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c# - Suspending a timer-based operation on failure

I've got a WPF app using ReactiveUI, and it works by periodically fetching state from an external process. ... case of a successful result. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - Scroll to top after refreshing UITableView crashes after third cell

In my refresh method I'm using the following code to scroll to top which is working fine, but when I ... them solved my problem unfortunately. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - JQuery Ajax Error on Internet Explorer

I'm making an Ajax Request, it's working in all browser, but in Internet Explorer It's not working. I need that ... Page Content. What do I do? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Assigning value to `x` doesn't calculate sum

I have the following problem: x=Symbol('x') book={1:2*x,2:3*x} x=2 print(book) >>> {1:2*x,2:3*x} I had ... get {1:2*x,2:3*x} - why is that? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - unable to fetch data from DB

I've a sample JSON as given below: { "questions": [ { "id": "a200", "question": "lorem ipsum dolor ... { this.rightAnswer = rightAnswer; } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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calendar - Scala - Get list of days and months for a selected year

I asked a question regarding this here. It works fine and is a nice solution, however I just realized that in ... and days for a given year See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring Security 3.2 XML configuration

I know that this problem here very popular. But anyone didn't help me. The problem is that I can't configure my spring ... " /> </bean> </beans> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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jsp - Getting null values in student.java method "student1()" from studentDAO.java?

student.java import java.io.*; public class Student implements Serializable { String name; String id1,phone,clas; ... i am getting wrong... See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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swift - DateFormatter returns nil

Why does DateFormatter return nil? I think the string format matches? let dateString = ("01/05/2017")! let ... above, the dateObj is nil. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c# - Calling a value from a constructor

Can someone help me how to get the value of the string x and put it to another class? I want to use the value of ... { // USE X HERE } } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Using parse and javascript to find friends

In my program, if people follow you back you are friends. I'm trying to get my friends. I use the following ... . refreshTimedOut(); } }); } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - nonstatic variable pRef cannot be referenced from a static context

I'm trying to set a picture in a method setFavoritePicture (Picture pRef). This method is supposed to set ... .showArtCollection (); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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worksheet function - How to extract address in excel?

I have addresses in one cell and I want to extract them in different cells on the same row. Some cells ... break between each line. Thank you See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to fix sum of multiple input fields if same class in one <td contenteditable> not <td><input>

I can't sum on table td "jumlah" for "total" <script> $(document).on("change", ".jumlah", function( ... expect the output for total from jumlah See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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jsp - How to servlet println(); tag <c:forEach>

anyone have idea to slove my problem? I need to use servlet to println the jsp like this. <select name=" ... /option> </select> My selectbox See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - Find Mersenne prime numbers using list comprehensions and my code

I wrote this code to find prime numbers, but how could I change it to find Mersenne prime numbers? def ... n) n+=1 print known_primes See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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uwp - C# Navigating Between Pages Without losing Data

One of my assignments is to pass data to another page which I understand. But how do I get the data to ... Convert.ToString(txtname.Text); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Getting values before and after characters "-" in a String

I have the following string variable in Javascript; var str = "12-134, 65-598, 100-210, 857-34, 3-21, 89- ... 34, 21, 103. Thanks in advance. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Generics with autoboxing and unboxing of primitives

Why autoboxing and unboxing of primitives not happens with Generics Java. public static <T extends Number> T ... help would be appreciable. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - converting date from one format to another does not work

I have a date with this format: Sun Oct 19 01:00:00 ADT 2014 and I need to convert it to the following ... solve it, Does anyone have any idea? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - Parsing nested Json Objects with Gson

I am new to Gson parsing ,did some examples , but this time my json is much complex it looks like this { ... can't understand why , plsease help See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sql - missing or invalid option , in creating table due to if not exists

i have tried to create a table using if not exists using mysql in sql plus, but i got error SQL> CREATE ... ORA-00922: missing or invalid option See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Using cvGet2D function - opencv

Helo, I dont know where is error/ I think it is connected with cvGet2D function but where is sth ... Process returned -1073741819 <0xC0000005> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - Show only dates in the mentioned range for the month using FSCalendar

I am using FSCalendar. I am able to achieve everything except below point: 1) I want to remove dates for ... . Any help would be appreciated. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Java RESTful API - JSON repsonse doesn't return some fields of an Object

I am a newbie when it comes to Java RESTful API's. My current problem is that the JSON response is ... pService.deleteProfile(username); } } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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android - date and time not working in Alarm Manager

I'm having trouble working with the AlarmManager. I want to run AlarmManager using Calendar at a specific time. But ... soon as the app opens. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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awk - Shell - How to remove a string "EES" from a record after 7th occurrence of colon(:)

how do we remove EES from below input file {"last_name":"Kiran","first_name":"kumar","sno":"1234"," ... alt_ein_id_employer_??number":"V3"} TIA See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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232 views

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how to extract multi level dictionary keys/values in python

There is a two level dictionary in python: for instance here: index[term][id] = n how to get the term and n when ... like result[id] = [term, n] See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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