java - Extracting digits from a string -


मेरे पास जावा स्ट्रिंग ऑब्जेक्ट है।

चलिए > 

  स्ट्रिंग str = "5N7BS में संख्या 33 और 55c हो रही है";   
 वांछित आउटपुट:  33 55   
  पैटर्न p = Pattern.compile ("[0-9] +"); Matcher m = p.matcher ("5N7BS में संख्या 33 और 55 हो रही है"); जबकि (m.find ()) {System.out.println (m.group ()); }   
 आउट कोड 5 7 33 55 को आउटपुट देता है। मुझे केवल वह आउटपुट चाहिए जो में वर्णों के बाद वर्णों का पालन किया जाता है। उदाहरण के लिए: 55 सी आउटपुट: - 55 
 लेकिन 55c5 या cc5 के लिए मुझे कोई परिणाम नहीं चाहिए। 
 
 अग्रिम धन्यवाद: -)   
 
 
 आप जोड़ने के लिए शब्द सीमाओं ( \\ b ) का उपयोग कर सकते हैं आप चाहते हैं कि बाधाओं यह केवल संख्या से मेल खाती है अगर यह सीमा के तुरंत बाद होती है, और अगर इसके बाद अगले शब्द सीमा से पहले अक्षर (यदि कुछ भी) से कुछ भी नहीं है। 
 नोट करें कि यह संख्या को पकड़ने के लिए एक समर्पित समूह का उपयोग करता है:  
  पैटर्न p = Pattern.compile ("\\ b ([0-9] +) [a-zA-Z] * \\ b"); Matcher m = p.matcher ("5N7BS में संख्या 33 और 55c हो रही है"); जबकि (m.find ()) {System.out.println (m.group (1)); }

Comments

Post a Comment

Popular posts from this blog

python - how we can use ajax() in views.py in django? -

I have a little code here. Could you please tell me what this code really does? please. Here in the AJAX call: $ .ajax ({url: "{% url} upload_document '%}", type: "POST", data : {Csrfmiddletoken: document.getElementsByName ('csrfmiddletoken') [0] Price, Title: document.getElementById ('title'). Value, // document: document: document.getElementById ('document'),}, datatype: "Jason", success: function (feedback) {if (feedback == "true") {// success} other {// attachment errors}}}); How AJAX works in the Django and how we can see the AJAX request. Here is the idea of ​​my thoughts def upload_document (requested): Print request. POTT print request FILES if request.is_ajax (): If request.method == 'POST': form = UploadForm (request.POST, request.FILES, user = request.user) if form.is_valid (): Form.save () return HTTPPCS (SimpleJason Dumps ('True'), Mime Type = 'App / Jason') Other:...
Read more

c - Performance of System() -

After the function in C, for the system (), it affects the hardware counters, so how do you order that The example displayed for the example you are trying to view lets the IM use the display API (PAPI) and the program is a precompiled matrix multiplication application. PAPI_start_counters (); System ("./matmul"); PAPI_read_counters (); // Print the values ​​PAPI_stop_counters (); I'm clearly missing a bit, but I'm trying to figure out what it is possible to say, counter receiving a program im running Is through use. With my tests I will get wild numbers like below, they are clearly wrong, just want to find out why total bicycle =========== 140733358872510 instructions complete =========== 4203968 Floating Point Instructions =========== Floating Point Operations =========== 4,196,867 Weight ======= ==== 140733358872804 store ======= ==== 4204037 branches taken =========== 15774436 System () Normally it is a very slow function, on Linux, it is ...
Read more

javascript - Is there any way to add a new parameter to a function programmatically? -

Since I can set the number of expectations by calling a function its function.length Property, do I have to programmatically create the right number of parameters to include in that function at runtime? Example: var xyz = function (a, b) {}; Var BCD = function (A, B, C, D, E, F) {}; // vararg example var doc = document, func_length = xyz.length; Doc.xyz = (function () {returns function (A, B, C, D, E) works for one / but other is not}}}. Call (doctor); / * With `only two parameters ', like' Return function (A, B)`, if this function is used for `xyz` (although in this case 5 works fine), and return function ( If the function is used for 'BCD' (which does not work with only five parameters) with A, B, C, D, E, F) `6 / / Xyz.apply (blank, arguments) Think about ... but which logic ..? : // Returning function (A, B, C, D, E) does not support work with more than five parameters, which will be mostly class - hence my question / I also know very well That I use an obj...
Read more