During programming I have to often select a whole word and make delete it. I am doing this by double click in mouse, but i prefer do it by keyboard - it is possible?
As already mentioned, removing the word to the left/right is done with ctrl+backspace and ctrl+delete.
There is also ctrl+h, which selects the word under the cursor. May also be handy if you want to delete it. But originally, ctrl+h was added as search for word under cursor (i.e., pressing ctrl+h again will jump to the next instance).