how to end edit vim .bash_profile code example

Example 1: vi save and exit

//Save
:w
//Exit
:q

Example 2: how to exit vim

#Press 'Esc' to change from Edit Mode to Command Mode
#Exit
:q
#Force quit without saving
:q!
#Save file and quit
:wq

Example 3: vi write and exit

wq // write and quit