The 's' replaces 1 Area match at a time but the 's+' replaces the whole space sequence at once with the 2nd parameter.
Having said that x.replaceAll("s+", ""); will probably be a lot more productive means of trimming Areas (if string may have many contiguous spaces) due to the fact of probably considerably less no of replacements owing the to incontrovertible fact that regex s+ matches one or even more Areas without delay and replaces them with empty string.
so "indent" specifies the amount Room to allocate for your string that follows it within the parameter record.
This is especially important for members of our Group who will be inexperienced persons, instead of familiar with the syntax. On condition that, is it possible to edit your response to include an evidence of That which you're executing and why you think it is the greatest tactic?
This is rather regular error-examining code for a Python script that accepts command-line arguments.
The difference lies in the way it get's taken care of. For those who would've a bunch of (as an example) 3 Areas right subsequent one another s+ usually takes that group and website turns The complete it into a "", while s would proces each individual House on its own.
cnicutarcnicutar 182k2626 gold badges376376 silver badges398398 bronze badges Include a remark
And because your 2nd parameter is empty string "", there is absolutely no distinction between the output of two conditions.
Andrew HareAndrew Hare 351k7575 gold badges645645 silver badges641641 bronze badges 3 fifteen Observe that this sort of string interpolation is deprecated in favor of the greater highly effective str.format method.
The width just isn't specified in the structure string, but as a further integer worth argument previous the argument that needs to be formatted.
this assignation can be carried out at initialization like char word="this is the word" // the phrase array of chars obtained this string now and it is statically described
If the value is larger than four character positions vast, the sphere width expands to accommodate the suitable range of characters.
So the 1st if assertion translates to: in case you haven't passed me an argument, I'm going to show you how you should go me an argument Down the road, e.g. you will see this on-display: