help with a little problem (java)

[felesmiki]

hi all, I am a nooby on this of the programming and i am studing java, the las program that i need to do is sort a deck of cards that I introduce, ok so, the programm works in everything (sort the cards, introduce the cards and "finish" but not how i want) but when i need to stop insert cards dont finish with the "Enter" key (for testing it finish with "f") and here is my problem.
How can I do for finish insert cards??
here is the programm

import java.util.*;
public class Cartas {
    public static void main (String arcs[]){
        java.util.Scanner carta = new java.util.Scanner(System.in);
        ArrayList cartas = new ArrayList();
        int punteroA = 0;
        int punteroB;
        while(true){
            String pedida = carta.next();
            if(!(pedida.equals("f"))){ //here should be "enter" key instead of "f" (end//\\fin)
            cartas.add(pedida);
            }else{
                break;
            }
        }
        while(punteroA<cartas.size()){
            boolean borrarpunteroA = false;
            punteroB = punteroA + 1;
            while(punteroB<cartas.size()){
                String A = (String) cartas.get(punteroA);
                String B = (String) cartas.get(punteroB);
                A =  A.substring(0, A.length()-1);
                B =  B.substring(0, B.length()-1);
                if(A.equals(B)){
                    cartas.remove(punteroB);
                    borrarpunteroA = true;
                }else{
                    punteroB++;
                }
            }
            if(borrarpunteroA){
                cartas.remove(punteroA);
            }else{
            }
            punteroA++;
        }
        String cartasnorep [] = new String [10];
        int z = 0;
        while(z < cartas.size()){
            String variable = (String) cartas.get(z);
            String concateno;
            switch(variable.substring(variable.length()-1, variable.length())){
                case "o": if(variable.length()==2){
                    concateno = "10" + variable;
                }else{
                    concateno = "1" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                case "c": if(variable.length()==2){
                    concateno = "20" + variable;
                }else{
                    concateno = "2" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                case "e": if(variable.length()==2){
                    concateno = "30" + variable;
                }else{
                    concateno = "3" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                case "b": if(variable.length()==2){
                    concateno = "40" + variable;
                }else{
                    concateno = "4" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                default:
                    break;
        }
            z++;  
    }
        for(int j = cartas.size(); j<cartasnorep.length; j++){
            cartasnorep[j]="999";
        }
        Arrays.sort(cartasnorep);
        int i = 0;
        for (i=0; i<=cartas.size()-1 ;i++){
            String valor = cartasnorep[i];
            char valor2 = valor.charAt(1);
            String valor3 = Character.toString(valor2);
            if(valor3.equals("0")){
               valor = valor.substring(valor.length()-2, valor.length());
               System.out.print(valor + " ");
            }else{
               valor = valor.substring(valor.length()-3, valor.length());
               System.out.print(valor + " ");
            }
             
        }
    }
}

my problem is that, the while in this moment is finished with "f" but i want that it finish with enter key

[Pappschachtel]

put your code in code tags ...
plus i don't even understand your problem.

[Tamschi]

"\n"

instead of

"f"

maybe.

"\r"

[I]can[/I] appear too (but doesn't have to) so just ignore that.
(It happens automatically due to

default:
    break;

already, so you don't need to do anything in particular.)

I don't know the Java library and whatever language the identifiers are in well enough for more than a guess.

[felesmiki]

ok its done and finished, thanks for all :)

import java.util.*;
public class Cartas {
    public static void main (String arcs[]){
        java.util.Scanner carta = new java.util.Scanner(System.in);
        ArrayList cartas = new ArrayList();
        int punteroA = 0;
        int punteroB;
        String pedida = carta.nextLine();//recogemos la linea entera
        int x=0;
        boolean leer  = true;
        String cartanumero = "";
        while(x<pedida.length()){//recorremos la longitud de la cadena de cartas
            char valor11 = pedida.charAt(x); //recogemos el primer valor convertido a char
            String valor12 = Character.toString(valor11); // pasamos el char a string
            if(!(valor12.equals(" "))){//si el primer valor de la cadena es distinto de " " entramos y guardamos el primer valor que haya
                cartanumero = cartanumero + valor12; //vamos descomponiendo la cadena `para sacacr todas las cartas
                if(x==pedida.length()-1){// cuando llegamos al final cambiamos el valor de leer para asi guardar la ultima carta
                    leer=false;
                }
            }else{
                leer=false;
            }
            if(!(leer)){//vamos agregando las cartas a la arraylist
                cartas.add(cartanumero);
                cartanumero = "";
                leer=true;
            }
            x++;
        }
        while(punteroA<cartas.size()){//el puntro A apunta a la primera posicion del arraylist
            boolean borrarpunteroA = false;
            punteroB = punteroA + 1; // creamos un puntero B que apunte a la posicion siguiente del anterior
            while(punteroB<cartas.size()){
                String A = (String) cartas.get(punteroA);
                String B = (String) cartas.get(punteroB);
                A =  A.substring(0, A.length()-1);
                B =  B.substring(0, B.length()-1);
                if(A.equals(B)){ //coparo las cartas de los punteros para ver si son iguales o no
                    cartas.remove(punteroB);
                    borrarpunteroA = true;//si son iguales se remueven la carta b
                }else{
                    punteroB++;
                }
            }
            if(borrarpunteroA){
                cartas.remove(punteroA);//en caso de k hayan sido iguales se remieve la carta a
            }else{
            }
            punteroA++;
        }
        String cartasnorep [] = new String [10];//creo un array para orednar las cartas
        int z = 0;
        while(z < cartas.size()){
            String variable = (String) cartas.get(z);
            String concateno;
            switch(variable.substring(variable.length()-1, variable.length())){//se añaden 1/10-2/20-3/30-4/40 dependiendo del palo y la ongitud k tenga
                case "o": if(variable.length()==2){
                    concateno = "10" + variable;
                }else{
                    concateno = "1" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                case "c": if(variable.length()==2){
                    concateno = "20" + variable;
                }else{
                    concateno = "2" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                case "e": if(variable.length()==2){
                    concateno = "30" + variable;
                }else{
                    concateno = "3" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                case "b": if(variable.length()==2){
                    concateno = "40" + variable;
                }else{
                    concateno = "4" + variable;
                }
                cartasnorep[z] = concateno;
                break;
                    
                default:
                    break;
        }
            z++;  
    }
        for(int j = cartas.size(); j<cartasnorep.length; j++){//añado valores de +500 hasta llenar el array
            cartasnorep[j]="999";
        }
        Arrays.sort(cartasnorep);//ordena el array
        int i;
        String valor;
        char valor2;
        String valor3;
        for (i=0; i<cartas.size() ;i++){//imprime las cartas ordenadas y comprueba si tiene un 0 o no
            valor = cartasnorep[i];
            valor2 = valor.charAt(1);
            valor3 = Character.toString(valor2);
            if(i<cartas.size()-1){
                if(valor3.equals("0")){
                    valor = valor.substring(valor.length()-2, valor.length());
                    System.out.print(valor + " ");
                }else{
                    valor = valor.substring(valor.length()-3, valor.length());
                    System.out.print(valor + " ");
                }
            }else if(i<cartas.size()){
                if(valor3.equals("0")){
                    valor = valor.substring(valor.length()-2, valor.length());
                    System.out.println(valor);
                }else{
                    valor = valor.substring(valor.length()-3, valor.length());
                    System.out.println(valor);
                }
            }
        }
    }
}