The 's' replaces one 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 often produce exactly the same final result, irrespective of what x is. Nonetheless, it is vital to notice that the two common expressions usually are not exactly the same:
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Employing %s in scanf with out an explcit subject width opens exactly the same buffer overflow exploit that will get did; specifically, if you will find extra characters inside the input stream when compared to the target buffer is sized to hold, scanf will happily compose All those extra characters to memory outside the buffer, probably clobbering a thing important. Sadly, as opposed to in printf, You cannot provide the field with like a run time argument:
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The initial regex will match just one whitespace character. The 2nd regex will reluctantly match a number of whitespace figures. For the majority of applications, both of these regexes are very equivalent, besides in the second case, the regex can match much more in the string, if it prevents the regex match from failing. from
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And because your 2nd parameter is empty string "", there isn't a distinction between the output of two cases.
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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 needs to be formatted.
this assignation can be carried out at initialization like char word="this is the phrase" // the term array of chars bought this string now and is also statically described
Firstly you should recognize that final output of equally the statements might be same i.e. to remove the many Areas from given string.
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