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 …
What does the ^ operator do in Java? - Stack Overflow
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.
java - What is a classpath and how do I set it? - Stack Overflow
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 …
java - Extracting .jar file with command line - Stack Overflow
Dec 10, 2011 · Java has a class specifically for zip files and one even more specifically for Jar Files. java.util.jar.JarOutputStream java.util.jar.JarInputStream using those you could, on a …
java - && (AND) and || (OR) in IF statements - Stack Overflow
Java has 5 different boolean compare operators: &, &&, |, ||, ^ & and && are "and" operators, | and || "or" operators, ^ is "xor" The single ones will check every parameter, regardless of the …
java - SSL and cert keystore - Stack Overflow
Aug 16, 2021 · 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 …
What are the -Xms and -Xmx parameters when starting JVM?
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 …
debugging - What are Java command line options to set to allow …
Sep 26, 2008 · I know there's some JAVA_OPTS to set to remotely debug a Java program. What are they and what do they mean ?
in java what does the @ symbol mean? - Stack Overflow
Aug 5, 2015 · In Java Persistence API you use them to map a Java class with database tables. For example @Table () Used to map the particular Java class to the date base table. @Entity …
Setting JAVA_HOME - Stack Overflow
JAVA_HOME if you installed the JDK (Java Development Kit) or JRE_HOME if you installed the JRE (Java Runtime Environment). In the Variable Value field, enter your JDK or JRE …