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Found 1 result

  1. breaststroke

    comparing length of Strings

    Hello, I am trying to comprehend how to compare the length between Strings.i have the following, to compare the length of 10 countries inserted by the user. It also orders them from lowest to highest: public void load() { teclado=new Scanner(System.in); paises=new String[10]; for(int f=0;f<paises.length;f++) { System.out.print("Ingrese el nombre del pais:"); paises[f]=teclado.next(); } } public void ordenar() { for(int k=0;k<9;k++) { for(int f=0;f<9-k;f++) { if (paises[f].compareTo(paises[f+1])>0) { String aux; aux=paises[f]; paises[f]=paises[f+1]; paises[f+1]=aux; } } } } When I use the same method with numbers it works. For instance: public void ordenar() { for(int k=0;k<9;k++){ for(int f=0;f<9-k;f++) { if (vec[f+1]<vec[f]) { int aux; aux=vec[f]; vec[f]=vec[f+1]; vec[f+1]=aux; } } } } So I deduce maybe : if (paises[f].compareTo(paises[f+1])>0) is not correct, because it's the only difference comparing it to the method on numbers.Is there any other way to compare the length between Strings? thank you in advance. p.s I took it from a tutorial which has been working fine till now. I have even checked the "compareTo" on other sites and it seems to be appropriate but I don't know why it's not working here. I would appreciate any help.
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