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What Makes a Method Thread-safe? What are the rules?
...unction () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f9848067%2fwhat-makes-a-method-thread-safe-what-are-the-rules%23new-answer', 'question_page');
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...
A KeyValuePair in Java [duplicate]
...main-specific class, to be OO. In the simplemost case, it is just giving a new name to class and the two elements.
– foo
Jun 29 '17 at 17:48
...
How can I get device ID for Admob
...t.digest();
// Create Hex String
StringBuffer hexString = new StringBuffer();
for (int i = 0; i < messageDigest.length; i++) {
String h = Integer.toHexString(0xFF & messageDigest[i]);
while (h.length() < 2)
h = "0" + h;
...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
...blies; one
of these assemblies is marked as
version 1.0 since it’s a new assembly
that didn’t ship in version 1.0 of the
same product. Typically, you set the
major and minor parts of this version
number to represent the public version
of your product. Then you increment
the build...
Detect backspace in empty UITextField
...long shot but it could work. Try setting the text field's text to a zero width space character \u200B. When backspace is pressed on a text field that appears empty, it will actually delete your space. Then you can just reinsert the space.
May not work if the user manages to move the caret to the...
How to click or tap on a TextView text
...tView) findViewById(R.id.boilingpointK);
boilingpointK.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if ("Boiling Point K".equals(boilingpointK.getText().toString()))
boilingpointK.setText("2792");
else if ("2792".equals(...
Why always ./configure; make; make install; as 3 separate steps?
...target is all, but not always. So you could only make all install if you knew that was the target.
So ...
#!/bin/sh
if ./configure $*; then
if make; then
make install
fi
fi
or:
./configure $* && ./make && ./make install
The $* is included because one often has to pro...
How to increase font size in a plot in R?
...
Did you read help(par) about ps? Does not seem text-related as far as I can tell.
– Dirk Eddelbuettel
Nov 22 '10 at 2:51
...
PG::ConnectionBad - could not connect to server: Connection refused
...
It could be as simple as a stale PID file. It could be failing silently because your computer didn't complete the shutdown process completely which means postgres didn't delete the PID (process id) file.
The PID file is used by postgres to make sure only on...
Debugging in Clojure? [closed]
...u can step expression by expression inside an Emacs buffer and even inject new values. You can read all about it here. A demo screenshot:
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