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How to use the TextWatcher class in Android?

Can anyone tell me how to mask the substring in EditText or how to change EditText substring input to password ... I can use the TextWatcher method in Android. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - Why can't we use double pointer to represent two dimensional arrays?

Why can't we use double pointer to represent two dimensional arrays? arr[2][5] = {"hello","hai"}; **ptr = ... t the double pointer (**ptr) work in this example? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Why is my jQuery :not() selector not working in CSS?

I have this layout: <div id="sectors"> <h1>Sectors</h1> <div id="s7-1103" class="alpha"></div> <div id= ... for this or will I have to rely on a script? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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114 views

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javascript - ECMAScript template literals like 'some ${string}' are not working

I wanted to try using template literals and it's not working: it's displaying the literal ... this.categoryName} categoryElements: ${this.categoryElements} Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do you create a daemon in Python?

Searching on Google reveals x2 code snippets. The first result is to this code recipe which has a lot of ... one sample better than the other, and why? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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80 views

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How do you explicitly set a new property on `window` in TypeScript?

I setup global namespaces for my objects by explicitly setting a property on window. window.MyNamespace = ... any which by definitely can contain anything. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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.net - In C#, should I use string.Empty or String.Empty or "" to intitialize a string?

In C#, I want to initialize a string value with an empty string. How should I do this? What is the right way, ... String.Empty; or string willi = ""; or what? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sockets - Getting the IP address of the current machine using Java

I am trying to develop a system where there are different nodes that are run on different system or on different ports on the ... 1.2 192.168.56.1 117.204.44.19 Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What does "async: false" do in jQuery.ajax()?

Specifically, how does it differ from the default ( async: true ) ? In what circumstances would I want to ... preventing other events on the page from firing ? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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regex - Regular expression for a string containing one word but not another

I'm setting up some goals in Google Analytics and could use a little regex help. Lets say I have 4 ... =size portion. Any help would be greatly appreciated! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How can I play an mp3 with pygame?

import pygame file = 'some.mp3' pygame.init() pygame.mixer.init() pygame.mixer.music.load(file) pygame.mixer. ... play anything. How can I resolve this problem? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Get current URL with jQuery?

I am using jQuery. How do I get the path of the current URL and assign it to a variable? Example URL: http://localhost/menuname.de?foo=bar&number=0 Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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219 views

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c++ - Typedef function pointer?

I'm learning how to dynamically load DLL's but what I don't understand is this line typedef void (*FunctionFunc) ... the moment; can you clarify things for me? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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380 views

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C# DateTime to "YYYYMMDDHHMMSS" format

I want to convert a C# DateTime to "YYYYMMDDHHMMSS" format. But I don't find a built in method to get this format? Any comments? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Android Activity as a dialog

I have an Activity named whereActity which has child dialogs as well. Now, I want to display this activity as a dialog for another activity. How can I do that? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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232 views

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php - Can't use method return value in write context

I would think the following piece of code should work, but it doesn't (Edited: Now works in PHP 5.5+): if (! ... What does this mean? Isn't this just a read? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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161 views

1 answer

java - Spring Boot Configure and Use Two DataSources

How can I configure and use two data sources? For example here is what I have for the first data source: ... autowire it to be used by a different repository? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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126 views

1 answer

java - Check whether a string is not null and not empty

How can I check whether a string is not null and not empty? public void doStuff(String str) { if (str != null && str ! ... handle empty string */ } /* ... */ } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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416 views

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parsing - An efficient way to transpose a file in Bash

I have a huge tab-separated file formatted like this X column1 column2 column3 row1 0 1 2 row2 3 4 5 ... -slow. Any thoughts/suggestions/brilliant ideas? :-) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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56 views

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What is 'scope' in Java?

I just started coding. I want to use a switch statement twice for the same variable, and I was told that to do this ... t in scope, how do I make it in scope? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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276 views

1 answer

python - pip install from git repo branch

Trying to pip install a repo's specific branch. Google tells me to pip install https://github.com/user/repo.git@branch ... a 404. How do I install this branch? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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323 views

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internet explorer - Why does JavaScript only work after opening developer tools in IE once?

IE9 Bug - JavaScript only works after opening developer tools once. Our site offers free pdf downloads to users, ... do I make this work in Internet Explorer? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

1 answer

c - Why malloc+memset is slower than calloc?

It's known that calloc is different than malloc in that it initializes the memory allocated. With calloc, the memory ... than calloc? How can calloc do that? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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391 views

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arrays - How to convert List<Integer> to int[] in Java?

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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175 views

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java - Declaring variables inside or outside of a loop

Why does the following work fine? String str; while (condition) { str = calculateStr(); ..... } But ... Is it necessary to declare variables outside the loop? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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342 views

1 answer

unicode - How to internationalize/localize a JSP/Servlet web application?

I learnt from Google that Internationalization is the process by which I can make my web application to use all languages ... Chrome, IE. How do I achieve this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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80 views

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java - Getting hold of the outer class object from the inner class object

I have the following code. I want to get hold of the outer class object using which I created the inner ... outer class object from the inner class object? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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264 views

1 answer

datetime - How to calculate date difference in JavaScript?

I want to calculate date difference in days, hours, minutes, seconds, milliseconds, nanoseconds. How can I do it? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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