[Solved] what this line of code mean….new URLClassLoader(new URL[0],getClass().getClassLoader()); [closed]

I want to know what is purpose of new URLClassLoader(new URL[0],getClass().getClassLoader()); It means: make a new URLClassloader that loads classes / resources from an empty array of URLs, and has this classes classloader as the parent. The resulting classloader object is then discarded. So I think this is just testing to see if the application … Read more

[Solved] How to keep only the object with the maximum value in the ArrayList?

This should be working. List<Counter> toRemove = new ArrayList<Counter>(); Collections.sort(interval, (first, second) -> { int c = 0; if (first.compareWith(second)) { if (first.getCount() <= second.getCount()()) toRemove.add(first); else if (first.getCount() >= second.getCount()) toRemove.add(second); } else c = first.getCount().compareTo(second.getCount()); return c; } ); interval.removeAll(toRemove); This is the compareWith function in the Counter class. public boolean compareWith(Counter second) … Read more

[Solved] While loop and Strings [closed]

This will be enough for you: const randomLetters = “ljhgfdza”; const returnRandom = (randomString) => { const arrString = […randomString].sort((a, b) =>{ return 0.5 – Math.random() }).join(“”); console.log(typeof arrString,arrString); } returnRandom(randomLetters); but… in this case sort method is not that random as you think. This link will tell you why. I would do this with … Read more

[Solved] How can I impute values to outlier cells based on groups? [closed]

Using the following answer from n1k31t4 in: https://datascience.stackexchange.com/questions/37717/imputation-missing-values-other-than-using-mean-median-in-python I was able to solve my problem. df[col]=df.groupby([‘X’, ‘Y’])[col].transform(lambda x: x.median() if (np.abs(x)>3).any() else x) solved How can I impute values to outlier cells based on groups? [closed]

[Solved] How to change direction in snake game [closed]

Your question is “how to fix this code”, not “give me the right code”. I will not give you the right code. I will answer the original question. The answer to that question is this: The problem is that you do cout << “***”. This will alwys draw three asterisks horizontally. That command will never … Read more

[Solved] HTML form string error [closed]

Just add a hidden value as shown below and remove the ‘?req_flag=0’ from the action attribute. <form method=”get” action=”send_req.php”> <input type=”text” name=”f_e_mail_add” value=”Enter email of your friend” size=”35″ /> <input type=”hidden” id=”req_flag” name=”req_flag” value=”0″ /> <input type=”submit” value=”Send Request” /> </form> solved HTML form string error [closed]

[Solved] how to pass hash reference to a subroutine

You never assigned to $hash_1 and $hash_2! my ($hash_1, $hash_2) = @_; You have more problems than that, however, both keys and values in scalar context return the number of elements in a hash, so you are simply checking if both hashes are of the same size! sub are_hashes_equal { my ($hash1, $hash2) = @_; … Read more

[Solved] why the stored procedure not work and showbox “incorrect syntax near ‘)’. ” [closed]

You have a surplus comma here: @answer nvarchar (100)=null, ) also checkisn’t a good column name as it is a reserved keyword, and the datetype doesn’t take a size parameter. This should work: CREATE PROCEDURE dbo.storMember ( @Check nchar (1), @UserName nvarchar (15), @Passowerd nvarchar (15)=null, @Name nvarchar (15)=null, @Phone nvarchar (15)=null, @email nvarchar (30)=null, … Read more

[Solved] Thread pool in Android, calling doinbackground directly

The Developer Guide says: Do not call onPreExecute(), onPostExecute(Result), doInBackground(Params…), onProgressUpdate(Progress…) manually. So it is indeed bad practice to call doInBackground(Params) manually. Here are some rules: The AsyncTask class must be loaded on the UI thread. This is done automatically as of Build.VERSION_CODES.JELLY_BEAN. The task instance must be created on the UI thread. execute(Params…) must … Read more