neau火车

摘要：public class Something { private Something() { } private static class LazyHolder { public static final Something INSTANCE = new Something(); } public static Something getInstance() { return LazyHolder.INSTANCE; }}这样的懒汉单例模式的实现，... 阅读全文

摘要：CentOS的yum源中没有git，只能自己编译安装，现在记录下编译安装的内容，留给自己备忘。确保已安装了依赖的包yum install curlyum install curl-develyum install zlib-develyum install openssl-develyum install perlyum install cpioyum install expat-develyum install gettext-devel下载最新的git包wget http://www.codemonkey.org.uk/projects/git-snapshots/git/git-late 阅读全文