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What is the difference between Reader and InputStream?
... text, this is the stream to use.
You can wrap an InputStream and turn it into a Reader by using the InputStreamReader class.
Reader reader = new InputStreamReader(inputStream, StandardCharsets.UTF_8);
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Why does the expression 0 < 0 == 0 return False in Python?
Looking into Queue.py in Python 2.6, I found this construct that I found a bit strange:
9 Answers
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JOIN two SELECT statement results
...record is a separate task, with deadlines (and a PALT , which is just an INT of days from start to deadline. Age is also an INT number of days.)
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Move branch pointer to different commit without checkout
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So easy! I may have just converted from gitg to gitk.
– Michael Cole
Jun 3 '16 at 19:58
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What is the difference between JVM, JDK, JRE & OpenJDK?
...exe), Java application launcher (java.exe), Appletviewer, etc…
Compiler converts java code into byte code. Java application launcher opens a JRE, loads the class, and invokes its main method.
You need JDK, if at all you want to write your own programs, and to compile them. For running java progr...
Focusable EditText inside ListView
..., but it works for me, and gives a pretty solid user experience. I looked into the code for ListView to see why the two behaviors are so different, and came across this from ListView.java:
public void setItemsCanFocus(boolean itemsCanFocus) {
mItemsCanFocus = itemsCanFocus;
if ...
Right query to get the current number of connections in a PostgreSQL DB
... * from
(select count(*) used from pg_stat_activity) q1,
(select setting::int res_for_super from pg_settings where name=$$superuser_reserved_connections$$) q2,
(select setting::int max_conn from pg_settings where name=$$max_connections$$) q3;
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When should I use C++ private inheritance?
Unlike protected inheritance, C++ private inheritance found its way into mainstream C++ development. However, I still haven't found a good use for it.
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How to 'insert if not exists' in MySQL?
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use INSERT IGNORE INTO table
see http://bogdan.org.ua/2007/10/18/mysql-insert-if-not-exists-syntax.html
there's also INSERT … ON DUPLICATE KEY UPDATE syntax, you can find explanations on dev.mysql.com
Post from bogdan.org.ua according t...
What is the purpose of the “final” keyword in C++11 for functions?
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Thanks! this is the point I was missing : ie that even your "leaf" classes need to mark their function as virtual even if they intend to override functions, and not to be overridden themselves
– lezebulon
Jan...