The 's' replaces 1 Area match at a time however the 's+' replaces The entire Area sequence at the same time with the second parameter.
Those two replaceAll phone calls will usually produce the same consequence, irrespective of what x is. Nevertheless, it's important to notice which the two standard expressions aren't a similar:
so "indent" specifies just how much space to allocate with the string that follows it from the parameter listing.
Applying %s in scanf with no an explcit field width opens precisely the same buffer overflow exploit that receives did; namely, if you can find extra characters inside the enter stream when compared to the target buffer is sized to hold, scanf will happily compose those added figures to memory outdoors the buffer, most likely clobbering something essential. Regrettably, not like in printf, You cannot provide the field with like a run time argument:
The explanation driving the code if I am using %s as opposed to %c in my printf portion of the code 82
The primary difference lies in how it get's managed. In case you would have a gaggle of (such as) three spaces directly next each other s+ requires that team and turns The entire it right into a "", when s would proces every single Area By itself.
And because your second parameter is empty string "", there's no difference between the output of two scenarios.
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The width isn't laid out in the structure string, but as an extra integer value argument previous the argument that must be formatted.
If the value to become output is fewer than 4 character positions wide, the worth is true justified in the sector by default.
If the value is larger than four character positions wide, the sector width expands to support the right quantity of figures.
The following if assertion checks to discover In case the 'database-identify' you passed to the script basically exists to the filesystem. If not, you will get a message such as this: