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  1. 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 …

  2. What is the difference between == and equals () in Java?

    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:

  3. What does the ^ operator do in Java? - Stack Overflow

    Jan 2, 2010 · 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 :- …

  4. What does the arrow operator, '->', 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<Car>) …

  5. Setting JAVA_HOME environment variable in MS Windows

    JAVA_HOME and PATH are different, I didn't say point JAVA_HOME to the jre/bin directory. Try making sure that the PATH environment variable includes the jre/bin directory. For example, …

  6. Is there a difference between x++ and ++x in java?

    Jul 7, 2009 · 12 In Java there is a difference between x++ and ++x ++x is a prefix form: It increments the variables expression then uses the new value in the expression. For example if …

  7. java - How to configure port for a Spring Boot application - Stack …

    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.

  8. Java Versions and Compatibility - Stack Overflow

    Apr 10, 2023 · A Java Runtime Environment (JRE) is an implementation of the Java SE specifications, a complete Java platform, with all the software you need to execute an app …

  9. 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 …

  10. java - javac is not recognized as an internal or external command ...

    Oct 10, 2011 · If java command is working and getting problem with javac. then first check in jdk's bin directory javac.exe file is there or not. If javac.exe file is exist then set JAVA_HOME as …