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trim left characters in sql server?

 I want to write a sql statement to trim a string 'Hello' from the string "Hello World'. Please suggest....

Loop over array dimension in plpgsql

 In plpgsql, I want to get the array contents one by one from a two dimension array. DECLARE m varchar[]; arr varchar[][] := array[['key1','val1'],['key2','val2']]; BEGIN for m in select arr LOOP raise NOTICE '%',m; END LOOP; END; But...

How to resize array in C++?

 I need to do the equivalent of the following C# code in C++ Array.Resize(ref A, A.Length - 1); How to achieve this in C++?...

Can't use WAMP , port 80 is used by IIS 7.5

 I am trying to use WAMP on Windows 7, my WAMP is online, but when I open localhost I get the welcome page of IIS 7.5, although I have uninstalled IIS 7.5 from my PC! Apache server test says that port 80 is used my Microsoft-HTTPAPI/2.0 MS Visual St...

Free easy way to draw graphs and charts in C++?

 I am doing a little exploring simulation and I want to show the graphs to compare the performance among the algorithms during run-time. What library comes to your mind? I highly prefer those that come small as I'd love if it's easy for my instructor...

adding x and y axis labels in ggplot2

 How do I change the x and y labels on this graph please? library(Sleuth2) library(ggplot2) discharge<-ex1221new$Discharge area<-ex1221new$Area nitrogen<-ex1221new$NO3 p <- ggplot(ex1221new, aes(discharge, area), main="Point") p + geom_po...

socket.error: [Errno 10013] An attempt was made to access a socket in a way forbidden by its access permissions

 I'm trying to create a custom TCP stack using Python 2.6.5 on Windows 7 to serve valid http page requests on port 80 locally. But, I've run into a snag with what seems like Windows 7 tightened up security. This code worked on Vista. Here's my samp...

How do I configure Maven for offline development?

 Does maven require a connection to the internet at some point to be able to use it? Meaning specifically getting the internal maven plugins for compiling, cleaning, packaging, etc? ...

Video format or MIME type is not supported

 This is the relevant code to run video: <video id="video" src="videos/clip.mp4" type='video/mp4' controls='controls'> Your brwoser doesn't seems to support video tag </video> This code work fine separately, but when trying to fade...

How to parse a String containing XML in Java and retrieve the value of the root node?

 I have XML in the form of a String that contains <message>HELLO!</message> How can I get the String "Hello!" from the XML? It should be ridiculously easy but I am lost. The XML isn't in a doc, it is simply a String. ...

Get the client's IP address in socket.io

 When using socket.IO in a Node.js server, is there an easy way to get the IP address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast....

Splitting string into multiple rows in Oracle

 I know this has been answered to some degree with PHP and MYSQL, but I was wondering if someone could teach me the simplest approach to splitting a string (comma delimited) into multiple rows in Oracle 10g (preferably) and 11g. The table is as foll...

String concatenation: concat() vs "+" operator

 Assuming String a and b: a += b a = a.concat(b) Under the hood, are they the same thing? Here is concat decompiled as reference. I'd like to be able to decompile the + operator as well to see what that does. public String concat(String s) { ...

Fatal error: Call to undefined function mb_strlen()

 I'm trying to make a donation center which I use the source code from Totorialzine. Everything works fine for me at this moment so far but the only problem I was struggling on and trying to look at for the whole day and can't figure what is actually...

HTML checkbox - allow to check only one checkbox

 I have some checkboxes in each row in my table. Each one checkbox has name='myName' because I want to select only one checkbox in each row. But something I'm missing because I'm able to check all of them: but I want that result: what am I missing h...

Ignoring directories in Git repositories on Windows

 How can I ignore directories or folders in Git using msysgit on Windows?...

random number generator between 0 - 1000 in c#

 I need help in writing a program that will generate 100 random numbers between 0 and 1000. The out put needs to be displayed in a windows message box. i'm stuck as to what code I have use to get the numbers in the box and to only have 100 random numb...

Using jQuery's ajax method to retrieve images as a blob

 I recently asked another (related) question, which lead to this follow up question: Submitting data instead of a file for an input form Reading through the jQuery.ajax() documentation (http://api.jquery.com/jQuery.ajax/), it seems the list of accept...

How to change the project in GCP using CLI commands

 How can i change the current running project to another project in GCP (Google Cloud Platform) account using cli commands other than using gcloud init manually. $gcloud projects list will list the projects running on my account. I want to change the...

What is a practical, real world example of the Linked List?

