[ad_1] For the simplest case, you might solve this with a regular expression: >>> import re >>> re.sub(r”(‘?null’?)”, “‘Null'”, “{‘abcd’: null}”) “{‘abcd’: ‘Null’}” >>> re.sub(r”(‘?null’?)”, “‘Null'”, “{‘abcd’: ‘null’}”) “{‘abcd’: ‘Null’}” >>> but from the look of you example and the comment (which should really be part of your question) mentionning you might have a lot … Read more
[ad_1] Your String result = “”; is null check it Your are returning null string change it You should return sb.toString(); instead of return result; EDIT public class PreDefinedAttributes { private Context mContext; private String mobile_os, mobile_model, mobile_brand, mobile_version, mobile_manufacturer; private String sdk_version, src, appname, appversion; private String lat = “”, lng = “”, device_id; … Read more
[ad_1] try this, String s = “25999993654”; System.out.println(Character.getNumericValue(s.charAt(0)) + Character.getNumericValue(s.charAt(1))); 1 [ad_2] solved Can I product of charAt in Java? [duplicate]
[ad_1] The problem is that you are declaring your string array inside the loop and never populating it with anything. Move that string array outside the loop instead. Also, I don’t think you want to write the file every time through the loop, so move file write outside the loop too. static void Main(string[] args) … Read more
[ad_1] You start by taking the string. ansible-playbook delete.yml –extra-vars “host=5.955.595 user=root pass=anotherpw vm=myVm” Then you escape all special characters. In this case, that’s just the 2 double-quotes. ansible-playbook delete.yml –extra-vars \”host=5.955.595 user=root pass=anotherpw vm=myVm\” Then you surround that with double-quotes, to make it a Java string literal. “ansible-playbook delete.yml –extra-vars \”host=5.955.595 user=root pass=anotherpw vm=myVm\”” … Read more
[ad_1] The point of single-quoted strings is that they don’t support escape characters. The documentation says this very clearly: All other instances of backslash will be treated as a literal backslash: this means that the other escape sequences you might be used to, such as \r or \n, will be output literally as specified rather … Read more
[ad_1] Generate a random integer between 0 and (the array size – 1), both inclusive. Access your array with an index equal to this random number. We can’t give you ready-to-use code unless you show some efforts in terms of your own code. 2 [ad_2] solved How would I print a random array element? [closed]
[ad_1] You can just use the str.index(char, [beg, end]) method to retrieve the position of a character inside a string. The method allows you to add a beginning and end position that you can use to check for the different occurrences. Here the code: s=”CNCCN” dist = s.index(‘N’, s.index(‘N’) + 1) – s.index(‘N’) And its … Read more
[ad_1] A short and simple way is just to test the first and last characters: var input = // whatever var wrapped = input; if (‘”‘ === wrapped || !(‘”‘ === wrapped[0] && ‘”‘ === wrapped.slice(-1))) wrapped = ‘”‘ + wrapped + ‘”‘; (This works even on empty strings, because ”[0] is undefined and ”.slice(-1) … Read more
[ad_1] Use CHAR_INDEX twice: SELECT *, SUBSTRING(path, pos1 + 1, pos2 – pos1 – 1) FROM tests CROSS APPLY (SELECT NULLIF(CHARINDEX(‘\’, path), 0)) AS ca1(pos1) CROSS APPLY (SELECT NULLIF(CHARINDEX(‘\’, path, pos1 + 1), 0)) AS ca2(pos2) — NULLIF is used to convert 0 value (character not found) to NULL Test on db<>fiddle 1 [ad_2] solved … Read more
[ad_1] Of course you can: #define S str##ing #define S_INCLUDE <S> #include <iostream> #include S_INCLUDE int main() { std::S str = “Hello world!”; std::cout << str << std::endl; } 2 [ad_2] solved Is there any way to use string in c++ without the word “string” appear in the program? [closed]
[ad_1] This seem to be an encoding issue, check the encoding of your source file. You should be able to change it with your IDE. To change encoding on eclipse, Window -> Preferences -> General -> Workspace : Text file encoding (Fetched from this post How to change default text file encoding in Eclipse?) 0 … Read more
[ad_1] The idea that “some compilers don’t work properly” is absurd. If you’re comparing C-style strings via char* pointers, then the =, !=, <=, … operators compare the pointers, not the strings they point to. In that case, use the strcmp() function instead. But since you’re asking about the compare function, you’re clearly not asking … Read more
[ad_1] Your problem is evident in your debug output. getline does not strip the newline from the input, so for example you are searching for: “know\n” in “I do not know what to write\n” So your problem is not about stripping the \0 string terminator, but rather stripping the \n line-end. That can be achieved … Read more
[ad_1] Indexes are zero-based: ↓ Peter Piper picked a peck of pickled pepper 111111111122222222223333333333444 0123456789012345678901234567890123456789012 ↑ The first p is at index 8. From the javadoc of indexOf(): Returns the index of the first occurrence of the character in the character sequence represented by this object, or -1 if the character does not occur. [ad_2] … Read more