Memory efficient replace functions

Memory efficient replace functions

Content Index :

Memory efficient replace functions
Tag : java , By : user183345
Date : November 24 2020, 03:01 PM

it helps some times This answer is addressing the issue when working with a general string. There are better solutions if you're working with HTML.
data = data.substring(1, data.length() - 1);
data = StringUtils.replace(data, "\\u003C", "<");
data = StringUtils.replace(data, "\\u003E", ">");
data = StringUtils.replace(data, "\\\"", "\"");
StringBuilder sb = new StringBuilder(data.length());
Map<String, String> replacements = Map.of("\\u003C", "<", "\\u003E", ">" /* etc */);
for (int i = 1; i < data.length() - 1; ++i) {

  for (Map.Entry<String, String> entry : replacements.entrySet()) {
    String search = entry.getKey();

    // This is basically checking "endsWith".
    int endIndex = sb.length() - search.length();
    if (endIndex >= 0 && sb.indexOf(search, endIndex) == endIndex) {
      sb.delete(endIndex, sb.length());
data = sb.toString();
Pattern p = Pattern.compile(
Matcher m = p.matcher(data);
int prev = 1;
while (m.find()) {
  sb.append(data, prev, m.start());
  prev = m.end();
sb.append(data, prev, data.length() - 1);
if (!m.group().startsWith("<head>")) {

No Comments Right Now !

Boards Message :
You Must Login Or Sign Up to Add Your Comments .

Share : facebook icon twitter icon

Which is more efficient memory wise: static functions, or functions of an object that is deleted right away?

Tag : cpp , By : user98986
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , As it stands, none of this makes any sense. The real solution would be to provide a free function (a function at namespace scope), because this is what free functions are there for.
Oh, and since you asked: If calling this one single function has noticeable overhead in your code, then you will only find out about it through careful profiling. Profiling is also what would answer your question which way is faster.

What's the most memory/processor efficient way to pass structs as parameters to functions for modification?

Tag : development , By : pcoramc
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further In Go, using pointers to pass structs for modification is the idiomatic way to do it. There are no reference variables as there are in other languages. So passing a pointer is the most efficient way to do it now and since it is idiomatic, will most likely be so in future versions of Go as well.

Writing efficient functions for data.tables that replace by reference

Tag : r , By : user134570
Date : March 29 2020, 07:55 AM
To fix the issue you can do This is similar to Frank's but lets the arguments be passed to a function that builds the translation vector and returns the translation. You don't need to do the loop inside the function since the lapply , the :=, and the .SDcols functions are doing the looping inside [.data.table.
recode_dt <- function(datacol, oldval, newval) 
    { trans <- setNames(newval, oldval)
     trans[ datacol ]   }

dt[, (bincols) := lapply(.SD, recode_dt, oldval = c("u", "n", "y"), 
                                         newval = c(NA_real_, 0, 1)), 
     .SDcols = bincols]
   id     fruit     mydate eaten present sex
1:  1     apple 2015-09-01     1       0   m
2:  2    orange 2015-09-02     1       0   f
3:  3    banana 2015-11-15     0       1   f
4:  4 strawbery 2016-02-24     1       1   m
5:  5  rasberry 2016-03-08    NA       1   f

Memory efficient way to replace string in Java

Tag : java , By : user118656
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further There are couple of solutions other than thinking about java string pool maintenance. Since based on expert comments we can't do much about it. Architectural guidance has always been to avoid excessive processing on data by use of proper modelling.
I don't think an improvement is viable in Java, but if I get this problem, I will try the following:

What is Memory efficient way to replace some pattern of string to other

Tag : java , By : Mr. Tacos
Date : March 29 2020, 07:55 AM
Related Posts Related QUESTIONS :
  • How to detect if gson.fromjson() has excess elements
  • I cant generate the proper code to select the a specific filter on a BI dashboard I am working on
  • How to Inject Dependencies into a Servlet Filter with Spring Boot Filter Registration Bean?
  • Thrift types as a Generic
  • Effective algorithm to random 4 unique integers less than a big max such as 100_000
  • Combining or and negation in Java regex?
  • Unable to instantiate default tuplizer Exception
  • Multi-tenant migration to work with quarkus
  • Ignite persisting a Set: Cannot find metadata for object with compact footer
  • Maven cannot resolve Jacob dependency using eclipse
  • testcontainers oracle database container starts before database user is created
  • Launching two spring boot apps in integration test
  • Is there a way to add a HashMap's value that is a integer array into a ArrayList?
  • Is there any way that I can get a parameter in paintComponent?
  • Empty stack with one recursive method and one iterative method
  • What's the behavior of onBackpressureBuffer in RxJava2
  • Java regex can only use 1 quantifier in a lookback (need 2)
  • How to fix error in native query : it is showing syntax error near or at
  • How to retrieve nested object from a document and display it in FirestoreRecyclerOptions?
  • Why not use ListIterator for full LinkedList Operation?
  • Android Webview EvaluateJavascript sometimes does not return a response
  • Matcher java doesn't work but regex seems to be good
  • Finding dimensions of a .gif file
  • Java Number format how to change +/- sign to custom text
  • Entity partially saved when using JOINED inheritance strategy and setting spring.jpa.properties.hibernate.jdbc.batch_siz
  • Stored Procedure in Java Spring Boot Project returns null as Output
  • How to solve org.hibernate.MappingException which is causing due to inheriting a class
  • Clean Archtecture. Understanding of scheme
  • Processing 3 triangle not showing in Javafx 8 Window tab
  • How to specify a sequence-based generated value in Hibernate 5 via legacy mapping
  • Spring-boot application not getting auto-deployed on startup
  • How to only pass strings that the user select
  • Is there a way to SELECT using "GREATEST(field1, field2)" where field1 and field2 are aggregate sums in the sa
  • How to handle JSON objects wrapped into one JSON object with retrofit2?
  • Configure Hazelcast CPSubsystem Retries Timeout
  • how to use onBindViewHolder with multiple items in android RecyclerView
  • No ParameterResolver registered for parameter in BeforeAll method
  • Finding the path in a graph with the least casualties according to the lanchester square law
  • MongoWriteException when inserting into Mongodb with composite custom _id
  • Fetch Oracle procedure metadata with Java when multiple procedure signatures
  • Value modification of key-pair in HashMap and impact for a HashCode
  • Migration from solrj to spring-data-solr
  • How to check if you're still connected to the database with jpa
  • Use Date type in the graphql scheme
  • Split and add the string based on length
  • Is "main" method of spring boot application required when deploy as war
  • Getting the average within specific numbers in an array
  • how to use izpack to make my jar application to installer?
  • What is meant by src in Java Eclipse?
  • Create a mirrored linked list in Java
  • Examples of good JPA Java Desktop Application
  • Translate Java to Python -- signing strings with PEM certificate files
  • Algorithm Analysis tool for java
  • Java serial comm API - what does inputstream.read() return if a timeout occurs?
  • How do I make a background thread in Java that allows the main application to exit completely? This works in Linux, but
  • How to add an image dynamically at runtime in java
  • Java App on Mac asking for allow network connections everytime
  • Best actively maintained Java XMPP Library?
  • Multi-Threaded Application - Help with some pseudo code!
  • Scoping a StringBuilder inside a for loop
  • shadow
    Privacy Policy - Terms - Contact Us © scrbit.com