TheServerSide: Free Book: Servlets and JavaServer Pages: The J2EE Technology Web Tier
Even as a mid-level API ensconced in modern UI component-based Web frameworks and Web services technologies, the incoming Servlet 3.0 specification (JSR 315) will have groundbreaking impact on Java ...
If you're seeking a DevOps or developer position, where you will handle the runtime management of Java applications, you'll need to answer important Java garbage collection interview questions to land ...
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 an example of comparing two Strings in Java for equality using == and equals() method which will clear some doubts:
In particular, if Java ever gets another ternary operator, people who use the term "conditional operator" will still be correct and unambiguous - unlike those who just say "ternary operator".
What is the Java ?: operator called and what does it do?
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.
The parenteses I used above are implicitly used by Java. If you look at the terms this way you can easily see, that they are both the same as they are commutative.
Details: Java 6, Apache Commons Collection, IntelliJ 12 Update/Answer: It turns out that IntelliJ 12 supports Java 8, which supports lambdas, and is "folding" Predicates and displaying them as lambdas. Below is the "un-folded" code.