Warning: [unchecked] unchecked conversion.. how to avoid this warning?

Question

Hi all,
When i compile my java file, i get this warning.
Z:\webapps\I2SG_P2\WEB-INF\classes\com\i2sg>javac testwincDB.java
Note: testwincDB.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Z:\webapps\I2SG_P2\WEB-INF\classes\com\i2sg>javac -Xlint testwincDB.java
testwincDB.java:15: warning: [unchecked] unchecked conversion
found   : java.util.ArrayList
required: java.util.ArrayList<java.lang.String[]>
    ArrayList <String[] > recRep2 = dbh.getReconReport2(projID);My functions are:
public ArrayList getReconReport2(int projID)
        ArrayList <String[] > recRep2 = new ArrayList <String[] > ();
        String getReconReportQuery2 = "select recon_count FROM i2sg_recon1 WHERE PROJECT_ID = " + projID;
        int i=0;
        try {
        resultSet = statement.executeQuery(getReconReportQuery2);
              while (resultSet.next())
                     recRep2.add(new String[1]); // 0:RECON_COUNT
            ((String []) recRep2.get(i))[0] = resultSet.getString("RECON_COUNT");
                     i++;
              resultSet.close();
              } catch (Exception ex)
            ex.printStackTrace(System.out);
        return recRep2;
    }and
import java.sql.*;
import java.util.ArrayList;
import java.util.*;
public class testwincDB
    public static void main(String args[])
    int projID=8;
    wincDB dbh = new wincDB();
    ArrayList <String[] > recRep2 = dbh.getReconReport2(projID);
    int totalRec = recRep2.size();
     for(int i=0;i<totalRec;i++)
    System.out.println(((String []) recRep2.get(i))[0]);
}Thanks in advance,
Lakshma

Answer 1

found : java.util.ArrayList
required: java.util.ArrayList<java.lang.String[]>
ArrayList <String[] > recRep2 = dbh.getReconReport2(projID);This tells all about the warning.....
public ArrayList getReconReport2(int projID)change it to:
public ArrayList<String[]> getReconReport2(int projID)Thanks!
Edit: Very late.... :-)
Edited by: T.B.M on Jan 15, 2009 7:20 PM