What makes Java dynamic?

• A.The Java compiler uses reflection to test if class methods are supported by resources of a target platform.
• B.The Java compiler preprocesses classes to run on specific target platforms.
• C.At runtime, classes are loaded as needed, and new code modules can be loaded on demand.
• D.The runtime can process machine language sources as well as executables from different language compilers.

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Given:

Which three classes successfully override showFirst ()?

• A.
• B.
• C.
• D.
• E.
• F.

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Given:

What is the result?

• A.1.99,2.99,0.0
• B.The compilation fails.
• C.1.99,2.99,0
• D.1.99,2.99

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Given:

You want to implement the java. Io, serializable interface to the MypersisteneData class.
Which method should be overriden?

• A.The writeExternal method
• B.The readExternal and writeExternal method
• C.The readExternal method
• D.nothing

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Given:

Which two independent changes will make the Main class compile? (Choose two.)

• A.Move the entire Student class declaration to a separate Java file, Student.java.
• B.Change line 2 to public Student(String classname).
• C.Change line 1 to public class Student {.
• D.Change line 3 to Student student = new Student("Biology");.
• E.Change line 1 to static class Student {.

Correct Answer: B,D

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