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Why should a Java class implement comparable?
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Here is a real life sample. Note that String also implements Comparable.
class Author implements Comparable<Author>{
String firstName;
String lastName;
@Override
public int compareTo(Author other){
// compareTo should return < 0...
How do I move a redis database from one server to another?
...file named dump.rdb in the same folder as your redis server. See a list of all server commands.
Copy this dump.rdb to the other redis server you want to migrate to. When redis starts up, it looks for this file to initialize the database from.
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bash: Bad Substitution
...ed and the script will be interpreted by dash, which does not support that string substitution syntax.
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How to decompile an APK or DEX file on Android platform? [closed]
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DecompileAndroid unfortunately doesn't decompile strings.xml correctly
– goRGon
Feb 5 '15 at 19:50
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Access restriction: The type 'Application' is not API (restriction on required library rt.jar)
...search.
Background: Eclipse access restrictions
Eclipse has a mechanism called access restrictions to prevent you from accidentally using classes which Eclipse thinks are not part of the public API. Usually, Eclipse is right about that, in both senses: We usually do not want to use something which...
Difference between jar and war in Java
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You add web components to a J2EE application in a package called a web application archive (WAR), which is a JAR similar to the package used for Java class libraries. A WAR usually contains other resources besides web components, including:
Server-side utility classes (database bean...
Why doesn't a python dict.update() return the object?
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Also, if the keys in award_dict are not string the interpreter will throw a TypeError
– kunl
Aug 1 '15 at 14:59
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What's the difference between TRUNCATE and DELETE in SQL
...nces highlighted below.
General Overview
If you want to quickly delete all of the rows from a table, and you're really sure that you want to do it, and you do not have foreign keys against the tables, then a TRUNCATE is probably going to be faster than a DELETE.
Various system-specific issues h...
How do I use variables in Oracle SQL Developer?
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If comparing &&value1 to a string value like: &&value1 = 'Some string' then &&value1 needs to be wrapped in single quotes like: '&&value1' = 'Some string'
– Ryan E
Mar 5 '14 at 21:29
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Remove shadow below actionbar
...PDATE:
As @Quinny898 stated, on Android 5.0 this has changed, you have to call setElevation(0) on your action bar. Note that if you're using the support library you must call it to that like so:
getSupportActionBar().setElevation(0);
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