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UITableViewCell, show delete button on swipe
...ViewController, UITableViewDelegate, UITableViewDataSource {
// These strings will be the data for the table view cells
var animals: [String] = ["Horse", "Cow", "Camel", "Pig", "Sheep", "Goat"]
let cellReuseIdentifier = "cell"
@IBOutlet var tableView: UITableView!
override fu...
How to view files in binary from bash?
...
vi your_filename
hit esc
Type :%!xxd to view the hex strings, the n :%!xxd -r to return to normal editing.
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How to instantiate non static inner class within a static method?
...nerTwo(); //same as this.new InnerTwo()
}
public static void main(String args[]) {
MyClass outer = new MyClass();
InnerTwo x = outer.new InnerTwo(); // Have to set the hidden pointer
InnerOne y = new InnerOne(); // a "static" inner has no hidden pointer
Inn...
How to get Last record from Sqlite?
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To get last record from your table..
String selectQuery = "SELECT * FROM " + "sqlite_sequence";
Cursor cursor = db.rawQuery(selectQuery, null);
cursor.moveToLast();
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round() doesn't seem to be rounding properly
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According to the docs, this style of string formatting will eventually go away. The new-style format would be "{:.1f}".format(n)
– whereswalden
Aug 7 '14 at 12:56
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Read each line of txt file to new array element
...e_get_contents('foo.txt'));
file_get_contents() - gets the whole file as string.
explode("\n") - will split the string with the delimiter "\n" - what is ASCII-LF escape for a newline.
But pay attention - check that the file has UNIX-Line endings.
if "\n" will not work properly you have a other...
How to compare two dates in php
...DateTime("2009-10-11");
$date2 = new DateTime("tomorrow"); // Can use date/string just like strtotime.
var_dump($date1 < $date2);
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How to get thread id from a thread pool?
...rt java.util.concurrent.*;
class ThreadIdTest {
public static void main(String[] args) {
final int numThreads = 5;
ExecutorService exec = Executors.newFixedThreadPool(numThreads);
for (int i=0; i<10; i++) {
exec.execute(new Runnable() {
public void run() {
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Add up a column of numbers at the Unix shell
...nt(x) for x in sys.stdin))" Traceback (most recent call last): File "<string>", line 1, in <module> File "<string>", line 1, in <genexpr> ValueError: invalid literal for int() with base 10: '\n'
– don bright
Jun 28 at 1:10
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Rails migration: t.references with alternative name?
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You can do it this way:
create_table :courses do |t|
t.string :name
t.references :transferrable_as
t.references :same_as
t.timestamps
end
or using t.belongs_to as an alias for t.references
You can't add foreign_key: true to those two references lines. If you want to mark t...