Question

Am doing a simple android application.In that I am deleting an element from array using the following code.

 arr_fav = {"1","2","3"};
 for(int i= 0;i<arr_fav.length;i++)
 {
     if(current_id == Integer.parseInt(arr_fav[i]))
     {
        arr_fav[1] = null;
     } }

By doing this am getting the array like arr_fav = {“1″,null,”3”}.But I want like arr_fav = {“1″,”3”}.How to delete an element.Am new to this android development.Please help me to solve this.

Answer 1

its better to use arraylist

arr_fav = {"1","2","3"};
List<String> numlist = new ArrayList<String>();
for(int i= 0;i<arr_fav.length;i++)
{
 if(current_id == Integer.parseInt(arr_fav[i]))
 {
   // No operation here 
 }
 else
 {
     numlist.add(arr_fav[i]);
 }
}
 arr_fav = numlist .toArray(new String[numlist .size()]);