How to Mount Mac OS X's HFS+ Partition in Ubuntu 14.04 LTS

To mount HFS+ partition, one first needs to install the necessary package:
$ sudo apt-get install hfsprogs

Next, create the mounting directory
$ sudo mkdir /media/mntpoint

Next, mount the partition
$ sudo mount -t hfsplus -o force,rw /dev/sdXY /media/mntpoint
where sdXY can be something like sda1, sda2, sda3, sdb1, sdb2, sdb3, etc.

To unmount, run the command
$ sudo umount /media/mntpoint

If you are not sure whether the exfat partition you are looking for is /dev/sda1 or /dev/sda2, then you could also run
$ sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL