java oracle data access issues

The database is stored in a field "/ /" , the program is taken out of "/ / / / " how is it ? Which god know tell brother , be grateful !
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you should still print out / /
/ transition symbol
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not very clear
ORACLE forward slash ( / ) The role of the forward slash ( / ) : In Oracle, to terminate the SQL statement.
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"/" is an illegal character , java obtained illegally characters need to be escaped with a "/" escape , you have two values ​​"/" , you need two escape character " / ", so you can see a total of four " / ", but print out just " / / " , the escape character is not displayed
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http://baowand6203.blog.163 .com/blog/static/17103196420097313551791 /
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transfer diagonals direction seems wrong Oh