What is the difference between Statement and PreparedStatement interface?

Question

public class example 
{
     int i[] = {0};
         public static void main(String args[])
    {
         int i[] = {1};
          change_i(i);
          System.out.println(i[0]);
      }
      public static void change_i(int i[]) 
       {
         i[0] = 2;
         i[0] *= 2;
      }
}

Answer 1

Statement
Use the for general-purpose access to your database. Useful when you are using static SQL statements at runtime. The Statement interface cannot accept parameters.
PreparedStatement
Use the when you plan to use the SQL statements many times. The PreparedStatement interface accepts input parameters at runtime.