Which javadoc tag is used to denote a comment for methods parameters?
@method
@parameter
@argument
@param
Correct Answer :
D. @param
Related Questions
Java always provides a default constructor to a class.
True
False
Objects are passed to a method by use of call-by-reference.
True
False
Which are the valid ways to create DataInputStream streams?
new DataInputStream(new File("in.dat"));
new DataInputStream(new FileInputStream("in.dat"));
new DataInputStream("in.dat");
new DataInputStream("in.data","r");
Which of the following are the wrapper classes?
Random
Vector
Byte
all of the above
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auto commit is on, by default
It performs a hidden commit statement as well
Does not commit
None of the above.
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
What is error in the following class definitions?
abstract class xy {
abstract sum(int x, int y) {
}
}
abstract sum(int x, int y) {
}
}
class header is not define properly
constructor is no defined
method is not defined properly
no error
To delete a file, we can use an instance of class file.
True
False
When we implement the Runnable interface, we must define the method
start()
init()
runnable()
run()
The check box group class is a subclass of the component class.
True
False
A constructor must always invoke its supper class constructor in its first statement.
True
False
It is an error to catch the same type of exception in two different catch blocks associated with a particular try block.
True
False
Frames and applets cannot be used together in the same program.
True
False
Every call to wait has a corresponding call to notify that will eventually end the wafting.
True
False
JdbcOdbcDriver is an object of Object class
True
False
The modulus operator (%) can be used only with Integer operands.
True
False
Which of the following represent legal flow control statements?
break;
break();
continue(inner);
all of the above
A JSP file can be stored_________________
With the extension .jsp in servlets folder of the jws
With the extension .html in public_html folder of the jws
With the extension .jsp in public_html folder of the jws
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In RMI before running the client program we must start RMI Registry.
True.
False.
Which of the following are not keywords?
NULL
Implements
Protected
None of the above
Which of the following statements are valid array declarations?
int number();
float average[];
double[] marks;
counter int[];
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Connection, Statement, ResultSet
Connection, ResultSet
Statement< ResultSet
Connection, Statement
The use of protected keyword to a member in a class will restrict its visibility as follows:
Visibility only in the class and its subclasses in the same package.
Visibility only inside the same package.
Visibility in all classes in the same package and subclasses in other packages.
Visibility only in the class where it is declared.
The programmer must explicitly create the system .in and system .out objects.
True
False
Which of the following methods can be used to draw the outline of a square?
fillRect()
drawLine()
drawString()
all of the above
We can over load methods with differences only in their return type.
True
False
The name of a Java program file must match the name of the class with the extension Java.
True
False
Which of the following are keywords?
integer
default
Boolean
Object
The length of a string object 's1' can be obtained using the expression s1.length.
True
False
Session bean
Represents a single client inside the application server
Can not be shared
Is not persistent
Satisfies all of the above conditions