Generate a random integer between 0 and (the array size – 1), both inclusive. Access your array with an index equal to this random number. We can’t give you ready-to-use code unless you show some efforts in terms of your own code. 2 solved How would I print a random array element? [closed]
Replace fileref = open(“H:\CloudandBigData\finalproj\BeautifulSoup\twitter.txt”,”r”) with fileref = open(r”H:\CloudandBigData\finalproj\BeautifulSoup\twitter.txt”,”r”) Here, I have created a raw string (r””). This will cause things like “\t” to not be interpreted as a tab character. Another way to do it without a raw string is fileref = open(“H:\\CloudandBigData\\finalproj\\BeautifulSoup\\twitter.txt”,”r”) This escapes the backslashes (i.e. “\\” => \). An even better solution … Read more
The .* will match everything after the :, including the space and the time. To get just the date, be more specific than a wildcard that matches any character. Use this pattern: #(\d{2}/\d{2}/\d{4})# Capture group #1 will contain the date. You tagged it as only regex and not php, but in PHP that would be: … Read more
You can achieve it like following. SELECT ‘8=’ + CAST([8_length] AS VARCHAR(10)) AS [8_length] FROM [Your_Table] Note: If the column type is already VARCHAR, in that case you don’t need to use CAST solved I want to fetch data from table and append column name code to the value as key value pair. How to … Read more
Hope this helps. Code can be improved with exceptions checks. This one is just to get started with. package com.samples; import java.util.Scanner; public class ScannerSample { public static void main(String [] args) { Scanner scanner = new Scanner(System.in); int [] mas = new int[50]; int inputInt = scanner.nextInt(); mas[0] = inputInt; int count = 1; … Read more
Look for a word of column 1 and then search that word in another column of another excel sheet and use the adjacent information to fill the cell solved Look for a word of column 1 and then search that word in another column of another excel sheet and use the adjacent information to fill … Read more
You are missing the id = “collapseExample”or data-target=”#collapseExample” from the element that you want to toggle https://getbootstrap.com/docs/4.0/components/collapse/ 2 solved Bootstrap form not collapsing
I usually use dynamic sql. Something like this create table #T ( ID int, aText1 varchar(4), aText2 varchar(4), aInt1 int, aInt2 int ) insert into #T select 1, ‘ABC1’, ‘XYZ1’, 2, 20 union select 2, ‘ABC1’, ‘XYZ2’, 3, 25 union select 3, ‘ABC2’, ‘XYZ2’, 1, 30 union select 4, ‘ABC2’, ‘XYZ1’, 4, 35 declare @sql … Read more
Yes, you can get a beautiful interface that way, just pass the name you use in the form.py Example: forms.py class NameForm(forms.ModelForm): class Meta: model = MyModel fields = [ “whatever” ] Html Template <form method=”POST”>{% csrf_token %} <input type=”text” name=”whatever” placeholder=”Write whatever”> </form> solved How can we use html for Django model form?
Based on my understanding you want to check if the type is a list and if the list’s elements is type X. You can do the following: var type = (new List<int>()).GetType(); if (type.GetInterface(“IList”) != null && type.IsGenericType && type.GenericTypeArguments.Length == 1 && type.GenericTypeArguments[0] == typeof(int)) Console.WriteLine(true); //Outputs True 3 solved Item type from a … Read more
As you yourself found out, the element is not present in the page source, and is loaded dynamically through an AJAX request. The urllib module (or requests) returns the page source, which is why you won’t be able to get that value directly. Go to Developer Tools > Network > XHR and refresh the page. … Read more
You cannot have two attributes, instead combine with ;: <div class=”user-list” (click)=”threadService.createChatWindow(); matrixService.newRoom(thread)”> </div> 0 solved Call two functions in one click [duplicate]
This is a pretty straightforward grouping problem. If you’re limited to XSLT 1.0, you need to use Muenchian Grouping. If you’re using XSLT 2.0+, you can use xsl:for-each-group. Examples… XSLT 1.0 <xsl:stylesheet version=”1.0″ xmlns:xsl=”http://www.w3.org/1999/XSL/Transform”> <xsl:output indent=”yes”/> <xsl:strip-space elements=”*”/> <xsl:key name=”class” match=”text” use=”substring-before(substring-after(normalize-space(@class), ‘ ‘),’ ‘)”/> <!–identity template–> <xsl:template match=”@*|node()”> <xsl:copy> <xsl:apply-templates select=”@*|node()”/> </xsl:copy> </xsl:template> <xsl:template … Read more
With binary search you typically search in a sorted random access data structure like an array, by discarding half of the array with each comparison. Hence, in k steps you effectively cover 2^k entries. This yields a complexity of at most log2(n) of n elements. With landau symbols, the base of the logarithm disappears because … Read more
You use post increment and decrement operator : return number++; return number–; For example here : public static int addOne(int number) { return ++number; } The value number is incremented but only as soon as the next statement. So as you return, the same value as the parameter is returned. It is the same thing … Read more