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  • 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
  • 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
  • java - How to configure port for a Spring Boot application - Stack Overflow
    How do I configure the TCP IP port listened on by a Spring Boot application, so it does not use the default port of 8080
  • 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 is the difference between == and equals () in Java?
    0 In Java, == and the equals method are used for different purposes when comparing objects Here's a brief explanation of the difference between them along with examples: == Operator: The == operator is used for reference comparison It checks whether two references point to the exact same object in memory Example: String str1 = new String
  • 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
  • java - Extracting . jar file with command line - Stack Overflow
    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 command from the console, using a scanner set to system in Scanner console = new Scanner(System in); String input = console nextLine(); then get all the components and write them as a file JarEntry JE = null; while((JE




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