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:0.002270s ]
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:0.091974s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002328s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001955s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002286s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004039s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002476s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003294s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015085s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.003318s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 46843 [ RunTime:0.001428s ]
