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Differences in boolean operators: & vs && and | vs ||
...); // 6
Thanks to Carlos for pointing out the appropriate section in the Java Language Spec (15.22.1, 15.22.2) regarding the different behaviors of the operator based on its inputs.
Indeed when both inputs are boolean, the operators are considered the Boolean Logical Operators and behave similar...
Why do we need break after case statements?
...
Java comes from C and that is the syntax from C.
There are times where you want multiple case statements to just have one execution path.
Below is a sample that will tell you how many days in a month.
class SwitchDemo2 {
...
Does Java support default parameter values?
I came across some Java code that had the following structure:
24 Answers
24
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How to create a temporary directory/folder in Java?
...ere a standard and reliable way of creating a temporary directory inside a Java application? There's an entry in Java's issue database , which has a bit of code in the comments, but I wonder if there is a standard solution to be found in one of the usual libraries (Apache Commons etc.) ?
...
Java Name Hiding: The Hard Way
...ble with same name. For more such interesting cases, I would recommend 2 "Java Pitfalls" books: books.google.co.in/books/about/… books.google.co.in/books/about/…
– RRM
Jul 28 '14 at 8:06
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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...默认没有安装Squid
服务，读者可以使用下面的命令检查系统是否已经安装了
Squid服务或查看已经安装了何种版本。
rpm -q squid
2.Squid代理服务的基本配置
2.1 Squid主配置文件是/etc/squid/squid.conf ，最基本的设置如下。
http_port...
JMS and AMQP - RabbitMQ
...e not a teacher :) ) Let's see all of these one by one.
As you know:
The Java Message Service (JMS) API is a Java Message Oriented Middleware (MOM) API for sending messages between two or more clients. JMS is a part of the Java Platform, Enterprise Edition, and is defined by a specification develo...
Any reason to prefer getClass() over instanceof when generating .equals()?
...iskov substitution principle, and can lead to very surprising behavior. In Java, it's particularly important because most of the collections (HashTable, etc.) are based on the equals method. If you put a member of the super class in a hash table as the key and then look it up using a subclass instan...
How to convert a LocalDate to an Instant?
I work with the new DateTime API of Java 8.
2 Answers
2
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How find all unused classes in Intellij Idea?
...ar"
Double-click on "Unused declaration"
Settings will pop up
Click on Java/Declaration redundancy/Unused declaration
on the right bottom select "On the fly editor settings"
untick check fields, ..., check parameters. Only Check Classes should be ticked.
Press OK
Settings closes
On the menu ...