java一些例子，包括从键盘接收输入字符串，并将其转换成整数的例子，产生一个随机数的例子-java examples include receiving input from the keyboard strings, and converting it into integer example, Generate a random number of examples, etc.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001248s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.078383s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001078s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001152s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000984s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004179s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000825s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004126s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.047924s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.022912s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 46843 [ RunTime:0.041651s ]
