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Difference between Array and List in scala
... - the immutable analog of Array is IndexedSeq).
If you are coming from a Java background, then the obvious parallel is when to use LinkedList over ArrayList. The former is generally used for lists which are only ever traversed (and whose size is not known upfront) whereas the latter should be used...
Alarm Manager Example
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MainActivity.java
package com.example.alarmexample;
import android.app.Activity;
import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.view...
How can I display a list view in an Android Alert Dialog?
...t
The way to make a traditional single-choice list is to use setItems.
Java version
// setup the alert builder
AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setTitle("Choose an animal");
// add a list
String[] animals = {"horse", "cow", "camel", "sheep", "goat"};
buil...
How to specify the default error page in web.xml?
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java.sun.com/xml/ns/javaee/web-app_2_5.xsd specifies no <description> child for the <error-page> element, so pasting the above code as-is in a Servlet 2.5 web.xml will cause XSD validation errors. If I comment the...
Closing JDBC Connections in Pool
...order in the finally block of the try block where you've acquired them. In Java 7 this can be further simplified by using try-with-resources statement.
Is the following method anything close to standard? Looks like an attempt to get a connection from the pool, and if DataSource cannot be establish...
How to add Action Bar from support library into PreferenceActivity?
...te;
}
}
No more hacking. Code taken from AppCompatPreferenceActivity.java.
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Can you make just part of a regex case-insensitive?
...single-line mode and multi-line mode.
Not all regex flavors support this. JavaScript and Python apply all mode modifiers to the entire regular expression. They don't support the (?-ismx) syntax, since turning off an option is pointless when mode modifiers apply to the whole regular expressions. All...
Which is the correct shorthand - “regex” or “regexp” [closed]
... as 1991. (http://groups.google.com/group/misc.misc/msg/e75ca9cb78220ea0?)
JavaScript and Ruby both have Regexp or RegExp in their standard libraries.
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Why does the arrow (->) operator in C exist?
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@Shahbaz That may be the case for a java programmer, a C/C++ programmer will understand a.b.c.d and a->b->c->d as two very different things: The first is a single memory access to a nested sub-object (there is only a single memory object in this case),...
OnCreateOptionsMenu() not called in Fragment
...t app crashes with 11-27 01:55:34.468: E/AndroidRuntime(12294): Caused by: java.lang.ClassCastException: com.android.internal.view.menu.MenuItemImpl cannot be cast to android.widget.SearchView
– Android_programmer_office
Nov 26 '13 at 20:26
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