What is the best way to convert a java.util.Date object to the new JDK 8/JSR-310 java.time.LocalDate? Answer Short answer Explanation Despite its name, java.util.Date represents an instant on the time-line, not a “date”. The actual data stored within the object is a long count of milliseconds sinc…
Tag: java
Simple way templating multiline strings in java code
I’m often run in to the following situation: I have long multiline strings where properties must be injected – e.g. something like templating. But I don’t want to inlcude a complete templating engine (like velocity or freemarker) in my projects. How can this be done in a simple way: Answer Y…
PdfCopy and form values with iText: form values not visible
Chapter 6 of iText in action describes how to replicate a page using PdfSmartCopy / PdfCopy: public void addDataSheets(PdfCopy copy) throws SQLException, IOException, DocumentException { …
The Running Time For Arrays.Sort Method in Java
Does anyone know the running time in big O notation for the arrays.sort java method? I need this for my science fair project. Answer From official docs I’ve observed that there are primarily two approaches. So, it depends on what you are sorting and what overloaded method from sort family of methods you…
Ternary Operators Java [duplicate]
This question already has answers here: Ternary Operator (4 answers) Closed 5 months ago. Is there a way to implement this in a ternary operation. I’m very new to that ternary stuff, maybe you could guide me. This one doesn’t seem to work. Answer In this case, you don’t even need a ternary o…
Maven Bundle Plugin: Export has private references
After updating the maven-bundle-plugin from version 2.3.5 to version 2.4.0 running mvn clean install outputs some warning messages, which I don’t fully understand. E.g. Export ch.entwine.weblounge.contentrepository.impl.index, has 1, private references [org.elasticsearch.action.bulk] I guess this has so…
JavaFX menu item show shortcuts on right hand side
Take for example the menu items from the edit menu in JavaFX Scene Builder See how they display the shortcuts on the right? Is there any easy way to achieve the same effect using JavaFX? Thanks. Answer You can add an accelerator key in scene builder or add it directly in the fxml file like so KeyCodeCombinati…
Java Compilation vs Perl Compilation
How different is the compilation procees of Java and Perl ? Both produce a byte code but what happens after that? Is the interpretation in perl and conversion from object code to machine code in java is all that is different? If so then why cant Java be a scripting language? Answer The first thing to note is …
BasicAuthentication in android for webview not working
Hi I want to open this url http://3864.cloud-matic.net/ from my android webview and I have tried many ways but the app even not opens mainActivity. What I have tried is below. Please give me idea where I am wrong. Ali Answer This is most voted solution there I am not sure where to set the URL to open.Please s…
SSLHandshakeException Trust anchor for certification path not found Android HTTPS
I’m trying to establish a connection to a HTTPS site and I got this exception: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found. My original code is as follows: Then, I read Google’s article here and modified my code …