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java - Casting an Object to an Interface

i have the following Classes and interfaces: public interface if1 {} public class ifTest implements if1 {} public ... from if1 to ifTest" 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.sql.SQLException: No suitable driver found for jdbc:mysql://localhost/dbname

I have searched all the links which come on the first page of the stack exchange search for this title ... .run(EventDispatchThread.java:82) See Question&Answers more detail:os...

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

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Clojure: How to Preserve Variadic Args Between Function Calls

I have two variadic functions. One of them passes its arguments to the other. The problem is that the varargs are ... . How do I do this? 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 - need to get central time in objective-c

I have app where i need to get the current time (CST). I'm trying to use the following code but the ... time is%@", [nDate description]) See Question&Answers more detail:os...

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

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How to use python map function to generate the first 100 powers of two starting at 0 and exclusive of 100?

def map_twos(): def pwr(x): return 2**x map(pwr, range(0, 100)) print pwr.get[2] return pwr What ... use map function to get the required answer See Question&Answers more detail:os...

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

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Apply Dijkstra's algorithm in a undirected graph with negative weights

Can anyone apply Dijkstra's algorithm in the undirected graph with negative weights above? Even if the algorithm fails. ... ), (E, -2) See Question&Answers more detail:os...

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

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css - :before psuedo element not working on h1 tag

I cannot get the :before pseudo class to insert an icon font before a div containing H1 tags. All the examples I see ... </div> </body> </html> 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 - Instagram - Bootstrap 3 carousel with instafeedjs

I am using instafeedjs to display the pictures on a site. I am trying to add Bootstrap 3 carousel by following link ... instafeed"></div> </div> See Question&Answers more detail:os...

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

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php - Separate MYSQL results into separate HTML Tables

I have the following in which I am trying to make separate HTML tables after each group: $query = " ... aware of adding injection prevention. 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 - Trying to count blank spaces in a string recursively?

EDIT: Really sorry, I mean Java! As for what I think, I would say the first contains if statement is ... or direction 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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javascript - Style.display block/none problems

I was planning on making a personal project with JavaScript until I encountered a problem. I have a table that's " ... tr> </table> </body> See Question&Answers more detail:os...

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

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crop - Darken parts of a free-hand cropped image in android

I want to add a free hand crop functionality. Till now I can open the picture and draw a path around the part of ... Image How can i do this ? See Question&Answers more detail:os...

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

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.htaccess - dynamic subdomains in Symfony 1.4

I am trying to create dynamic subdomains in .htaccess. I want something like this: http://ladygaga.koncert. ... ://koncert.com/concerts/ladygaga 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.util.scanner - Java scanner reading garbage

I am reading a text file using java Scanner. try { while(sc.hasNextLine()) { / ... F0FS24 CF0 AABBCC} 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 - What does the size argument of setvbuf mean for an unbuffered stream?

The function setvbuf() can be used to make a stream unbuffered: #include <stdio.h> int setvbuf(FILE *stream, char *buf ... ? Is it OK to pass 0? See Question&Answers more detail:os...

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

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html - How to remove top border of gradient text in safari

I added the text gradient using CSS but how can I remove the top border of the gradient. <div class="col- ... remove gradient as well border to See Question&Answers more detail:os...

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

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How to call Outlook after clicking a button in Java Swing?

I developed a desktop application in Java Swing. When I click a button, I want to open Microsoft Outlook. I am ... this. Can anybody help me? 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 - convert string that contains <,> (Special chars) to html

I have a string that is, <some text> I'm trying to highlight the "te" in it, using replace function ... is not understandable, please comment,.. 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 - write content in a byte array to a file and read the byte from file back to byte array

How can write content in a byte array to a file and read the byte from file back to byte array without ... the content written before. in java See Question&Answers more detail:os...

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

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manim - Where Can I find more or less detailed description of mobjects?

Can you, please, refer me to a resource(s) where I can find list of attributes and methods for manim objects? ( ... didn't find much. 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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pointers to 3D arrays C++

C++: I have a problem with pointers to 3D arrays - I'm writing a basic game with 2D arrays, each 2D array is a ... cout << endl; } return 0; } See Question&Answers more detail:os...

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

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regex - Escape CSV file with sed or other command line tool

I have the following CSV, separated by "|". 101|abc|this is desc|2017 102|xyz|"thie is a long desc des for ... the new line character with "/"? 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 - TypeError: object of type 'numpy.float64' has no len() when printing the regression coefficient of the first column in dataframe

I want to find the number of regression coefficients in the first column of my dataframe. My code raised TypeError: ... .float64' has no len() 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 - Parse PHP json_encode to Java

String json_string_from_server = "{"test1":"test1_value","test2":"test2_value"}"; how to loop the JSON and print all the keys and values. 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 - Invert the color of text?

I have a page that scrolls sideways and I have a floating menu. I want the text in the menu to invert the color ... : 0 30px; padding: 0; } See Question&Answers more detail:os...

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

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270 views

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javascript - Which to use Jquery or Ajax

In my project i have to create an Accordion.which is better to use Jquery or Ajax See Question&Answers more detail:os...

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

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255 views

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javascript - Hide and show divs with text

I know there are a lot of these threads but none seem to really fit me. I have 5 dives with text like "this is ... $('hidden_div').toggle(); }) See Question&Answers more detail:os...

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

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go - How do i apply unit testing to check leap year with golang?

I want to do unit testing and check if dates are leap year or not, how do i apply unit testing in this case, i don't ... ":"2021/10/21" } } ] } See Question&Answers more detail:os...

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

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