string

[Solved] Inserting letters into a string at every possible spot [closed]

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Try this System.out.println(“originaltext”.replaceAll(“.{1}”,”$0ry”)); The above is using the String replaceAll(String regex, String replacement) method – “Replaces each substring of this string that matches the given regular expression with the given replacement.” “.{1}” – The regular expression used to find exactly one occurrence({1}) of any character(.) “$0ry” – The replacement string with “$0” for the matched … Read more

[Solved] Dataframe with string columns – each column need to split into multiple at word “and” – R [closed]

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Here is what worked for me – using inputs from above and various other threads on SO. I am a complete newbie to R and my objective is to migrate work from excel to R. # returns string w/o leading or trailing whitespace trim <- function (x) gsub(“^\\s+|\\s+$”, “”, x) #——————————————————————————– # OBJECTIVE – migrate … Read more

[Solved] How to convert char array into string for DateTime.Parse? [closed]

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Consider this: var date = “11252017”; var arrDate = date.ToArray(); var strDate = arrDate[0] + arrDate[1] + “https://stackoverflow.com/” + arrDate[2] + arrDate[3] + “https://stackoverflow.com/” + arrDate[4] + arrDate[5] + arrDate[6] + arrDate[7]; // 98/25/2017 Notice that: ‘1’ + ‘1’ = 98* ⇒ char + char = int 98 + “https://stackoverflow.com/” = “98/” ⇒ int + … Read more

[Solved] How does type coercion with “+string” work in Javascript? [duplicate]

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As the ECMAScript spec describes in section 12.5.6: 12.5.6 Unary + Operator NOTE       The unary + operator converts its operand to Number type. So in JavaScript, the unary + operator (e.g., +x) will always convert the expression x into a number. In other words, the following statements are equivalent: var x = Number(‘1234’); var … Read more

[Solved] How to inverse string without library functions – C++

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Did you maybe mean to do this: for (int i = 0; i < userString.length(); ++i) { if (isupper(userString[i])) { userString[i] = (tolower(userString[i])); } else if(islower(userString[i])) { userString[i] = (toupper(userString[i])); } } This will actually inverse. What you were doing before doesn’t work, and also only converts to uppercase 11 solved How to inverse string … Read more

[Solved] Why doesn’t String.split(“:”) work correctly?

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You have a problem in this part: if(hour.startsWith(“0”)) { tTime = hour.split(“0”); if(tTime.length > 0) hour = tTime[0]; else hour = “0”; } So if your input is “08:15”, hour value is “08”. Now when you split it using delimiter “0”, you get an array { “”, “8” }. So, now tTime[0] is “”. Use … Read more

[Solved] How to get number value of string value that is changing ; javascript [closed]

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Firstly, make your object valid. Then just split on a comma to extract the desired values. let obj = { map: { geo: “20.471884,-157.5056”, p: “Hawaii” } }; const [lat, lng] = obj.map.geo.split(“,”); console.log(lat); console.log(lng); The name is obj not location because location is reserved. solved How to get number value of string value that … Read more

[Solved] Problem of a string read in function system() (probably due to a bad malloc) [closed]

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chain1 = (char *) malloc(5*sizeof(char*) + 1); This will allocate enough space for five character pointers plus an extra byte. A pointer is not the same as a character, it tends to be either four or eight bytes currently but can actually be any size. You probably want sizeof(char) but, since that’s always 1, you … Read more

[Solved] What am I missing in my code? JAVA [closed]

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for (int i = 0; i < str.length(); i++) { if (str.charAt(i) == ‘ ‘ || str.charAt(i) == ‘\t’ || str.charAt(i) == ‘\n’) { // end of token, check if key word String currentWord = s.toString(); boolean isKeyword = false for (int j = 0; j < keywords.length; j++) { if (currentWord.equalsIgnoreCase(keywords[j])) { isKeyword = … Read more

[Solved] I want to extract strings from a line

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Don’t use StringTokenizer: StringTokenizer is a legacy class that is retained for compatibility reasons although its use is discouraged in new code. It is recommended that anyone seeking this functionality use the split method of String or the java.util.regex package instead. You can use split() if you split on 2 or more spaces: split(” {2,}”) … Read more

[Solved] Im not sure how to use strtok to separate tokens [duplicate]

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#include <stdio.h> #include <string.h> int main(void) { char *order[] = {“Day”, “Month”, “Date”, “Year”, “Hour”, “Minute”, “Second”}; char text[] = “Saturday, July 8, 2017, 22:14:10″; char* delims = ” ,:”; char* token = strtok(text, delims); char** label = order; while(token) { printf(“%-8s: %s\n”, *label, token); token = strtok(NULL, delims); label++; } return 0; } Output: … Read more

[Solved] How to replace a pattern in a string

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I would do this for the links <%= ([1,2,3]- [params[:x]]).each do |link_number| %> <%= link_to “Version #{link_number}”, “/page?x=#{link_number}” %> <% end %> This way everytime the page is loaded the link to the other 2 versions will exist. You could handle the partials through the controller (which seems better) or use something like: <%= render … Read more