How to change image permission mode to 777 using Java code?

chmod 777 777 means the file directory is granted read, write and execute permissions for all three user classes, including the owner, group members, and others.. chmod 777 makes a filefolder readable, write-able and executable by everyone. So essentially on your site folder, you have given everyone permission to write to that folder, so you have

an777 apk, The reason 777 is bad is because other gives permissions to anyone who has access to your computer: for example, if you're hacked, the hacker.