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How to get the last value of an ArrayList
....size() - 1);
E is the element type. If the list is empty, get throws an IndexOutOfBoundsException. You can find the whole API documentation here.
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Using reCAPTCHA on localhost
I'm developing a website using PHP and I want to make a human verification in one of the sessions. For the development, I'm initially running the system locally and when it is ready, I'm gonna make put it on in a certain domain.
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When should I use GET or POST method? What's the difference between them?
... while a form that changes your password should use POST.
Also, note that PHP confuses the concepts a bit. A POST request gets input from the query string and through the request body. A GET request just gets input from the query string. So a POST request is a superset of a GET request; you can use...
Reset identity seed after deleting records in SQL Server
... not use a table lock, the table (heap) will contain many empty pages. For indexes, the delete operation can leave empty pages behind, although these pages will be deallocated quickly by a background cleanup process.
If the table contains an identity column, the counter for that column is re...
How can I perform a reverse string search in Excel without using VBA?
...me:
=IF(COUNTIF(A1,"* *"),RIGHT(A1,LEN(A1)-LOOKUP(LEN(A1),FIND(" ",A1,ROW(INDEX($A:$A,1,1):INDEX($A:$A,LEN(A1),1))))),A1)
[edit] I don't have enough rep to comment, so this seems the best place...BradC's answer also doesn't work with trailing spaces or empty cells...
[2nd edit] actually, it doesn...
What do querySelectorAll and getElementsBy* methods return?
...List object represents a collection of nodes. The nodes can be
accessed by index numbers. The index starts at 0.
Tip: You can use the length property of the NodeList object to determine the number of elements with a specified class name, then you can loop through all elements and extract the info y...
How to run cron job every 2 hours
...into crontab :
crontab -e
write this into the file:
0 */2 * * * python/php/java yourfilepath
Example :0 */2 * * * python ec2-user/home/demo.py
and make sure you have keep one blank line after the last cron job in your crontab file
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Check if a program exists from a Makefile
...some of the existing solutions here...
REQUIRED_BINS := composer npm node php npm-shrinkwrap
$(foreach bin,$(REQUIRED_BINS),\
$(if $(shell command -v $(bin) 2> /dev/null),$(info Found `$(bin)`),$(error Please install `$(bin)`)))
The $(info ...) you can exclude if you want this to be quiete...
Correct way to convert size in bytes to KB, MB, GB in JavaScript
I got this code to covert size in bytes via PHP.
17 Answers
17
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How to add JTable in JPanel with null layout?
... public void actionPerformed(ActionEvent ae) {
int index = plafChooser.getSelectedIndex();
try {
UIManager.setLookAndFeel(
plafInfos[index].getClassName() );
SwingU...