salir");     do{       system.out.println(menuprincipal);       opcion=sc.next();        switch(opcion) {         case "a":         case "a":           system.out.println("factores primos: por favor ingrese un numero");           num=sc.nextint();           system.out.println("los factores primos del numero ingresado son:");            while(num!=1){             if(num%d==0){                system.out.println(d+"");               num=num/d;             }else{               d=d+1;             }           }           break;         case "b":         case "b":           system.out.println("patron de 10 49");           for(int = 10; <= 49; i++){             system.out.println(i+);           }           break;         case "c":         case "c":           string mes;           int dia=0;           system.out.println("tu signo zodiacal");           system.out.println("en que mes naciste?");           mes=sc.next();           system.out.println("en que dia naciste?");           dia=sc.nextint();           if((mes.equals("enero"))||(mes.equals("enero"))){             if(dia>0 && dia<=20){               system.out.println("tu signo zodiacal es capricornio");             }else{               system.out.println("tu signo zodiacal es acuario");             }           }           if((mes.equals("febrero"))||(mes.equals("febrero"))){             if(dia>0 && dia<=19){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("marzo"))||(mes.equals("marzo"))){             if(dia>0 && dia<=20){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("abril"))||(mes.equals("abril"))){             if(dia>0 && dia<=20){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("mayo"))||(mes.equals("mayo"))){             if(dia>0 && dia<=20){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("junio"))||(mes.equals("junio"))){             if(dia>0 && dia<=21){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("julio"))||(mes.equals("julio"))){             if(dia>0 && dia<=22){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("agosto"))||(mes.equals("agosto"))){             if(dia>0 && dia<=21){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("setiembre"))||(mes.equals("setiembre"))){             if(dia>0 && dia<=23){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("octubre"))||(mes.equals("octubre"))){             if(dia>0 && dia<=23){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("noviembre"))||(mes.equals("noviembre"))){             if(dia>0 && dia<=22){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           if((mes.equals("diciembre"))||(mes.equals("diciembre"))){             if(dia>0 && dia<=22){               system.out.println("tu signo zodiacal es acuario");             }else{               system.out.println("tu signo zodiacal es piscis");             }           }           break;         case "d":         case "d":           double bolsas=0;           double cg=5000;           double cm=3000;           double cp=1000;           double precioxb=1000;           double preciobolsas=0;           system.out.println("cuantas bolsas desea ordenar?");           bolsas=sc.nextint();           preciobolsas=bolsas*precioxb;        }     }while(opcion!="e");       } }


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