How bubble sort works and provide example?

Bubble sort work by comparing values of two numbers and then swapping them if they are in the wrong order until no more swapping can be done.

procedure bubbleSort( A : list of sortable items ) defined as:
do
swapped := false
for each i in 0 to length(A) - 1 inclusive do:
if A[i] > A[i+1] then
swap( A[i], A[i+1] )
swapped := true
end if
end for
while swapped
end procedure