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How to determine if a number is a prime with regex?
I found the following code example for Java on RosettaCode :
4 Answers
4
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How to delete all datastore in Google App Engine?
...to the Python app engine. Does anybody know how a shortcut for doing it in Java? (In the meantime, JohnIdol's suggestion works well.)
– mgiuca
Apr 29 '11 at 7:44
2
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Making TextView scrollable on Android
...ext="@string/hello"
/>
</LinearLayout>
File WordExtractTest.java
public class WordExtractTest extends Activity {
TextView tv1;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedI...
Android: ProgressDialog.show() crashes with getApplicationContext
...show();
}
});
I don't fully understand the workings of Java so i could be wrong, but I'm guessing that for my specific situation the cause could have been related to the fact that the above snippet was defined in an Abstract Activity class; inherited and used by many Activities, ...
Does anyone still use [goto] in C# and if so why? [closed]
...block around it, etc. (see this question for details). As a side note, the Java language designers decided to ban goto completely and introduce a labeled break statement instead.
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Generate list of all possible permutations of a string
...
Some working Java code based on Sarp's answer:
public class permute {
static void permute(int level, String permuted,
boolean used[], String original) {
int length = original.length();
if (level =...
How to wait for all threads to finish, using ExecutorService?
...
@SamHarwell see the java.util.concurrent package documentation under the Timing section: To wait "forever", you can use a value of Long.MAX_VALUE
– beluchin
Aug 28 '15 at 22:01
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How to make a JTable non-editable
...ble() is false by default so you may omit it. (see: http://docs.oracle.com/javase/6/docs/api/javax/swing/table/AbstractTableModel.html)
Then use the setModel() method of your JTable.
JTable myTable = new JTable();
myTable.setModel(new MyModel());
...
how to detect search engine bots with php?
...bots:
if (preg_match('/bot|crawl|curl|dataprovider|search|get|spider|find|java|majesticsEO|google|yahoo|teoma|contaxe|yandex|libwww-perl|facebookexternalhit/i', $_SERVER['HTTP_USER_AGENT'])) {
// is bot
}
In addition I use a whitelist to block unwanted bots:
if (preg_match('/apple|baidu|bing...
Can someone explain the right way to use SBT?
...lugin("com.typesafe.sbteclipse" % "sbteclipse-plugin" % "2.1.0-RC1")
For Java-based dependencies, I use http://mvnrepository.com/ to see what's out there, then click on the SBT tab. For instance http://mvnrepository.com/artifact/net.sf.opencsv/opencsv/2.3 indicates to use:
libraryDependencies += ...