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Encoding as Base64 in Java
I need to encode some data in the Base64 encoding in Java. How do I do that? What is the name of the class that provides a Base64 encoder?
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Java Delegates?
Does the Java language have delegate features, similar to how C# has support for delegates?
15 Answers
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How to format a duration in java? (e.g format H:MM:SS)
...duration in seconds using a pattern like H:MM:SS. The current utilities in java are designed to format a time but not a duration.
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Grep and Sed Equivalent for XML Command Line Processing
...reat way to extract information from XML files:
xpath -q -e '/entry[@xml:lang="fr"]' *xml
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How to convert java.sql.timestamp to LocalDate (java8) java.time?
In Java 8, how can I convert a Timestamp (in java.sql ) to a LocalDate (in java.time )?
3 Answers
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Rename a file using Java
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Copied from http://exampledepot.8waytrips.com/egs/java.io/RenameFile.html
// File (or directory) with old name
File file = new File("oldname");
// File (or directory) with new name
File file2 = new File("newname");
if (file2.exists())
throw new java.io.IOException("fil...
What does Java option -Xmx stand for? [duplicate]
java -Xmx1024m filename
5 Answers
5
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SASS - use variables across multiple files
... phase it out over the next few years, and
eventually remove it from the language entirely. Prefer the @use rule
instead.
A full list of reasons can be found here
You should now use @use as shown below:
_variables.scss
$text-colour: #262626;
_otherFile.scss
@use 'variables'; // Path to _...
how to check the jdk version used to compile a .class file [duplicate]
...or this on the command line (for a class called MyClass):
On Unix/Linux:
javap -verbose MyClass | grep "major"
On Windows:
javap -verbose MyClass | findstr "major"
You want the major version from the results. Here are some example values:
Java 1.2 uses major version 46
Java 1.3 uses major v...
Why are only a few video games written in Java? [closed]
...any commercial, 3D video games (not random open source 2D ones) written in Java? In theory, it makes a lot of sense: you get a productivity boost and a cross-platform application almost for free, among other things, such as the vast amount of Java libraries, and built-in garbage collection (although...