I use this to split string by a delimiter. The first puts the results in a pre-constructed vector, the second returns a new vector. #include <string> #include <sstream> #include <vector> #include <iterator> template <typename Out> void split(const std::string &s, char delim, Out result) { std::istringstream iss(s); std::string item; while (std::getline(iss, item, delim)) { *result++ = … Read more
String myString = “1234”; int foo = Integer.parseInt(myString); If you look at the Java documentation you’ll notice the “catch” is that this function can throw a NumberFormatException, which you can handle: int foo; try { foo = Integer.parseInt(myString); } catch (NumberFormatException e) { foo = 0; } (This treatment defaults a malformed number to 0, … Read more
Decode the bytes object to produce a string: >>> b”abcde”.decode(“utf-8”) ‘abcde’ The above example assumes that the bytes object is in UTF-8, because it is a common encoding. However, you should use the encoding your data is actually in!
Use the in operator: if “blah” not in somestring: continue
Strings are immutable. That means once you’ve created the String, if another process can dump memory, there’s no way (aside from reflection) you can get rid of the data before garbage collection kicks in. With an array, you can explicitly wipe the data after you’re done with it. You can overwrite the array with anything … Read more