To restart from scratch : What I understand your question should have been : I have a sequence of Strings and want to check the difference between them. Whenever a line is the same as the previous one, i want to increment a counter (that counted the occurence of that line). Whenever a new line … Read more
The test (result != X_WON || result != O_WON || result != DRAW) is always true, since result can’t be equal to all 3 values. result should be initialised to UNFINISHED and the test changed to: (taken != 9 && result == UNFINISHED) 0 solved game does not allow you to win
You have a couple of problems with your code. First, you should stop the loop before i has the value list.size(). (Actually, since the index of the element is not used, you can use an enhanced for loop, which is what I show below.) Second, you need to test for the condition you want, not … Read more
Before mapToDouble you have to use flatMap like this: return collection1.stream() .flatMap(cA -> cA.getCollectionB().stream()) .mapToDouble(ObjectB::getSalary) .sum(); Or you can use map before the flatMap: return collection1.stream() .map(ObjectA::getCollectionB) .flatMap(List::stream) .mapToDouble(ObjectB::getSalary) .sum(); Of you can use flatMapToDouble directly as @Naman mentioned: return collection1.stream() .flatMapToDouble( cA -> cA.getCollectionB().stream().mapToDouble(ObjectB::getSalary) ).sum(); 5 solved Calculate the sum of a field contained … Read more
The problem here is that you are referencing two completely different objects. In viewDidLoad you create ThongTinBNPage2 viewController and then add it to the viewControllers property of the pageViewController. However, the objects stored in VCArr are two totally different viewControllers. Let’s think about it this way: When viewDidLoad is called you create viewController object #1 … Read more
Your problem is that while the generic parameter of TreeNode is Comparable, the class itself is not. Change this: public static class TreeNode<E extends Comparable<E>> { To this: public static class TreeNode<E extends Comparable<E>> implements Comparable<TreeNode<E>> { Or if you don’t require the generic type to also be Comparable: public static class TreeNode<E> implements Comparable<TreeNode<E>> … Read more
It appears that variable is an array that stores references (URIs, or paths) to images, that is fed to the src attribute of an image element, <img>. The script simple does the following logic: When the function is fired, it increments index by 1 If index is equal to the number of images, you return … Read more
age = “” try: age = self.age_var.get() except ValueError: showinfo(“Error:”, “Please Enter A Number In Age Field.”) Have a look Here 9 solved Getting UnboundLocalError: local variable ‘age’ referenced before assignment error
I’m not sure if I understand the question properly, but here’s how you can declare an argument that is a function taking two arguments – any and string – and returning void (that’s what I think the type of the function should be when I look at your code): return function (boundTransportFn: (a: any, key: … Read more
Dictionarys are mappings from a key to a value. ContainsKey() checks if your dictionary contains a certain key, it is very fast – looking up keys (and finding the data associated with that key) is the main strength of dictionaries. You might need this, to avoid accessing a non-existent Key – read about TryGetValue() in … Read more
It’s pretty simple to remove: Click in Windows’ search field, type Cleanup, then click Disk Cleanup. Click the “Clean up system files” button. Wait a bit while Windows scans for files, then scroll down the list until you see “Previous Windows installation(s).” Select Previous Windows installation and anything else you want to remove and select … Read more
Here is working version, from bs4 import BeautifulSoup import requests import csv with open(‘urls.csv’, ‘r’) as csvFile, open(‘results.csv’, ‘w’, newline=””) as results: reader = csv.reader(csvFile, delimiter=”;”) writer = csv.writer(results) for row in reader: # get the url url = row[0] # fetch content from server html = requests.get(url).content # soup fetched content soup = BeautifulSoup(html, … Read more
Well , you can create a new array to put the numbers shifted so you dont get confused with the temps and simplify your code: int new_array[n]; for(int i=0;i<n;i++){ new_array[(i+m)%n]=array[i]; } solved Program to shift elements in an array (Not getting correct output) [closed]
You can use Dynamic Adaptive Streaming over HTTP (DASH) or HTTP Live Streaming(HLS) for rich and smoother streaming. Google has an advanced library called exoplayer for this purpose. Try exoplayer for the purpose. The library and demo is available here The docs are available here The developer guide is available here 3 solved How to … Read more
You are getting that error simple because you are using a newer version of php that does not support mysql_* functions, those functions have been depreciated and completely removed from the latest version of php. You should use mysqli prepared functions or pdo prepared statements. using mysqli to connect to database you will use it … Read more