While hunting through some code I came across the arrow operator, what exactly does it do? I thought Java did not have an arrow operator. return (Collection<Car>) …

When passing a -D parameter in Java, what is the proper way of writing the command-line and then accessing it from code? For example, I have tried writing something like this...

Jan 2, 2010 · It is the Bitwise xor operator in java which results 1 for different value of bit (ie 1 ^ 0 = 1) and 0 for same value of bit (ie 0 ^ 0 = 0) when a number is written in binary form.

Dec 4, 2016 · 11 If you don`t want to create a manifest just to run the jar file, you can reference the main-class directly from the command line when you run the jar file. java -jar Predit.jar …

java -Dfile.encoding=UTF-8 … com.x.Main Charset.defaultCharset() will reflect changes to the file.encoding property, but most of the code in the core Java libraries that need to determine …

Sep 23, 2008 · Many times, a Java app needs to connect to the Internet. The most common example happens when it is reading an XML file and needs to download its schema. I am …

Feb 7, 2013 · The flag Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM), while Xms specifies the initial memory allocation pool. This means that your …

Apr 9, 2011 · I always thought that && operator in Java is used for verifying whether both its boolean operands are true, and the & operator is used to do Bit-wise operations …

Apr 26, 2012 · The Java jargon uses the expression method, not functions - in other contexts there is the distinction of function and procedure, dependent on the existence of a return type, …

Mar 7, 2010 · I was just reading this line: The first thing the format() method does is load a Velocity template from the classpath named output.vm Please explain what was meant by …