Which of the following command lines options generates documentation for all classes and methods?
-protected
-public
-private
-encoding
Correct Answer :
C. -private
Related Questions
When present, package must be the first no comment statement in the file.
True
False
The setBackground() method is part of the class
Applet
Component
Container
Object
The length of a string object 's1' can be obtained using the expression s1.length.
True
False
Java always provides a default constructor to a class.
True
False
Which exception is thrown by the read() method of InputStream class?
IOException
FileNotFoundException
ReadException
None of the above
putValue(...) method takes _____________________-
Two arguments of object type
First one is of a character type and second one is of an object type
First one is of an object type and second one is of a character type
None of the above.
forName() is a static factory method
True
False
A class may be both abstract and final.
True
False
A constructor must always invoke its supper class constructor in its first statement.
True
False
Which of the following are not keywords?
NULL
Implements
Protected
None of the above
Which of the following will produce a value of 22 if x=22.9:
Ceil(x)
Round(x)
Rint(x)
Abs(x)
What is java -g used for?
Using the jdb tool
Executing a class with optimization turned off
To provided information about deprecated methods
Non of the above
JSP files creates ________________
html files
html files and java files
java files and class files
None of the above.
Every call to wait has a corresponding call to notify that will eventually end the wafting.
True
False
Which javadoc tag is used to denote a comment for methods parameters?
@method
@parameter
@argument
@param
If a=10 and b= 15, then the statement x =(a>b)?a:b; assigns the value 15 to x.
True
False
Given the code
String s = new String("abc");
Which of the following calls are valid?
s.toUpperCase()
s.append("xyz")
s.setCharAt(1<'A')
all of the above
In RMI before running the client program we must start RMI Registry.
True.
False.
Which of the following represent legal flow control statements?
break();
continue(inner);
return;
exit();
The expression (x == y && a<b) is true If either x == y is true or a<b is true.
True
False
A Java monitor must either extend thread class or implement Runnable interface.
True
False
class.forName(...) creates an instance of java ODBC driver
True
False
It is an error to have a method with the same signature in both the super class and its subclass.
True
False
Message-Driven beans act as a listener for the Java Message Service API, processing messages synchronously
True
False
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'
In the code below, what data types the variable x can have?
byte b1 = 5;
byte b2 = 10;
x = b1 * b2;
int short
In RMI we invoke client method from remote server
True
False
It is perfectly legal to assign a subclass object to a supper class reference.
True
False
Submit button always fires doPost(...)
True
False
Declaring a method synchronized guarantees that the deadlock cannot occur.
True
False