Month: January 2023

[Solved] Can’t seems to inherit a protected variable

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Yes, a B can access protected members of an A. But it’s the fact that you’re going through v3 that makes it essentially irrelevant that this attempt is made from within a member function of B. It’s v3 trying to make the access, not B::calculate, and v3 is not a B&. [C++11: 11.4/1]: [..] All … Read more

[Solved] Create a file in c#

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You can use this possible way: using System; using System.IO; namespace CreateFile { class MainClass { public static void Main (string[] args) { Console.WriteLine (“Enter the File name:”); string filename = Console.ReadLine (); FileInfo fi = new FileInfo(@”G:\New folder (5)\” + filename + “.txt”); //You can use any extension to create respective file. StreamWriter sw; … Read more

[Solved] Why we need to install virtualenv and virtualenvwrapper

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Going through the comments and answers I came to conclution that- At first we have to install virtual environment to isolate my project settings from system’s settings. Here settings refer to Various packages with different versions. This isolation helps to prevent any conflict between systems setting and projects settings. Also there can be multiple projects. … Read more

[Solved] Implementing the Comparator interface [duplicate]

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Here’s a Comparator inner class from my little project DBvolution: private static class ClassNameComparator implements Comparator<Class<?>>, Serializable { private static final long serialVersionUID = 1L; ClassNameComparator() { } @Override public int compare(Class<?> first, Class<?> second) { String firstCanonicalName = first.getCanonicalName(); String secondCanonicalName = second.getCanonicalName(); if (firstCanonicalName != null && secondCanonicalName != null) { return firstCanonicalName.compareTo(secondCanonicalName); … Read more

[Solved] check radio button when the mouse is over it [closed]

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<!DOCTYPE html> <html> <head> <meta charset=”utf-8″> <meta name=”viewport” content=”width=device-width”> <title>JS Bin</title> <style> </style> </head> <body> <label> <input type=”radio” name=”photo” data-image=”http://placehold.it/350×150″ class=”radio-hover”> Option – 1 </label> <label> <input type=”radio” name=”photo” data-image=”http://placehold.it/250×150″ class=”radio-hover”> Option – 2 </label> <br> <img src=”http://placehold.it/350×150″ class=”photo1″ alt=””> <script src=”https://code.jquery.com/jquery-3.1.0.js”></script> <script> $(“.radio-hover”).hover(function(){ var imageUrl = $(this).data(“image”); $(“img”).show(); $(“img”).attr(“src”,imageUrl); },function(){ $(“img”).hide(); }); </script> </body> … Read more

[Solved] Need explanation of an expression

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At first glance, this appears to simplify to if (a == 0) a = b; However, if a is a NaN, this simplification gives different results. Any comparison with a NaN is false, so the more complicated expression will assign b to a if a is zero or a NaN. 2 solved Need explanation of … Read more

[Solved] SQL statement for getting top 5

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If I understand correctly, you want the top 5 countries that appear the most times in the ads table, and for each one of those countries you want to display its most frequent section. The query below selects the top 5 countries by grouping the ads table by country and ordering the count and uses … Read more

[Solved] How to import a String from a a different Class

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This has to do with the scope of your variables. You can find more informatnion here. Currently the variables stored in class A have package-private scope. There are really two ways to do what you are describing. The better solution would be to provide a getter method within classA: public String getA(){ return this.A; } … Read more

[Solved] How do I create a new file and write the integers to a file using an array?

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Use this simple utility. Easiest way to write ints to file public class WriteInts { private String fname; public WriteInts(String fname) { this.fname = fname; } public void write(int… a) throws IOException { File file = new File(fname); try { System.out.println(“WRiting to-” + file.getAbsolutePath()); if (!file.exists()) file.createNewFile(); file.canRead(); } catch (IOException x) { x.printStackTrace(); } … Read more

[Solved] get title from heading tag

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For the given html, the following will print the content inside each heading. var headings = document.getElementsByTagName(‘h1’); for(i=0;i<headings.length;i++){ console.log(headings[i].innerHTML); } solved get title from heading tag

[Solved] Finding consecutive letters in a list [closed]

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def consecutiveLetters(word): currentMaxCount = 1 maxChar=”” tempCount = 1 for i in range(0, len(word) – 2): if(word[i] == word[i+1]): tempCount += 1 if tempCount > currentMaxCount: currentMaxCount = tempCount maxChar = word[i] else: currentMaxCount = 1 return [maxChar,tempCount] result = consecutiveLetters(“TATAAAAAAATGACA”) print(“The max consecutive letter is “, result[0] , ” that appears “, result[1], ” … Read more