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How to loop through a HashMap in JSP?
...
Just the same way as you would do in normal Java code.
for (Map.Entry<String, String> entry : countries.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
// ...
}
However, scriptlets (raw Java code in JSP files, those <%...
How do I add a Maven dependency in Eclipse?
...ith the latest version of Eclipse and m2e you can right click on a regular Java project and enable Dependency Management for it. This will generate a pom.xml for the project, while leaving its structure intact.
– Perception
Feb 8 '12 at 5:40
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C++ Modules - why were they removed from C++0x? Will they be back later on?
... (March 2016).
Wording for Modules published as P0143R2 (March 2016).
The clang team has published a second revision of their changes: P0273R1 (October 2016).
The following blog posts contain a summary of the standards meetings and in particular a summary of the current status of the modules draft...
@Basic(optional = false) vs @Column(nullable = false) in JPA
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@Xie Jilei: From book: Java persistence with hibernate 2007, p. 179: @Basic(optional = false) @Column(nullable = false) The @Basic annotation marks the property as not optional on the Java object level. The second setting, nullable = false on the...
Getting the difference between two sets
...a nice feature to have the set operations like union , difference built in java. The above solution will modify the set , in many situations we don't really want that.
– Praveen Kumar
Jul 18 '14 at 8:09
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Sending files using POST with HttpURLConnection
...ith some parameter using MultipartUtility in simple way.
MultipartUtility.java
public class MultipartUtility {
private final String boundary;
private static final String LINE_FEED = "\r\n";
private HttpURLConnection httpConn;
private String charset;
private OutputStream output...
Difference between abstract class and interface in Python
...se Python doesn't have (and doesn't need) a formal Interface contract, the Java-style distinction between abstraction and interface doesn't exist. If someone goes through the effort to define a formal interface, it will also be an abstract class. The only differences would be in the stated intent ...
Should I return a Collection or a Stream?
..., where the data arrives with random latency. For that, I would suggest RxJava.
– Brian Goetz
Jul 10 '14 at 18:38
4
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Basic example of using .ajax() with JSONP?
... that's the final "callback=?" in the url.
<!DOCTYPE html>
<html lang="en">
<head>
<title>JQuery (cross-domain) JSONP Twitter example</title>
<script type="text/javascript"src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"><...
Maximum length for MD5 input/output
...ong as the used datatype in the programming language used can be. Example: Java's strings use an array internally, therefore, a string can only contain (2^31)-1 characters (or less, depending on the heap size).That would also be your maximum input for the MD5 function in Java. But pure theoretically...