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
How can I use pointers in Java? - Stack Overflow I know Java doesn't have pointers, but I heard that Java programs can be created with pointers and that this can be done by the few who are experts in Java Is it true?
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
java - How to run a JAR file - Stack Overflow 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 -classpath your package name Test This sets the which main-class to run in the jar file
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 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
logging - How to use log levels in java - Stack Overflow The java util logging Level documentation does a good job of defining when to use a log level and the target audience of that log level Most of the confusion with java util logging is in the tracing methods