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@UniqueConstraint annotation in Java
I have a Java bean. Now, I want to be sure that the field should be unique.
8 Answers
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Long list of if statements in Java
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Instead of a HashMap you can use a Java enum, which gives you a well defined set of commands instead of a mushy map. You could have a getter in the enum: Command getCommand(); or even implement exec() as an abstract method in the enum, which each instance impl...
How to create ENUM type in SQLite?
...LUES" keyword) creates a single new row in an existing table.": sqlite.org/lang_insert.html. Break it up avoid that: INSERT INTO PriceType(Type, Seq) VALUES ('M',1); INSERT INTO PriceType(Type, Seq) VALUES ('R',2); INSERT INTO PriceType(Type, Seq) VALUES ('H',3);
– ahcox
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What is the default scope of a method in Java?
...e permissive than private scope.
More information:
http://docs.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html
http://mindprod.com/jgloss/scope.html
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Why aren't Java Collections remove methods generic?
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Josh Bloch and Bill Pugh refer to this issue in Java Puzzlers IV: The
Phantom Reference Menace, Attack of the Clone, and Revenge of The
Shift.
Josh Bloch says (6:41) that they attempted to generify the get method
of Map, remove method and some other, but "it simply did...
jQuery UI accordion that keeps multiple sections open?
...orner-bottom")
.hide();
HTML code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Toggle Panels (not accordion) using ui-accordion styles</title>
<!-- jQuery UI | http://jquery.com/ http://jqueryui.com/ http://jqueryui.co...
Groovy Shell warning “Could not open/create prefs root node …”
...egedit into the search field.
Navigate to path HKEY_LOCAL_MACHINE\Software\JavaSoft (Windows 10 seems to now have this here: HKEY_LOCAL_MACHINE\Software\WOW6432Node\JavaSoft)
Right click on the JavaSoft folder and click on New -> Key
Name the new Key Prefs and everything should work.
Alternativ...
Split string into array of character strings
...led a negative lookahead. Checkout the documentation here: docs.oracle.com/javase/6/docs/api/java/util/regex/…
– Erwin
May 28 '14 at 8:51
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Java 8: How do I work with exception throwing methods in streams?
... It's sad we have to do this instead of using our native exceptions.... oh Java, it gives and then takes away
– Erich
Feb 27 '15 at 21:29
1
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Java variable number or arguments for a method
...reat explanation of the difference here: programmerinterview.com/index.php/java-questions/…
– Dick Lucas
Aug 3 '14 at 15:25
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