getallnamesfromfirstcatalog.java

这是一个超市管理系统

package file2;
import java.sql.*;
public class GetAllNamesFromFirstCatalog {
	private DBConnection con=null;
	private ResultSet set=null;
	public GetAllNamesFromFirstCatalog(){
		con=new DBConnection();
		set=con.executeSelect1("select First_name from First_Catalog");
	}
	public ResultSet getSet(){
		return set;
	}
}