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When should a class be Comparable and/or Comparator?
...tor vs Comparable
Comparable
A comparable object is capable of comparing itself with another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances.
Comparator
A comparator object is capable of comparing two different objects. The...
Android on-screen keyboard auto popping up
One of my apps has an "opening screen" (basically a menu) that has an EditText followed by several Button s. The problem is that several of my users are reporting that when they open the app it's automatically popping up the on-screen keyboard without them even touching the EditText . As far as ...
Using CSS to affect div style inside iframe
Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?
13 Answers
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Read data from SqlDataReader
I have a SQL Server 2008 database and I am working on it in the backend. I am working on asp.net/C#
13 Answers
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How do DATETIME values work in SQLite?
...ing Android apps and need to save date/time of the creation record. The SQLite docs say, however, "SQLite does not have a storage class set aside for storing dates and/or times" and it's "capable of storing dates and times as TEXT, REAL, or INTEGER values".
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Is GET data also encrypted in HTTPS?
...used by all modern mainstream browsers, though some only on newer OSes.
EDIT: (Since this just got me a "Good Answer" badge, I guess I should answer the entire question…)
The entire response is also encrypted; proxies cannot intercept any part of it.
Google serves searches and other content ove...
How to limit setAccessible to only “legitimate” uses?
....reflect.AccessibleObject.setAccessible , the more astonished I am at what it can do. This is adapted from my answer to the question ( Using reflection to change static final File.separatorChar for unit testing ).
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Does the default constructor initialize built-in types?
Does the default constructor (created by the compiler) initialize built-in-types?
7 Answers
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How do I hide .class files from the Open Resource dialog in Eclipse?
I won't want to have edit any working sets. I just want a way to, across all workspaces and projects, prevent .class files from ever showing in the Open Resource Dialog. Is there a way to do this?
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Error Code: 1005. Can't create table '…' (errno: 150)
...Code: 1005 -- there is a wrong primary key reference in your code
Usually it's due to a referenced foreign key field that does not exist. It might be you have a typo mistake, or check case it should be same, or there's a field-type mismatch. Foreign key-linked fields must match definitions exactly....