character [] source = " We dont do your homework "
charater [] destination;
 
Fetch each char from the source array 
      Check if the fetched char is white space char
            if so continue the loop
      if not space char
         copy that char into destination 
 
print the destination ( with no white space in it )

text = text.replace(' ', '')

perl -pe 's/\s/g'

for each character in the string
    if the character isn't a space
        print it