 I understand the definition of a Linked List, but how can it be represented and related to a common concept or item? For example, composition (EDIT: originally said 'inheritance') in OOP can be related to automobiles. All (most) automobiles in re...

Open Excel file for reading with VBA without display

 I want to search through existing Excel files with a macro, but I don't want to display those files when they're opened by the code. Is there a way to have them open "in the background", so to speak?...

What does @media screen and (max-width: 1024px) mean in CSS?

 I found this piece of code in a CSS file I inherited, but I can't make any sense out of it: @media screen and (max-width: 1024px){ img.bg { left: 50%; margin-left: -512px; } } Specifically, what is happening on the first line?...

How to connect to a docker container from outside the host (same network) [Windows]

 I've created my first docker container, it's running a server using Go but I can't access it from outside the host computer. I've just started with docker so I'm a little lost here. So I have a very simple Go code that starts a server, I have built ...

JavaScript TypeError: Cannot read property 'style' of null

 I have JavaScript code and below line has problem. if ((hr==20)) document.write("Good Night"); document.getElementById('Night).style.display='' ERROR Uncaught TypeError: Cannot read property 'style' of null at Column 69 My div tag details are: ...

How to read Data from Excel sheet in selenium webdriver

 I'm trying to read username and password from the excel file, below is my code but it shows following error : log4j:WARN No appenders could be found for logger (org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager). log4j:WARN Please ...

How To Get Selected Value From UIPickerView

 I know that with a UIDatePicker, you can use something like: NSDate *myDate = picker.date; But I am using a UIPickerView in my view. How can i similarly get the value selected? Or do I have to setup didSelectRow type of method to do this? ...

How to create custom config section in app.config?

 I want to add a custom configuration section in my app.config file. Is there a way to do it and how can I access these settings in my program. Following is the config section I want to add to my app.config: <RegisterCompanies> <Companie...

Double free or corruption after queue::push

 #include <queue> using namespace std; class Test{ int *myArray; public: Test(){ myArray = new int[10]; } ~Test(){ delete[] myArray; } }; int main(){ queue<Test> q Test t; q.pus...

How to download a file from server using SSH?

 I need to download a file from server to my desktop. (UBUNTU 10.04) I don't have a web access to the server, just ssh. If it helps, my OS is Mac OS X and iTerm 2 as a terminal....

Proper use of mutexes in Python

 I am starting with multi-threads in python (or at least it is possible that my script creates multiple threads). would this algorithm be the right usage of a Mutex? I haven't tested this code yet and it probably won't even work. I just want processDa...

How to place two forms on the same page?

 I want to place both register and login form on the same page. They both starts with: if (!empty($_POST)) ... so, I need something like: if (!empty($_POST_01))... // regForm and if (!empty($_POST_02))... //loginForm Also how to prevent ...

How to calculate UILabel height dynamically?

 I want to calculate number of lines and height of UILabel dynamically from given text for same....

jQuery Ajax Request inside Ajax Request

 Is it possible to make an ajax request inside another ajax request? because I need some data from first ajax request to make the next ajax request. First I'm using Google Maps API to get LAT & LNG, after that I use that LAT & LNG to request ...

Use of def, val, and var in scala

 class Person(val name:String,var age:Int ) def person = new Person("Kumar",12) person.age = 20 println(person.age) These lines of code outputs 12, even though person.age=20 was successfully executed. I found that this happens because I used def in ...

How to get UTC time in Python?

 I've search a bunch on StackExchange for a solution but nothing does quite what I need. In JavaScript, I'm using the following to calculate UTC time since Jan 1st 1970: function UtcNow() { var now = new Date(); var utc = Date.UTC(now.getUTC...

jQuery If value is NaN

 I am having some trouble with an if statement. I want to set num to 0 of NaN: $('input').keyup(function() { var tal = $(this).val(); var num = $(this).data('boks'); if(isNaN(tal)) { var tal = 0; } }); ...

The result of a query cannot be enumerated more than once

 I am using the entity framework (ef) and am getting the following error: "The result of a query cannot be enumerated more than once.". I have a repository class which contains the ef data context. I then have a controller class (not to be conf...

append multiple values for one key in a dictionary

 I am new to python and I have a list of years and values for each year. What I want to do is check if the year already exists in a dictionary and if it does, append the value to that list of values for the specific key. So for instance, I have a lis...

How to clear form after submit in Angular 2?

 I have some simple angular 2 component with template. How to clear form and all fields after submit?. I can't reload page. After set data with date.setValue('') field is stil touched. import {Component} from 'angular2/core'; import {FORM_DIRECTIVES...

