string cannot be cast to integer

Question

I am new to using shared preferences and on my first try im getting errors that don't make sense to me. I assign a value like this:

int saveScore = sp.getInt("SAVE_SPOT",0); //This is intentional to get the 
                                          //default value of 0 to go to case 0


switch(saveScore){
     case 0:
           SharedPreferences.Editor edit1 = sp.edit();
           edit1.putInt("SCORE_1", score);
           edit1.putInt("SAVE_SPOT", 1);
           edit1.commit();
           break;
    case 1:
           int previous_score = sp.getInt("SCORE_1",0); // error happens here
           if(sp.getInt("SCORE_1",0)>score){

            SharedPreferences.Editor edit2 = sp.edit();
            edit2.putInt("SCORE_2", score);
            edit2.putInt("SAVE_SPOT", 2);
            edit2.commit();

             }
            else{

             SharedPreferences.Editor edit3 = sp.edit();
             edit3.putInt("SCORE_2", previous_score);
             edit3.putInt("SCORE_1", score);
             edit3.putInt("SAVE_SPOT", 1);
             edit3.commit();
                        }

        break;

Every time i run the program i get the error "string cannot be cast to integer". I am almost 99% sure the variable score is an int and not a string but I am not sure why i am getting this error.

The exception is thrown at putInt correct? Where are you assigning score? — eski
the exception is on the getInt line. score is a variable that is updated as a button is pressed and then outside of the on click listener is where the shared preferences code is — ez4nick

Dan Bray Dan Bray · Accepted Answer · 2013-06-29T00:50:26

You can check to make 100% it is an int by using this function:

public static boolean IsInteger(String s)
{
   if (s == null || s.length() == 0) return false;
   for(int i = 0; i < s.length(); i++)
   {
       if (Character.digit(s.charAt(i), 10) < 0)
           return false;
   }
   return true;
}

If putInt won't work, you could use Integer.parseInt( instead.

string cannot be cast to integer

3 Answers