javafx是一款比较新兴的语言框架,随着javafx越来越实用,估计许多程序员也会慢慢接触它,故我在这里对它由浅到深进行介绍一下. 首先,要了解javafx,就应该先知道.xml文件的布局软件,以往java都是通过敲代码来进行布局的,但javafx有力新的突破,它实现了拖动方式,目前我使用的辅助软件是JavaFX Scene Builder 2.0,故这一篇文章我主要首先介绍一下JavaFX Scene Builder 2.0这款软件,希望对大家有所帮助. 打开JavaFX Scene Bui…
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxx...}: java.lang.IllegalStateException: Couldn't read row 0, col -1 from CursorWindow. Make sure the Cursor is initialized correctly before accessing data from it. 要检查列名拼写!列名拼写…
Procedure & Function Procedure 语法: CREATE [DEFINER = { user | CURRENT_USER }] PROCEDURE sp_name ([proc_parameter[,...]]) [characteristic ...] routine_body proc_parameter: [ IN | OUT | INOUT ] param_name type type: Any valid MySQL data type characteri…