CSS rotation cross browser with jquery.animate()

 I'm working on creating a cross-browser compatible rotation (ie9+) and I have the following code in a jsfiddle $(document).ready(function () { DoRotate(30); AnimateRotate(30); }); function DoRotate(d) { $("#MyDiv1").css({ '-...

String format currency

 I have this line @String.Format("{0:C}", @price) in my razor view. I want it to display a dollar sign in front of the price but instead it display a pound sign. How do I achieve this?...

How to render string with html tags in Angular 4+?

 In my angular 4 app, I have a string like comment: string; comment = "<p><em><strong>abc</strong></em></p>"; When I serve this text in my html, like {{comment}} Then it displays: <p><em><stro...

How can I analyze a heap dump in IntelliJ? (memory leak)

 I have generated a heap dump from my java application which has been running for some days with the jmap tool -> this results in a large binary heap dump file. How can I perform memory analysis of this heap dump within IntellIJ IDEA? I know that th...

Format a JavaScript string using placeholders and an object of substitutions?

 I have a string with say: My Name is %NAME% and my age is %AGE%. %XXX% are placeholders. We need to substitute values there from an object. Object looks like: {"%NAME%":"Mike","%AGE%":"26","%EVENT%":"20"} I need to parse the object and replace the...

sys.argv[1] meaning in script

 I'm currently teaching myself Python and was just wondering (In reference to my example below) in simplified terms what the sys.argv[1] represents. Is it simply asking for an input? #!/usr/bin/python3.1 # import modules used here -- sys is a very s...

Can I force a UITableView to hide the separator between empty cells?

 When using a plain-style UITableView with a large enough number of cells that the UITableView cannot display them all without scrolling, no separators appear in the empty space below the cells. If I have only a few cells the empty space below them in...

Unable to find valid certification path to requested target - error even after cert imported

 I have a Java client trying to access a server with a self-signed certificate. When I try to Post to the server, I get the following error: unable to find valid certification path to requested target Having done some research on the issue, I t...

Declaring variables in Excel Cells

 Is it possible to declare variables in Excel cells and use them as parameters for formulas in other cells? For example I would declare var1=10 in one of the cells. In another cell I would use var1 for calculation like: =var1*20....

Renaming part of a filename

 I have loads of files which look like this: DET01-ABC-5_50-001.dat ... DET01-ABC-5_50-0025.dat and I want them to look like this: DET01-XYZ-5_50-001.dat ... DET01-XYZ-5_50-0025.dat How can I do this?...

Add Favicon to Website

 Possible Duplicate: HTML Title Image Can someone please tell me how to make icons appear on browser tabs in PHP? I want my icon to appear on the tabs when my site is being accessed....

Python: Tuples/dictionaries as keys, select, sort

 Suppose I have quantities of fruits of different colors, e.g., 24 blue bananas, 12 green apples, 0 blue strawberries and so on. I'd like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put the...

How to set alignment center in TextBox in ASP.NET?

 How to set align center for an <asp:TextBox> control in an ASP.NET Web Application?...

Disabled form inputs do not appear in the request

 I have some disabled inputs in a form and I want to send them to a server, but Chrome excludes them from the request. Is there any workaround for this without adding a hidden field? <form action="/Media/Add"> <input type="hidden" nam...

Laravel 5 call a model function in a blade view

 I want to build a blade view from 3 tables: "inputs_details" - fields: article_type (values: 'p' for product,'s' for service), article_id, .... "products" - fields: id, name "services" - fields: id, name But, in browser, I have the error: "Clas...

Concatenate multiple node values in xpath

 I have a XML that looks like this <element1> <element2> <element3> <element4>Hello</element4> <element5>World</element5> </element3> <element3...

How do I use installed packages in PyCharm?

 In PyCharm, I've added the Python environment /usr/bin/python. However, from gnuradio import gr fails as an undefined reference. However, it works fine in the Python interpreter from the command line. GNURadio works fine with python outside of P...

changing the language of error message in required field in html5 contact form

 I am trying to change the language of the error message in the html5 form field. I have this code: <input type="text" name="company_name" oninvalid="setCustomValidity('Lütfen isaretli yerleri doldurunuz')" required /> but on submit, even...

Limit file format when using <input type="file">?

 I'd like to restrict the type of file that can be chosen from the native OS file chooser when the user clicks the Browse button in the <input type="file"> element in HTML. I have a feeling it's impossible, but I'd like to know if there is a sol...

