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>) …
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 …
What is the difference between & and && in Java? - Stack Overflow
Apr 9, 2011 · I always thought that && operator in Java is used for verifying whether both its boolean operands are true, and the & operator is used to do Bit-wise operations …
What are the -Xms and -Xmx parameters when starting JVM?
Feb 7, 2013 · 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 …
java - How do I find where JDK is installed on my windows …
Jan 13, 2011 · I need to know where JDK is located on my machine. On running Java -version in cmd, it shows the version as '1.6.xx'. To find the location of this SDK on my machine I tried …
in java what does the @ symbol mean? - Stack Overflow
Aug 5, 2015 · 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 …
What is the difference between == and equals () in Java?
Since java.lang.String class override equals method, It return true if two String object contains same content but == will only return true if two references are pointing to same object. Here is …
java - How do I resolve ClassNotFoundException? - Stack Overflow
Sep 9, 2016 · I am trying to run a Java application, but getting this error: java.lang.ClassNotFoundException: After the colon comes the location of the class that is …
java - How to run a JAR file - Stack Overflow
Dec 4, 2016 · java -jar Predit.jar It raised "Failed to load main class" exceptions. So I extracted this JAR file:
What is the percent % operator in java? - Stack Overflow
May 15, 2017 · What is the percent % operator in java? Asked 8 years, 7 months ago Modified 4 years, 5 months ago Viewed 64k times