Some information about java

1 What was the original name of Java?

• Oak

2 What is the name of the Java mascot?

• Duke

3 What is not true about JavaBeans?

• They're fully compiled to native code.

4 Which is not an official edition?

• BE

5 Which is never true for all possible values of x?

• (x===x)

6 JavaFX is:

• A language for building browser-based content

7 OpenJDK is not:

• An open source tool for running Java in your browser or through Web Start

8 What does the letter "E" do when you create an interface with a generic specification like this:        public void interface List(){ }

• "E" is a placeholder for the type.

10 Swing is to AWT as:

• nio is to io

11 Which is not part of the Java EE 6 platform?

• JavaFX

12 The Serialization API was created as:

• A technique for converting objects to a well-defined sequence of bytes

13 Java Web Start is:

• A set of tools for starting up JAR files directly from Web pages

14 Java Hot Spot is:

• A just-in-time compiler that lets the JVM optimize byte code

15 Which platform doesn't run Java out of the box?

• PC

16 What is the difference between an int and an Integer?

• One is a primitive represented with four bytes, and the other is an object.

17 The Collection interface is used:

• To have a standard interface for different ways to store collections of objects

18 Which is not true of a Java exception?

• Exceptions can only jump over three blocks in order to make code easier to debug.

19 The Java sandbox:

• Controls which classes run with the ClassLoader object