Question

i have try to develop count the value is displayed on my apache-tomcat console window.
here am using following code:

public class RetailerWs {
 public int data(){
int count=0;

count++;

try{
    Class.forName("com.mysql.jdbc.Driver");
    Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/pro","root","");

    PreparedStatement statement =  con.prepareStatement("select * from orders where status='Q' AND date=CURDATE()");
     ResultSet result = statement.executeQuery();


}

      catch(Exception exc){
      System.out.println(exc.getMessage());
      }


    return count;
       }

        }

my another class is:

  public class Demo {
  public static void main(String[] args){
    RetailerWs obj = new RetailerWs();
    System.out.println(obj.data());
   }

  }

In my database have 2 values are matched above query.but the output is displayed is always 1.why dis error is occurred here.please help me what loop condition is am used here.give me some solutions.

Answer 1

You aren’t actually looking at the results of your query. count is 1 because of the count++ earlier in the code.

You need something like:

while(result.next()) {
    // Do something with the row returned.
    // e.g. count += result.getInt[1]; if the first col is a count.
}