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Java error "Value of local variable is not used"

I am really new to java (started learning 2 days ago). Sorry if this is a stupid question. I am trying to ... . Would be nice if someone helped. See Question&Answers more detail:os...

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

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Cross-platform way to change java process priority

I need to invoke .jar file in separate JVM from another java application, and it very CPU-consuming, so it ... -platform method to do this? See Question&Answers more detail:os...

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

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How to make jQuery 1.7 .on() hover?

I'm having a problem with dynamically created elements on hover state. When I hover on newly created html element ... http://jsfiddle.net/BQ2FA/ See Question&Answers more detail:os...

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

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c++ - Deleted Function in std::pair when using a unique_ptr inside a map

I have a piece of C++ code for which I am not sure whether it is correct or not. Consider the following ... Or is the second one also wrong? See Question&Answers more detail:os...

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

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c# - Using Custom Cursor WinForms

Is there a way to use a custom cursor in winforms? There seems to be no option. But when I try to manually ... from type byte[] to Cursor. See Question&Answers more detail:os...

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

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c# - ChromeDriver showing Lost UI Shared Context

I have a Windows 10 laptop running a Windows 7 Virtual Machine. Inside the Virtual Machine, when i start the ... and still the same behavior. See Question&Answers more detail:os...

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

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swift - iOS 11 Floating TableView Header

Have an app going with multiple sections, a few rows per section when "expanded", none when "collapsed". Each ... there's that. Any ideas? See Question&Answers more detail:os...

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

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Difference between getValue() and getDisplayValue() on google app script

What is the difference of range.getDisplayValue() and range.getValue() on Google Apps Script? var ss = ... and Val2 are both same. See Question&Answers more detail:os...

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

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performance - Is it useful to use VZEROUPPER if your program+libraries contain no SSE instructions?

I understand it's important to use VZEROUPPER when mixing SSE and AVX code but what if I only use AVX (and ... (that might be using SSE). See Question&Answers more detail:os...

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

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java - OffsetDateTime yielding "No injection source found for a parameter of type public javax.ws.rs.core.response" in GET method

I have the following GET REST method: import java.time.OffsetDateTime; import javax.ws.rs.Consumes; import ... REST services and OffsetDateTime? See Question&Answers more detail:os...

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

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Line continuation of strings in Fortran

I just started using gfortran 4.7.2 in Fedora 17. When I tried to use the following a test code, I am not ... : I am a new learner of fortran See Question&Answers more detail:os...

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

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vb.net - ByVal and ByRef with reference type

Please see the code below: Public Class TypeTest Public variable1 As String End Class Public Class Form1 Private ... the function called: Test. See Question&Answers more detail:os...

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

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python - Cannot import name simplejson - After installing simplejson

I have Django Version 1.7 and Python Version 2.7.5 - I used pip install simplejson and apt-get ... ImportError: cannot import name simplejson See Question&Answers more detail:os...

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

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python - cannot override sys.excepthook

I try to customize behavior of sys.excepthook as described by the recipe. in ipython: :import pdb, sys, ... my python 2.5 installation. See Question&Answers more detail:os...

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

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java - super keyword without extends to the super class

There is a code of simple program. In constructor, super() is called without extends to the super class, I can not ... (s1.equals(s2)); } } See Question&Answers more detail:os...

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

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Java ArrayList Contain always return false although it contain the same value

This is my Hole Class class Hole { public int a; public int b; Hole(int a, int b) { this.a = a; ... anything i miss ?? Thank you in advance See Question&Answers more detail:os...

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

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java.io.FileNotFoundException in eclipse

Code: import java.io.*; import java.util.Scanner; public class Driver { private int colorStrength; private ... would be much appreciated! See Question&Answers more detail:os...

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

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ios - SwiftUI DatePicker Binding optional Date, valid nil

I'm experimenting code from https://alanquatermain.me/programming/swiftui/2019-11-15-CoreData-and-bindings/ my ... (refer to Binding extension) See Question&Answers more detail:os...

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

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python - Installing python3 in a python2 virtual environment

I have a Flask application that is running in a Python 2 virtual environment. I'm looking to run a Python 3 ... ? Is this a difficult migration? See Question&Answers more detail:os...

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

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qt - SQLite accent-insensitive search

Is there any way to do an accent-insensitive LIKE query in SQLite? For example, this query: SELECT * FROM ... if it makes any difference. See Question&Answers more detail:os...

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

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662 views

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How to prevent automatic escaping of special characters in Python

I'm writing a Python script that accepts file paths as strings, parses them, appends a command name, and builds ... pythonic way to do this? See Question&Answers more detail:os...

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

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795 views

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haskell - How to interpret bind/>>= of the function instance?

I'm trying to improve my understanding of Applicatives and Monads by implementing their function instances in Javascript. ... t make much sense. See Question&Answers more detail:os...

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

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audio - get current system volume level on iPhone

Is there a way I can get the current system volume level on the iPhone? I'm thinking maybe there's a way ... and get the value from that. See Question&Answers more detail:os...

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

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924 views

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url redirection - 301 redirect .htaccess

How do I 301 redirect, for example: a subdirectory /Blog/ to /blog/ with .htaccess? See Question&Answers more detail:os...

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

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selenium - How to Set capability for IE browser to run in Headless mode

I want to run the scripts in Headless mode for all the 3 browsers Chrome, Firefox & IE The following is the ... to execute in IE with options See Question&Answers more detail:os...

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

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c++ - gcc can compile a variadic template while clang cannot

I'm reading some slides named An Overview of C++11 and C++14 presented by Mr. Leor Zolman. At Page 35 he introduces a ... of c++11 or c++14)? See Question&Answers more detail:os...

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

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875 views

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How to implement Yii2 Modal Dialog on Gridview view and update button?

I would like to implement Yii2 modal dialog box on my gridview when view or update button is clicked at each row. Can ... ?php Modal::end(); ?> See Question&Answers more detail:os...

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

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556 views

1 answer

PHP, Merging arrays with common keys

I need to get two arrays to merge into one while keeping all the keys in place and listing the values in an array like in ... ' => (null,'9') ); See Question&Answers more detail:os...

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

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