Here you can find the source of close(Connection conn, PreparedStatement ps, ResultSet rs)
public static void close(Connection conn, PreparedStatement ps, ResultSet rs)
//package com.java2s; //License from project: Open Source License import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class Main { public static void close(Connection conn, PreparedStatement ps, ResultSet rs) { if (rs != null) { try { rs.close();//w w w.j a v a 2 s . c o m } catch (SQLException e) { e.printStackTrace(); } } if (ps != null) { try { ps.close(); } catch (SQLException e) { e.printStackTrace(); } } if (conn != null) { try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } } }