摘要：javascript有许多内建的方法来产生对话框，如：window.alert(), window.confirm(),window.prompt().等。 然而ie提供更多的方法支持对话框。如： showmodaldialog() (ie 4+ 支持) showmodelessdialog() (ie 5+ 支持) window.showmodaldialog()方法用来创建一个显示html......
摘要：● 按照appfuse帮助，实践实践次步时，一切都还正常，唯有最后测试时，始终不通，试了n多办法，无果。如果那位网友看到，知道结果的，烦请告知，在此先谢过了。具体的错误分析见文尾。person是基本的pojo，persondao是person的管理类，personmanager是 business facades. 这些façade用于连接前端和dao层之间的通讯。ø ......
Java Thread Programming 1.6 - Thread Prioritization
system thread priorities—jdk 1.2prioritythread name5main8finalizer10reference handler5signal dispatcher5awt-windows6awt-eventqueue-05suntoolkit.posteventqueue-04screen updater a notable change in jdk 1.2 is that the priority of the finalizer thread was increased from 1 to 8 to help ensure that the garbage collector gets more of a chance to run and free up memory. jdk1.2中finalizer线程的优先级从1升高到8,确保垃圾收集器能及时回收资源释放内存 when assigning priorities to your threads, you should consider the relative priorities of the system threads to be sure your threads don’t overwhelm their operations. by default, when a new thread is constructed, it runs at the same priority as the thread that constructed it. most new threads are constructed directly or indirectly by the main thread and will therefore run at a priority of 5. this works well under many scenarios, but there are times when you will want to raise or lower a thread’s priority. 子线程的优先级与父线程的优先级相同,大部分线程从main线程创建,所以优先级为5 there are three public static final int member variables of thread that indicate the range of priority values that can be passed to setpriority(). thread.max_prioritythread.min_prioritythread.norm_priority thread类中有三个静态优先级变量thread.max_priority,最高优先级,通常为10thread.min_priority,最低优先级,通常为1thread.norm_priority,一般优先级,通常为5 getpriority() the getpriority() method of thread returns an int representing the current priority of the thread. generally, a thread’s priority does not change over its lifetime, but it can. getpriority()返回线程的当前优先级,通常线程的优先级在其生命周期中不会变,但可以变 setpriority() the setpriority() method of thread takes an int as a parameter indicating the new priority for the thread. the setpriority() method can be invoked either before the thread is started or once it is running. some vms might allow you to change the priority of the system threads, but this is not recommended—even if it is permitted. setpriority()设置线程新的优先级,可以在线程开始前调用,也可以在线程运行中调用,有些虚拟机允许改变系统线程的优先级,但我们不推荐这么做 calls to setpriority can throw a securityexception if the calling thread is not permitted to make the priority change. this will happe...
下一页 摘要： 这一段时间在学习jdo，使用的学习资料是孙宾翻译的《java data objects 第一章 初步概览》，以及清华大学出版社出版的《jdo核心技术》。说实话，这两份学习资料的确很好，但在学习过程中还是遇到了问题，经历了不少痛苦，这里写出来供大家一笑。 首先，我想对类库进行一下说明。孙宾翻译的《java data objects 第一章 初步概览》（以下简称《jdo》）中所涉及的jdo.jar、......
