小编use*_*196的帖子

我有很长的java类和方法名

LONGGGGGGGGGGGGGGGClass.longggggggggggggggggggggggggMethod();

我想将它别名为 g.m();另一个类可以这样做吗？

我需要检测损坏的文本文件,其中存在无效(非ASCII)utf-8,Unicode或二进制字符.

�>t�ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½w�ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½o��������ï¿ï¿½_��������������������o����������������������￿����ß����������ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½~�ï¿ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½}���������}w��׿��������������������������������������ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½~������������������������������������_������������������������������������������������������������������������������^����ï¿ï¿½s�����������������������������?�������������ï¿ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½w�������������ï¿ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½}����������ï¿ï¿½ï¿½ï¿½ï¿½y����������������ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½o�������������������������}��

我试过的:

iconv -f utf-8 -t utf-8 -c file.csv 

这将文件从utf-8编码转换为utf-8编码,-c用于跳过无效的utf-8字符.然而最后这些非法字符仍然被打印出来.在linux或其他语言的bash中还有其他解决方案吗？

当java Web应用程序停止或者tomcat停止时,我需要优先保存一些数据.如何才能做到这一点？编辑:如果我使用jvm关闭钩子的任何缺点？

如何在远程linux机器上执行命令/脚本？说我想做一个服务tomcat从框a开始在框b上.

我在mysql 5.6社区版中遇到以下错误:

: Error: 
Table "mysql"."innodb_table_stats"
 not found. InnoDB: Recalculation 
of persistent statistics requested for table "mydatabase"."mytable" 
but the required persistent statistics storage is not present or is corrupted. 
Using transient stats instead.

我该如何解决这个错误？

是否有一行命令/脚本将一个文件复制到Linux上的多个文件中？

cp file1 file2 file3

将前两个文件复制到第三个文件中.有没有办法将第一个文件复制到其余文件中？

有没有办法将Android应用程序数据存储在SD卡而不是内部存储器中？我知道如何将应用程序sqlite数据库从内部存储器传输到SDCard,但是如果内部存储器首先变满了怎么办？每个人如何处理这个？

是否有任何网站能够免费发送短信？

他们是如何做到的呢？

我怎样才能以编程方式发送短信？

要将日期从字符串转换为Unix时间,我可以使用date --date "2012-02-13" +%s.

从Unix时间到字符串,我该怎么做？

var A=function(){
};

$.extend(A.prototype, {
    init:function(){
        alert('A init');
    }
});
var B=function(){

};

$.extend(B.prototype,A.prototype,{
    init:function(){
        alert('B init');
    }
});
var p=new A();
p.init();
var x=new B();
x.init();

上面是在jQuery中创建类和继承的最佳方法吗？在B的init中如何调用父的init(类似于OO语言中的super.init())？