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What is the Java ?: operator called and what does it do? Not only in Java, this syntax is available within PHP, Objective-C too In the following link it gives the following explanation, which is quiet good to understand it: A ternary operator is some operation operating on 3 inputs It's a shortcut for an if-else statement, and is also known as a conditional operator In Perl PHP it works as:
What does the ^ operator do in Java? - Stack Overflow 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
Is there a difference between x++ and ++x in java? 12 In Java there is a difference between x++ and ++x ++x is a prefix form: It increments the variables expression then uses the new value in the expression For example if used in code: int x = 3; int y = ++x; Using ++x in the above is a two step operation The first operation is to increment x, so x = 1 + 3 = 4 The second operation is y
java - SSL and cert keystore - Stack Overflow SSL properties are set at the JVM level via system properties Meaning you can either set them when you run the program (java -D ) Or you can set them in code by doing System setProperty The specific keys you have to set are below: javax net ssl keyStore - Location of the Java keystore file containing an application process's own certificate and private key On Windows, the specified
What are the -Xms and -Xmx parameters when starting JVM? 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 JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory For example, starting a JVM like below will start it with 256 MB of memory and will allow the process to use up to 2048 MB
Proper usage of Java -D command-line parameters 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
What does the arrow operator, - gt;, do in Java? - Stack Overflow That's part of the syntax of the new lambda expressions, to be introduced in Java 8 There are a couple of online tutorials to get the hang of it, here's a link to one Basically, the -> separates the parameters (left-side) from the implementation (right side) The general syntax for using lambda expressions is (Parameters) -> { Body } where the -> separates parameters and lambda expression