split

问题 I am writing an Android app that collects data from sensors and stores it in a local SQLite database. What I'd like to do is sync this data (read: upload) with a backend application (I am using Android's Sync Adapter for this). Since the data can be acquired during the sync process, I think it is reasonable to set the maximum size for the sqlite file to say 700 Kb (doesn't really matter), so the sync adapter will synchronise those 700 Kb files (via POST request) excluding the active one. And

问题 According to Ron Wein your able to do split and concatenation of red-black tree's in O(log(n)) time. See his artikle: Efficient Implementation of Red-Black Trees with Split and Catenate Operations However I'm still not convinced that the running time of split really is true. The idea is that split uses worst-case log(n) concatenatations. These concat's is done fast as we can find the node, p, by remembering the p, from last concatenate. The problem is that concatenation starts the fix-up

问题 According to Ron Wein your able to do split and concatenation of red-black tree's in O(log(n)) time. See his artikle: Efficient Implementation of Red-Black Trees with Split and Catenate Operations However I'm still not convinced that the running time of split really is true. The idea is that split uses worst-case log(n) concatenatations. These concat's is done fast as we can find the node, p, by remembering the p, from last concatenate. The problem is that concatenation starts the fix-up

问题 I have array of strings const arr = ['some', 'word', 'anotherverylongword', 'word', 'yyy', 'u'] const joined = arr.join(';') I want to get array of chunks where joined string length is not greater than 10 for example output would be: [ ['some;word'], // joined string length not greater than 10 ['anotherverylongword'], // string length greater than 10, so is separated ['word;yyy;u'] // joined string length is 10 ] 回答1: You can use reduce (with some spread syntax and slice) to generate such

问题 I have array of strings const arr = ['some', 'word', 'anotherverylongword', 'word', 'yyy', 'u'] const joined = arr.join(';') I want to get array of chunks where joined string length is not greater than 10 for example output would be: [ ['some;word'], // joined string length not greater than 10 ['anotherverylongword'], // string length greater than 10, so is separated ['word;yyy;u'] // joined string length is 10 ] 回答1: You can use reduce (with some spread syntax and slice) to generate such

问题 I am trying to split a string into a string array, there might be number of combinations, I tried: String strExample = "A, B"; //possible option are: 1. A,B 2. A, B 3. A , B 4. A ,B String[] parts; parts = strExample.split("/"); //Split the string but doesnt remove the space in between them so the 2 item in the string array is space and B ( B) parts = strExample.split("/| "); parts = strExample.split(",|\\s+"); Any guidance would be appreciated 回答1: To split with comma enclosed with optional

问题 More specifically I want to split a string on any non alpha-numeric character but in the case that the delimiter is not a white space I want to keept it. That is, to the input: my_string = 'Hey, I\'m 9/11 7-11' I want to get: ['Hey' , ',' , 'I' , "'" , 'm', '9' , '/' , '11', '7' , '-' , '11'] Without no whitespace as a list element. I have tried the following: re.split('([/\'\-_,.;])|\s', my_string) But outputs: ['Hey', ',', '', None, 'I', "'", 'm', None, '9', '/', '11', None, '7', '-', '11']

问题 I'm scraping a website that has a table of satellite values (https://planet4589.org/space/gcat/data/cat/satcat.html). Because every entry is only separated by whitespace, I need a way to split the string of data entries into an array. However, the .split() function does not suit my needs, because some of the data entries have spaces (e.g. Able 3 ), I can't just split everything separated by whitespace. It get's trickier, however. In some cases where no data is available, a dash ("-") is used.

问题 I want to erase the vacuum in the String. String input = "java example.java aaa bbb"; String[] temp = input.trim().split(" "); that result is java example.java aaa bbb but i want result that java example.java aaa bbb so, i use the split(" +"). The result is right. but i don't understand, how doing the split(" +"). 回答1: split() takes a regex as it's argument. "+" in regex means "one or more of the previous element". So splitting on " +" will split on "one or more spaces". 回答2: In first case it

问题 I want to erase the vacuum in the String. String input = "java example.java aaa bbb"; String[] temp = input.trim().split(" "); that result is java example.java aaa bbb but i want result that java example.java aaa bbb so, i use the split(" +"). The result is right. but i don't understand, how doing the split(" +"). 回答1: split() takes a regex as it's argument. "+" in regex means "one or more of the previous element". So splitting on " +" will split on "one or more spaces". 回答2: In first case it