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Eclipse - no Java (JRE) / (JDK) … no virtual machine
...
All the other answers about setting only the JAVA_HOME are not entirely right. Eclipse does namely not consult the JAVA_HOME. Look closer at the error message:
...in your current PATH
It literally said PATH, not JAVA_HOME.
Rightclick My Computer and choose Properties...
Why the switch statement cannot be applied on strings?
...er the string if you are using a predetermined set of strings:
enum string_code {
eFred,
eBarney,
eWilma,
eBetty,
...
};
string_code hashit (std::string const& inString) {
if (inString == "Fred") return eFred;
if (inString == "Barney") return eBarney;
...
}
voi...
Checkout one file from Subversion
... you have Subversion 1.5+, then do a sparse checkout:
svn checkout <url_of_big_dir> <target> --depth empty
cd <target>
svn up <file_you_want>
For an older version of SVN, you might benefit from the following:
Checkout the directory using a revision back in the distant pa...
Find integer index of rows with NaN in pandas dataframe
....:
df['a'].ix[index[0]]
>>> 1.452354
For the integer index:
df_index = df.index.values.tolist()
[df_index.index(i) for i in index]
>>> [3, 6]
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...
Android search with Fragments
...le activity and delivers it the search
query in an Intent with the ACTION_SEARCH action. Your searchable
activity retrieves the query from the intent's QUERY extra, then
searches your data and presents the results.
The underlying, internal system that is responsible for providing search resu...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
...V8's source, both implemented in JS itself:
function ArrayPop() {
if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) {
throw MakeTypeError("called_on_null_or_undefined",
["Array.prototype.pop"]);
}
var n = TO_UINT32(this.length);
if (n == 0) {
...
Why doesn't Java allow to throw a checked exception from static initialization block?
...va.lang.ExceptionInInitializerError.
Sample code:
protected static class _YieldCurveConfigHelperSingleton {
public static YieldCurveConfigHelper _staticInstance;
static {
try {
_staticInstance = new YieldCurveConfigHelper();
}
catch (IOException | SAXE...
Https Connection Android
...rify the host - dont check for certificate
final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
};
/**
* Trust every server - dont check for any certificate
*/
private static void trustAl...
Different types of thread-safe Sets in Java
...e look up time would be O(lg n) and not O(n).
– akhil_mittal
Dec 28 '17 at 4:58
...
what is reverse() in Django
...t's suppose that in your urls.py you have defined this:
url(r'^foo$', some_view, name='url_name'),
In a template you can then refer to this url as:
<!-- django <= 1.4 -->
<a href="{% url url_name %}">link which calls some_view</a>
<!-- django >= 1.5 or with {% load ur...