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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
  • 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 - (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 values, before checking the values of the parameters The double ones will first check the left parameter and its value and if true (||) or false ( ) leave the second one untouched Sound compilcated? An
  • What is the percent % operator in java? - Stack Overflow
    What is the percent % operator in java? Asked 8 years, 2 months ago Modified 4 years ago Viewed 63k times
  • in java what does the @ symbol mean? - Stack Overflow
    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 Represents that the class is an entity class Similarly you can use many annotations to map individual columns, generate ids, generate version, relationships etc
  • What is the difference between and in Java? - Stack Overflow
    I always thought that amp; amp; operator in Java is used for verifying whether both its boolean operands are true, and the amp; operator is used to do Bit-wise operations on two integer types
  • What does the arrow operator, - gt;, do in Java? - Stack Overflow
    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 lt;Car gt;) CollectionUtils select(list




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