Online Access Free 1Z1-804 Practice Test

When using the default file system provider with a JVM running on a DOS-based file system, which statement is true?

• A.DOS file attributes can be changed as a set in a single method call.
• B.DOS file attributes can be read as a set in a single method call.
• C.DOS file attributes can be modified for symbolic links and regular files.
• D.DOS file attributes can be modified in the same method that creates the file.

Which two forms of abstraction can a programmer use in Java?

• A.interfaces
• B.enums
• C.primitives
• D.primitive wrappers
• E.abstract classes
• F.concrete classes

Given:

What is the result?

• A.One
• B.Three
• C.Compilation fails.
• D.The program runs, but prints no output.

Given:

What is the result?

• A.Both const and inner will be in the output.
• B.Compilation fails due to an error on line B.
• C.Compilation fails due to an error on line A.
• D.An Exception is thrown at runtime.
• E.Only const will be in the output.

Which four are true about enums?

• A.An enum can implement an interface.
• B.An enum can declare a private constructor.
• C.An enum is typesafe.
• D.An enum can subclass another enum.
• E.An enum cannot have public methods or fields.
• F.All enums implicitly implement Comparable.