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How to pass arguments from command line to gradle
... program with two arguments, args[0] and args[1]:
public static void main(String[] args) throws Exception {
System.out.println(args);
String host = args[0];
System.out.println(host);
int port = Integer.parseInt(args[1]);
my build.gradle
run {
if ( project.hasProperty("appArgs...
NameValueCollection vs Dictionary [duplicate]
...
NameValueCollection is string typed whereas Dictionary leverages generics to allow type variance. See Benefits of Generics.
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Java heap terminology: young, old and permanent generations?
...ce for class definitions and related data. In Java 6 and earlier, interned strings were also stored in the permanent generation. In Java 7, interned strings are stored in the main object heap.
Here is a good post on permanent generation.
I like the descriptions given for each space in Oracle's gui...
Order a MySQL table by two columns
...t`,
`date` AS `date`,
MATCH (`text`) AGAINST (:string) AS `match`
FROM int_art_fulltext
WHERE MATCH (`text`) AGAINST (:string IN BOOLEAN MODE)
LIMIT 0,101
) t,
(
SELECT @row := 0
) r
ORD...
Creating a zero-filled pandas data frame
... try this:
d = pd.DataFrame(0, index=np.arange(len(data)), columns=feature_list)
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Pinging servers in Python
...ll. This avoids shell injection vulnerability in cases where your hostname string might not be validated.
import platform # For getting the operating system name
import subprocess # For executing a shell command
def ping(host):
"""
Returns True if host (str) responds to a ping request....
How does git compute file hashes?
... $(printf "\0$s" | wc -c). Note the added empty character. That is, if the string is 'abc' with the added empty character in front the length would yield 4, not 3. Then the results with sha1sum matches git hash-object.
– Michael Ekoka
Apr 11 '17 at 10:24
...
Computed read-only property vs function in Swift
...A) -> Bool) -> (A) -> (Bool) {
return { !f($0) }
}
extension String {
func isEmptyAsFunc() -> Bool {
return isEmpty
}
}
let strings = ["Hello", "", "world"]
strings.filter(fnot(fflat(String.isEmptyAsFunc)))
...
How to create a windows service from java app
...ith using Procrun, your start and stop methods must accept the parameters (String[] argv). For example "start(String[] argv)" and "stop(String[] argv)" would work, but "start()" and "stop()" would cause errors. If you can't modify those calls, consider making a bootstrapper class that can massage ...
How to send HTTP request in java? [duplicate]
...rom here), with improvements. Included in case of link rot:
public static String executePost(String targetURL, String urlParameters) {
HttpURLConnection connection = null;
try {
//Create connection
URL url = new URL(targetURL);
connection = (HttpURLConnection) url.openConnection();...