Removing whitespace from strings in Java -

-

मेरे पास इस तरह की स्ट्रिंग है: 

  mysz = "name = john age = 13 वर्ष = 2001 ";   
 मैं स्ट्रिंग में रिक्त स्थान को निकालना चाहता हूं। मैंने  ट्रिम ()  करने की कोशिश की लेकिन यह पूरे स्ट्रिंग के पहले और बाद में केवल सफेद स्थान निकाल देता है। मैंने  प्रतिस्थापित सभी ("\ \ W", "")  की कोशिश की, लेकिन फिर  =  भी निकाल दिया गया।  
 मैं एक स्ट्रिंग कैसे प्राप्त कर सकता हूं :  
  mysz2 = "name = johnage = 13year = 2001"    
 
 
  st.replaceAll (" \\ s + "," ")  सभी रिक्त स्थान और गैर-दृश्यमान वर्ण (जैसे, टैब,  \ n ) को हटा देता है। < / P> 
 
  st.replaceAll ("\\ s +", "")  और  st.replaceAll ("\\ s", "")  एक ही परिणाम का उत्पादन करें।  
 दूसरा regex पहले से 20% अधिक तेज है, लेकिन जैसा कि संख्या लगातार स्थान बढ़ती है, पहले एक दूसरे से बेहतर प्रदर्शन करता है।  
 < P> एक वेरिएबल को मान असाइन करें, यदि सीधे उपयोग नहीं किया गया है:  
  st = st.replaceAll ("\\ s +", "")

Comments

Post a Comment

Popular posts from this blog

qt - switch/case statement in C++ with a QString type -

-
I want to use switch-case in my program but the compiler generates an error. How can I use the switch statement with QString ? The compiler gives me this error: The expression of the switch type 'QString' is invalid My code is as follows : boolStopWord (the word QString) {bool flag = false; Switch (word) {case "the": flag = true; break ; "On" case: flag = true; break ; Case "in": flag = true; break ; Case "your": flag = true; break ; Case "near": flag = true; break ; Case "all": flag = true; break ; Case "this": flag = true; break ; } Return flag; } How do I use the switch statement with a Caststring ? You can not use the switch statement in C ++ language with integral or enum types. You can formally enter the square type of object in the switch statement, but this means that the compiler will look for a user-defined conversion to convert it to an integral or enum type.
Read more

python - sqlite3.OperationalError: near "REFERENCES": syntax error - foreign key creating -

-
I'm trying to create a predefined key after checking the manual and I wrote it: Db.execute ("create table" Table 2 (id, integer primary key, somedata integer) "db.execute" (table creation table 2 does not exist (name text, maintain reference (id) ") and found this: sqlite 3. Operation error: near" references ": syntax error Your second ligne is wrong db.execute ("create table if table does not exist 2 (name text, my_id integer, foreign key (my_id) reference Maintenance (ID)) ") as explained
Read more

Python's equivalent for Ruby's define_method? -

-
What is a Python equivalent for Ruby's define_method , which is the dynamic generation of class methods will allow? (As can be seen in Wikipedia) Functions are first-class objects in Python and assign them The properties of a class or an example can be a way of doing the same thing as a Wikipedia example: colors = {"black": "000", "red": "F00", "green": "0f0", "yellow": "ff0", "blue": "00f", "magenta": "fff", "cyan": "0ff", "white": " FFF "} Class MyStream (ARR): Pass for Name, Code in colors.iteritems (): def _in_colour ( W code = code): return '& lt; Span style = "color:% s" & gt;% s & lt; / Span & gt; ' % (Code, self) setter (histrive, "in_" + name, _in_ color)
Read more