Execute function after Ajax call is complete

 I am new to Ajax and I am attempting to use Ajax while using a for loop. After the Ajax call I am running a function that uses the variables created in the Ajax call. The function only executes two times. I think that the Ajax call may not have enoug...

How can I get color-int from color resource?

 Is there any way to get a color-int from a color resource? I am trying to get the individual red, blue and green components of a color defined in the resource (R.color.myColor) so that I can set the values of three seekbars to a specific level....

Apply vs transform on a group object

 Consider the following dataframe: columns = ['A', 'B', 'C', 'D'] records = [ ['foo', 'one', 0.162003, 0.087469], ['bar', 'one', -1.156319, -1.5262719999999999], ['foo', 'two', 0.833892, -1.666304], ['bar', 'three', -2.026673, -0....

Disable/Enable button in Excel/VBA

 I'm trying the following function in VBA/Excel: Sub function_name() button.enabled=false Call Long_Function ' duration: 10sec button.enabled=true End Sub For some reason, this button disabling does not work (it stays enabled in the exc...

Remove sensitive files and their commits from Git history

 I would like to put a Git project on GitHub but it contains certain files with sensitive data (usernames and passwords, like /config/deploy.rb for capistrano). I know I can add these filenames to .gitignore, but this would not remove their history w...

How To limit the number of characters in JTextField?

 How to limit the number of characters entered in a JTextField? Suppose I want to enter say 5 characters max. After that no characters can be entered into it....

How to implement a Boolean search with multiple columns in pandas

 I have a pandas df and would like to accomplish something along these lines (in SQL terms): SELECT * FROM df WHERE column1 = 'a' OR column2 = 'b' OR column3 = 'c' etc. Now this works, for one column/value pair: foo = df.loc[df['column']==value] ...

ASP.NET custom error page - Server.GetLastError() is null

 I have a custom error page set up for my application: <customErrors mode="On" defaultRedirect="~/errors/GeneralError.aspx" /> In Global.asax, Application_Error(), the following code works to get the exception details: Exception ex = Serve...

Selection with .loc in python

 I saw this code in someone's iPython notebook, and I'm very confused as to how this code works. As far as I understood, pd.loc[] is used as a location based indexer where the format is: df.loc[index,column_name] However, in this case, the first in...

Error running android: Gradle project sync failed. Please fix your project and try again

 Android Studio (1.2 RC0) keeps telling me Error running android: Gradle project sync failed. Please fix your project and try again. How can I find out what the problem is? Unfortunately the solutions from this SO thread did not help....

How to convert URL parameters to a JavaScript object?

 I have a string like this: abc=foo&def=%5Basf%5D&xyz=5 How can I convert it into a JavaScript object like this? { abc: 'foo', def: '[asf]', xyz: 5 } ...

How to define static constant in a class in swift

 I have these definition in my function which work class MyClass { func myFunc() { let testStr = "test" let testStrLen = countElements(testStr) } } But if I move 'testStr' and 'testStrLen' to the class level, it won't compil...

JWT (JSON Web Token) library for Java

 I am working on a web application developed using Java and AngularJS and chose to implement token authentication and authorization. For the exercise purpose, I've come to the point where I send the credentials to the server, generate a random token s...

Reminder - \r\n or \n\r?

 I just can't remember those. So, what is the right way to properly terminate old fashioned ASCII lines?...

X close button only using css

 How to make a cross (X) only in CSS3, to use as a close button? I've been searching for a long time, and cannot found how.... When I look at source code on a website using it, there's always something weird which makes the code I take unusable. The X...

Meaning of "[: too many arguments" error from if [] (square brackets)

 I couldn't find any one simple straightforward resource spelling out the meaning of and fix for the following BASH shell error, so I'm posting what I found after researching it. The error: -bash: [: too many arguments Google-friendly version: bas...

Can I convert a C# string value to an escaped string literal

 In C#, can I convert a string value to a string literal, the way I would see it in code? I would like to replace tabs, newlines, etc. with their escape sequences. If this code: Console.WriteLine(someString); produces: Hello World! I want this ...

ListView with OnItemClickListener

 I am using a custom ListView with RatingBar and ImageButton. Here is my problem: When I click on my ListView, my OnItemClickListener is not working. Please can any one help me. Code: ListView lv = getListView(); setContentView(lv); lv.setOnItemClick...

Python Pandas - Find difference between two data frames

 I have two data frames df1 and df2, where df2 is a subset of df1. How do I get a new data frame (df3) which is the difference between the two data frames? In other word, a data frame that has all the rows/columns in df1 that are not in df2? ...

