Kirat[ad_1] To print empty elements: for (int i = 0; i < arr.length; i++) { if (arr[i] == null || arr[i].trim().isEmpty()) { System.out.println(“Element ” + i ” + ” is null or empty.”); } } The print non-empty elements: for (int i = 0; i < arr.length; i++) { if ( arr[i] != null && … Read more
[ad_1] it should be a supplier: .orElseThrow(() -> new UserNotFoundException(“User doesnt exist in system”)); 0 [ad_2] solved Error while throwing User defined exception using orElseThrow in java 8 [duplicate]
[ad_1] I’m on Windows 10. If you’re not opposed to using Windows Command Prompt, here are the steps to running this project. I don’t use Powershell but if you must, see Powershell note at bottom of my answer. Go here: https://github.com/sajib1066/django-event-management Grab this clone link: https://github.com/sajib1066/django-event-management.git Open Windows CMD prompt. Change directory to a place … Read more
[ad_1] In Java we can have (non-static) inner-classes, which seem to “behave” like having a strong-reference to their container-class and/or owner-class, but without causing memory-leak. I mean, I observed that even if both owner-class and inner-class keep strong-reference to each other, the classes are garbage-collected anyway (once no external class references them, although having reference-recursion). … Read more
[ad_1] I don’t understand how this change modifies the head too. I thought curr was just a variable. If this assignment were an assignment to curr you’d be right, and it wouldn’t mutate the list, but the assignment is not to curr, but to curr.next, and that is not a variable, but an attribute of … Read more
[ad_1] <?php $old = ‘<a href=”#next”>flow to the next</a> ‘; $new = preg_replace(‘/(<a href=”\#.*?”>)(.*?)<\/a>/is’, ‘$2’, $old); echo $new; demo [ad_2] solved php preg_replace all the link with #
[ad_1] As rafaelc suggested, you can use np.sqrt on a specific column. a = np.array([[1.,2.,3.],[1.,2.,3.]]) a[:,1] = np.sqrt(a[:,1]) a has two rows and three columns. a[:,1] is the second column. 1 [ad_2] solved Using Numpy to update one column by the square root of those column values [closed]
[ad_1] If you implement a workaround, the chances are that Apple will still reject your app anyway. Obtaining a list of applications installed on the phone is evidently disallowed. Apple has rejected apps using lots of methods to detect this: Your solution of “canOpenURL” This solution using private apis List of all apps installed on … Read more
[ad_1] For positive ? the number of executions of count = count + 1 is representative of the complexity, as the other lines of code don’t execute significantly more times. The recurrence relation can use the first iteration of the outer loop: that represents ? iterations of the inner loop. The loop continues for ?/2, … Read more
[ad_1] finally i managed to full correct my code. this is final Demo function Prev(current) { var prev_s = current.match(/\d/g); prev_s = prev_s.join(“”); prev_s–; prev_s=”P_jmp” + prev_s; document.getElementById(prev_s).scrollIntoView(); } function Next(current) { var next_s = current.match(/\d/g); next_s = next_s.join(“”); next_s++; next_s=”N_jmp” + next_s; document.getElementById(next_s).scrollIntoView(); } function btn_H_S(div_id) { document.getElementById(div_id).id = (div_id * (-1)); if (div_id … Read more
[ad_1] First of all, you need to convert milliseconds to seconds and then use the date() function with the following format: $mili = 1641951202187.3433; $sec = $mili /1000; echo date(‘M-m-Y H:i:s’,$sec); [ad_2] solved setTime() replacement in php [closed]
[ad_1] You forgot the ; before do. do counts as a new statement. Alternatively you could place the do on a new line. In my opinion, the most comfortable way to convert DOS line endings (CRLF) to Unix line endings (LF-only) is dos2unix. If you fix your ;error, using dos2unix instead of sed should be … Read more
[ad_1] You should first initialize you SQLiteDatabase, so convert this: SQLiteDatabase database; database.delete(ActivityTableDBOpenHelper.ACTIVITY_TABLE,null,null); to this: SQLiteDatabase database = new SQLiteDatabase(this); // or dbHelper.getWritableDatabase(); if you have a dbHelper database.delete(ActivityTableDBOpenHelper.ACTIVITY_TABLE,null,null); Else the database object is null and you get the error. Here you could find a whole example for all operations http://www.vogella.com/tutorials/AndroidSQLite/article.html 2 [ad_2] solved How … Read more
[ad_1] Have managed to work on a solution that suits my needs: .*item-list[\s\S]*?<\/ul> This grabs everything between item-list and the </ul>. May of use to something [ad_2] solved Regular Expression match term within ul class
[ad_1] Of course you can run java programs on windows an linux, and you can make cross platform programs in java as long as your operating system has the java runtime on it, if not… it won’t run. You don’t need to code different for windows and for linux in java, maybe just some minor … Read more