With javadoc, which of the following denotes a javadoc comment?
//#
/*
/**
//**
Correct Answer :
C. /**
Related Questions
Consider the following class definition.
Class Student extends String
{
}
What happens when we try to compile this class?
Will not compile because class body is not defined
Will not compile because class is not declared public
Will compile successfully.
Will not compile because String is abstract
Which of the following are keywords?
integer
default
Boolean
Object
What does the following line of code do?
TextField text=new TextField(10);
Creates text object that can hold 10 rows of text.
Creates text object that can hold 10 columns of text.
Creates the object text and initializes it with the value 10.
The code is illegal.
Which of the following statements are true?
UTF characters are all 24 bits.
Reader class has methods that can read integers and floats.
Unicode characters are all 16 bits.
all of the above
The break statement is required in the default case of a switch selection structure.
True
False
Which javadoc tag is used to denote a comment for methods parameters?
@method
@parameter
@argument
@param
Which of the following will produce a value of 22 if x=22.9:
Ceil(x)
Round(x)
Rint(x)
Abs(x)
A method declared as static can not access non-static class members.
True
False
A static class method can be invoked by simply using the name of the method alone.
True
False
Servlet has ___________
init method
doGet(------) method
All of the above methods.
The default case is always required in the switch selection structure.
True
False
A catch can have comma-separated multiple arguments.
True
False
The name of the RMI compiler is ___________
rmicom
rmic
jrmi
none of the above
Which of the following keywords are used to control access to a class member?
default
protected
interface
None of the above
It is an error if a class with one or more abstract methods is not explicitly declared abstract.
True
False
The import statement is always the first no comment statement in a Java program files.
True
False
Which key word can protect a class in package from accessibility by the classes outside the package?
private
protected
final
don't use any keyword at all(make it default)
We would like to make a member of a class visible in all subclasses regardless of what package they are in. Which one of the following keywords would achieve this?
private
protected
public
private protected
In a single Servlet class we can use____________
doGet(...) method only
doPost(...) method only
doGet(...) method and doPost(...) method both at a time.
Either 'a' or 'b'
The concept of multiple inheritance is implemented in Java by
extending two or more classes
extending one class and implementing one or more interfaces
all the above
When we implement the Runnable interface, we must define the method
start()
init()
runnable()
run()
Every method of a final in class is implicitly final.
True
False
executeUpdate(------------) returns ___________
Nothing
Returns a ResultSet object
Returns an integer value to show the no. of updated rows
None of the above.
When we implement an interface method, it should be declared as public.
True
False
Consider the following class definitions:
class maths {
student student1;
}
class student {
String name;
}
student student1;
}
class student {
String name;
}
This code represents:
an 'is a' relationship
a 'has a' relationship
both
neither
An individual array element that is passed to a method and modified in that method will contain the modified value when the called method completes execution.
True
False
An EJB is a server-side component that encapsulates the business logic of an application
True
False
All methods in an abstract class must be declared abstract.
True
False
In RMI before running the client program we must start RMI Registry.
True.
False.
The name of a Java program file must match the name of the class with the extension Java.
True
False