Where are SQL Server connection attempts logged?

 Does SQL Server has an external log file or internal table for attempted connections, or is that kind of info put somewhere in the Windows Event Log? ...

raw_input function in Python

 What is the raw_input function? Is it a user interface? When do we use it?...

What do two question marks together mean in C#?

 Ran across this line of code: FormsAuth = formsAuth ?? new FormsAuthenticationWrapper(); What do the two question marks mean, is it some kind of ternary operator? It's hard to look up in Google....

How to define a circle shape in an Android XML drawable file?

 I have some problems finding the documentation of the definitions of shapes in XML for Android. I would like to define a simple circle filled with a solid color in an XML File to include it into my layout files. Sadly the Documentation on android.c...

Spring Boot default H2 jdbc connection (and H2 console)

 I am simply trying to see the H2 database content for an embedded H2 database which spring-boot creates when I don't specify anything in my application.properties and start with mvn spring:run. I can see hibernate JPA creating the tables but if I try...

How to set JAVA_HOME in Linux for all users

 I am new to Linux system and there seem to be too many Java folders. java -version gives me: java version "1.7.0_55" OpenJDK Runtime Environment (rhel-2.4.7.1.el6_5-x86_64 u55-b13) OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode) When I a...

AttributeError: 'str' object has no attribute 'append'

 >>> myList[1] 'from form' >>> myList[1].append(s) Traceback (most recent call last): File "<pyshell#144>", line 1, in <module> myList[1].append(s) AttributeError: 'str' object has no attribute 'append' >>>...

What is the difference between Google App Engine and Google Compute Engine?

 I was wondering what the difference between App Engine & Compute Engine are. Can anyone explain the difference to me?...

How to save the contents of a div as a image?

 Basically, I am doing what the heading states, attempting to save the contents of a div as an image. I plan on making a small online application for the iPad. One function that is a must is having a 'Save' button that can save the full webpage as a...

Failed to execute 'postMessage' on 'DOMWindow': https://www.youtube.com !== http://localhost:9000

 This is the error message that I get: Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://www.youtube.com') does not match the recipient window's origin ('http://localhost:9000'). I've seen other similar problems ...

How do I write a "tab" in Python?

 Let's say I have a file. How do I write "hello" TAB "alex"?...

7-Zip command to create and extract a password-protected ZIP file on Windows?

 On Mac/Linux to zip/unzip password protected zip files, I use: Zip: zip -P password -r encrypted.zip folderIWantToZip Unzip: unzip -P password encrypted.zip What are the equivalent command on Windows on the command line (assuming that 7zip has ...

POST JSON fails with 415 Unsupported media type, Spring 3 mvc

 I am trying to send a POST request to a servlet. Request is sent via jQuery in this way: var productCategory = new Object(); productCategory.idProductCategory = 1; productCategory.description = "Descrizione2"; newCategory(productCategory); where n...

How do I monitor the computer's CPU, memory, and disk usage in Java?

 I would like to monitor the following system information in Java: Current CPU usage** (percent) Available memory* (free/total) Available disk space (free/total) *Note that I mean overall memory available to the whole system, not just the JVM. I'...

How to configure Visual Studio to use Beyond Compare

 I would like to configure Visual Studio to open Beyond Compare by default as the diff tool. How can I do this?...

How to show soft-keyboard when edittext is focused

 I want to automatically show the soft-keyboard when an EditText is focused (if the device does not have a physical keyboard) and I have two problems: When my Activity is displayed, my EditText is focused but the keyboard is not displayed, I need to...

How Exactly Does @param Work - Java

 How does the annotation @param work? If I had something like this: /* *@param testNumber; */ int testNumber = 5; if (testNumber < 6) { //Something } How would the @param affect the testNumber? Does it even affect the testNumber? Thanks. ...

How to add fonts to create-react-app based projects?

 I'm using create-react-app and prefer not to eject. It's not clear where fonts imported via @font-face and loaded locally should go. Namely, I'm loading @font-face { font-family: 'Myriad Pro Regular'; font-style: normal; font-weight: normal...

Check a collection size with JSTL

 How can I check the size of a collection with JSTL? Something like: <c:if test="${companies.size() > 0}"> </c:if> ...

Python List vs. Array - when to use?

 If you are creating a 1d array, you can implement it as a List, or else use the 'array' module in the standard library. I have always used Lists for 1d arrays. What is the reason or circumstance where I would want to use the array module instead? ...

