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 7 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 ex :- To use your example: The binary representation of 5 is 0101 The binary representation of 4 is 0100
boolean operations - How to use or in Java? - Stack Overflow The || operator can only be used, in Java, where a boolean (true or false) expression is expected, such as in an if statement like the above So pretty much in an if or a conditional operator (that ? : thing, sometimes called the ternary operator)
Proper usage of Java -D command-line parameters 184 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 Java option -Xmx stand for? - Stack Overflow java -Xmx1024m filename what does -Xmx mean?see here: Java Tool Doc, it says, -Xmxn Specify the maximum size, in bytes, of the memory allocation pool This value must a multiple of 1024 greater than 2MB Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes The default value is 64MB The upper limit for this value will be approximately 4000m on Solaris 7 and Solaris
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
java - SSL and cert keystore - Stack Overflow How does my Java program know where my keystore containing the certificate is? Or alternatively: How do I tell my Java program where to look for the keystore? After specifying the keystore in some
java - What does the colon (:) operator do? - Stack Overflow Since most for loops are very similar, Java provides a shortcut to reduce the amount of code required to write the loop called the for each loop Here is an example of the concise for each loop: