Question

I created this method, but when i try to call the method it returns a null pointer exception. Can anybody tell me what’s wrong? help me please

public Talent SearchTalentQuery(int talentID){
    String SearchTalentString = "SELECT * FROM TALENT WHERE TALENTID = "+talentID+";";
    Talent talent=null;
    try{
        //error in select query
        if(getOracleXEConnection()!=null){

            Statement statement = conn.createStatement();
            ResultSet rs = statement.executeQuery(SearchTalentString);                       
                   while( rs.next()){
                   talent.setTalentName(rs.getString("talentname"));
                   talent.setTalentFocus(rs.getString("maintalentfocus"));
                   talent.setTalentNationality((rs.getString("nationality")));
                   talent.setTalentGroup(rs.getString("talentgroup"));
                   talent.setTalentHiredate(rs.getString("hiredate"));
                   talent.setTalentAge(Integer.parseInt(rs.getString("age")));
                   talent.setTalentID(Integer.parseInt(rs.getString("talentid")));
                   }

            rs.close();
            statement.close();
            conn.close();


            return talent;
        }
        else{
            return null;
        }
    }
    catch(SQLException | NumberFormatException e){
        e.printStackTrace();
    }
    return null;

Answer 1

Because your whole code does not initialize memory for talent object. you need to initialize memory for talent object.

use:
Talent talent= new Talent();
at the place of
Talent talent = null;

It might solve your problem.