[ad_1] Imagine a circle of radius r. It is like a regular polygon with an infinite number of sides. Trigonometry tells us: x = r * cos(a); y = r * sin(a); We know there are 360 degrees or 2pi radians in a circle. So to draw it we would start with angle = 0, … Read more
[ad_1] You would have to do something like this as having an else if after an else for the same block will cause you issues. If this is not the behavior you are looking for please supply more info and I’ll try to help 🙂 int a, b, c; Scanner scan = new Scanner(System.in); System.out.println(“Inserire … Read more
[ad_1] You can simply work with regular expressions. Something like: if(vehicleId.matches(“^[A-Z]{3}\d{4}$”)) (Assuming the id contains three capital letters followed by four digits.) This will return a boolean if vehicleId, supposedly a variable holding the user’s input, is matched. 2 [ad_2] solved How can I check if a String contains X letters and Y numbers? [closed]
[ad_1] When it comes to “current date or time”, it means “randomness”. The reason of the different output of your code is not multi threads, but the new java.util.Date() Thread switching can cause randomness also, but it is very easy to avoid because of the existence of locks. Your code also has lock by using … Read more
[ad_1] Use this code: @Override public void onClick(View view) { // TODO Auto-generated method stub //public void work (View view){ Intent intent = new Intent(PDFtester.this, copyAsset.class); startActivity(intent);} } Note :- Interfaces like OnClickListener,OnTouchListener etc don’t use this for getting Context try to use YourActivity.this or getApplicationContext() 2 [ad_2] solved calling a method from an onClick … Read more
[ad_1] By assuming that you have an array like arr[n]: You can define another array to keep differences like diff[n-1] and then you just need a loop like: for(i=0; i<n-1; i++) { diff[i] = abs(arr[i]-arr[i+1]); } Don’t forget to include <stdio.h> and <stdlib.h>. 0 [ad_2] solved Absolute difference between consecutive array elements
[ad_1] I don’t think, this is your full code, but what I can see you have never set $_POST[‘sendemail’] so if(isset($_POST[‘sendemail’])) { will never be true. EDIT Just see the code below, I made 3 comments. <?php // 1. ————-↓ Change sendemail to submit if(isset($_POST[‘submit’])) { // EDIT THE 2 LINES BELOW AS REQUIRED $email_to … Read more
[ad_1] Your code below seems to be working. What I have done is clean up some of your CSS. There is no such thing as border-layout though (so I’ve removed it). function func() { document.getElementById(“paragraph”).innerHTML = document.getElementById(“input”).value; } #input { height: 30px; width: 480px; } #paragraph { color: green; } .mybutton { border-radius: 0px; border: … Read more
[ad_1] If you are saying that list->at(0) returns NULL Then the pointer pEnd will be NULL. Therefore doing this *pEnd is de-referencing a NULL pointer which will obviously seg fault. If you want to chek for this, you could check the pointer before de-referencing. for eg: if(pEnd == NULL) //Do nothing or throw error or … Read more
[ad_1] You can use fixed-top <html> <head> <meta charset=”UTF-8″> <title>fish</title> <link rel=”stylesheet” href=”https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css” integrity=”sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh” crossorigin=”anonymous”> <script src=”https://code.jquery.com/jquery-3.4.1.slim.min.js” integrity=”sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n” crossorigin=”anonymous”></script> <script src=”https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js” integrity=”sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo” crossorigin=”anonymous”></script> <script src=”https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js” integrity=”sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6″ crossorigin=”anonymous”></script> </head> <body> <header> <img> <nav class=”navbar fixed-top navbar-expand-lg navbar-light bg-light”> <a class=”navbar-brand” href=”#”></a> <button class=”navbar-toggler” type=”button” data-toggle=”collapse” data-target=”#navbarNavDropdown” aria-controls=”navbarNavDropdown” aria-expanded=”false” aria-label=”Toggle navigation”> <span class=”navbar-toggler-icon”></span> </button> <div class=”collapse navbar-collapse” … Read more
[ad_1] Since all the links have a class in common (class=”blue”), you can select all the web elements using this code, and then get the “href” attribute values: elements = driver.find_elements_by_class_name(‘blue’); urls = [elements.get_attribute(‘href’) for elements in elements] I recommend this site if you want to learn more about Selenium Python : Learn to Locate … Read more
[ad_1] You have a question in the format “No A is within a class B”. The algorithm for such problem is bool wrong = false; while ( /* there is another A */ ) { if ( /* check if it is NOT within a class */ ) { wrong=true; break; } } if (wrong) … Read more
[ad_1] You can simply write: figure(‘Units’,’inches’); b1 = subplot(2,2,1); b2 = subplot(2,2,2); b3 = subplot(2,2,3); b4 = subplot(2,2,4); or preferably, if you want to have an array of the axes: figure(‘Units’,’inches’); b(1) = subplot(2,2,1); b(2) = subplot(2,2,2); b(3) = subplot(2,2,3); b(4) = subplot(2,2,4); or use a simple for loop: figure(‘Units’,’inches’); b(1:4) = axes; for k … Read more
[ad_1] This should solve your problem. Input file: 1234 5678 Code: with open(‘a.txt’) as if1: for everyline in if1: everylineactual = everyline.rstrip(‘\n’) everylineactual = “‘,'”.join(everylineactual) everylineactual = f”‘{everylineactual}’\n” with open(‘b.txt’,’a’) as of: of.write(everylineactual) Output file: ‘1’,’2′,’3′,’4′ ‘5’,’6′,’7′,’8′ 0 [ad_2] solved How do you read a file then output the integers as ‘1’ in txt
[ad_1] Try this, hope you might get some idea how to design emojis. [class^=”emoji”]{ width: 50px; height: 50px; background: #9E9E9E; display: inline-block; border-radius: 5px; position:relative; } .emoji1:before { content: “”; position: absolute; width: 10px; height: 10px; background: #000; border-radius: 25px; left: 10px; top: 10px; } .emoji1:after { content: “”; position: absolute; width: 10px; height: 10px; … Read more