Error: EACCES: permission denied

 I run npm install lodash but it throws Error: EACCES: permission denied error. I know it is permission issue but as far as I know, sudo permission is not required for installing node module locally. If I run it with sudo, it gets installed inside ~/n...

How to sum all the values in a dictionary?

 Let's say I have a dictionary in which the keys map to integers like: d = {'key1': 1,'key2': 14,'key3': 47} Is there a syntactically minimalistic way to return the sum of the values in d—i.e. 62 in this case?...

Emulator in Android Studio doesn't start

 I think it's a problem with the SDK reference in Project Structure, but when I click run and I choose Launch Emulator nothing appears....

SonarQube Exclude a directory

 I am trying to exclude a directory from being analyzed by Sonar. I have the following properties defined in my sonar-project.properties file: sonar.sources=src/java sonar.exclusions=src/java/test/****/*.java The directory structure I have is: src...

How to implement the Android ActionBar back button?

 I have an activity with a listview. When the user click the item, the item "viewer" opens: List1.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {...

How to delete all the rows in a table using Eloquent?

 My guess was to use the following syntax: MyModel::all()->delete(); But that did not work. I'm sure it's super simple, but I've searched for documentation on the subject and can't find it!...

Combining Two Images with OpenCV

 I'm trying to use OpenCV 2.1 to combine two images into one, with the two images placed adjacent to each other. In Python, I'm doing: import numpy as np, cv img1 = cv.LoadImage(fn1, 0) img2 = cv.LoadImage(fn2, 0) h1, w1 = img1.height,img1.width h2...

LaTeX: Multiple authors in a two-column article

 I'm kind of new to LaTeX and I am having a bit of a problem.. I am using a twocolumn layout for my article. There are four authors involved with different affiliations, and I am trying to list all of them under the title so they span the entire widt...

How to turn IDENTITY_INSERT on and off using SQL Server 2008?

 Why am I getting an error doing an insert when IDENTITY_INSERT is set to OFF? How do I turn it on properly in SQL Server 2008? Is it by using SQL Server Management Studio? I have run this query: SET IDENTITY_INSERT Database. dbo. Baskets ON Th...

Getting error while sending email through Gmail SMTP - "Please log in via your web browser and then try again. 534-5.7.14"

 I'm having problems with gmail smtp server. I already read many posts here in StackOverflow about that subject. The best post I found about test the connection is this one. Although it is very well explained the error I'm getting I couldn't find a ...

How do I create batch file to rename large number of files in a folder?

 I'd like to rename a large number of files within a folder on a WinXP system, preferably using a batch file. The files are currently named like this: Vacation2010 001.jpg Vacation2010 002.jpg Vacation2010 003.jpg And I'd like to change the...

What is the effect of encoding an image in base64?

 If I convert an image (jpg or png) to base64, then will it be bigger, or will it have the same size? How much greater will it be? Is it recommended to use base64 encoded images on my website?...

Converting a float to a string without rounding it

 I'm making a program that, for reasons not needed to be explained, requires a float to be converted into a string to be counted with len(). However, str(float(x)) results in x being rounded when converted to a string, which throws the entire thing of...

Tomcat Server not starting with in 45 seconds

 Server Tomcat v7.0 Server at localhost was unable to start within 101 seconds. If the server requires more time, try increasing the timeout in the server editor. This is my error. I searched a lot but I can't able to find a solution for this pl...

how to read certain columns from Excel using Pandas - Python

 I am reading from an Excel sheet and I want to read certain columns: column 0 because it is the row-index, and columns 22:37. Now here is what I do: import pandas as pd import numpy as np file_loc = "path.xlsx" df = pd.read_excel(file_loc, index_col...

Minimum and maximum value of z-index?

 I have a div in my HTML page. I am showing this div based on some condition, but the div is displaying behind the HTML element where I pointed the mouse cursor. I have tried all values for z-index from 0 - 999999. Can anyone tell me why this is happ...

GROUP BY having MAX date

 I have problem when executing this code: SELECT * FROM tblpm n WHERE date_updated=(SELECT MAX(date_updated) FROM tblpm GROUP BY control_number HAVING control_number=n.control_number) Basically, I want to return the most recent date for each con...

Broadcast Receiver within a Service

 I am trying to start up a BroadcastReceiver within a Service. What I am trying to do is have a background running service going that collects incoming text messages, and logs incoming phone calls. I figured the best way to go about this is to have a ...

format statement in a string resource file

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