Can't retrieve Employee_Name + Total Gross Income (3 replies)

String str = "select  e.Employee_Name, sum(i.Subincome)  from employee e RIGHT  JOIN income i "
 + "ON e.Employee_ID = i.Employee_ID "  + " where e.Employee_ID = "
 + emp_id + " group by e.Employee_Name";

pst = conn.prepareStatement(str);
rs = pst.executeQuery();
             
Employee_Name = rs.getString(1);
totalIncome = rs.getBigDecimal(2);

java.sql.SQLException: Before start of result set
	at com.mysql.jdbc.ResultSet.checkRowPos(ResultSet.java:3624)
	at com.mysql.jdbc.ResultSet.getString(ResultSet.java:1762)
	at edica.CDatabase.calculateTotalIncome(CDatabase.java:368)