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)
Correct Answer :
D. don't use any keyword at all(make it default)
Related Questions
A method declared as static can not access non-static class members.
True
False
executeUpdate(------------) returns ___________
Nothing
Returns a ResultSet object
Returns an integer value to show the no. of updated rows
None of the above.
All the bitwise operators have the same level of precedence in Java.
True
False
Which of the following statements are valid array declarations?
int number();
float average[];
double[] marks;
counter int[];
All methods in an abstract class must be declared abstract.
True
False
Which of the following methods can be used to change the size of a
size() *
resize()
component
dimension()
setSize()
size()
Session bean
Represents a single client inside the application server
Can not be shared
Is not persistent
Satisfies all of the above conditions
In RMI before running the client program we must start RMI Registry.
True.
False.
A thread can make second thread ineligible for execution by calling the suspend (-) method on second thread.
True
False
The default case is always required in the switch selection structure.
True
False
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
Which exception is thrown by the read() method of InputStream class?
IOException
FileNotFoundException
ReadException
None of the above
JdbcOdbcDriver is an object of Object class
True
False
EJBs can be of the following type(s)
None of the above
Entity Bean
Session Bean
Message-driven bean
All of the above
The keywords reserved but not used in the initial version of Java re:
Synchronized
Boolean
union
goto
The name of a Java program file must match the name of the class with the extension Java.
True
False
Which of the following will produce a value of 10 if x = 9.7?
floor(x)
abs(x)
rint(x)
round(x)
Servlet can have ___________
get method and post method
get method or post method
Either of the above
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
It is an error to have a method with the same signature in both the super class and its subclass.
True
False
Which of the following are not keywords?
NULL
Implements
Protected
None of the above
Any class may be inherited by another class in the same package.
True
False
Which of the following represent legal flow control statements?
break;
break();
continue(inner);
all of the above
Frames and applets cannot be used together in the same program.
True
False
Which of the following command lines options generates documentation for all classes and methods?
-protected
-public
-private
-encoding
In RMI we invoke client method from remote server
True
False
We can add more than one class(es) at the time of compilation Java Beans.
True.
False.
Consider the following code snippet:
try
{
int x=0; int y=50/x;
System.out.println("Division by zero");
}
catch(ArithmeticException e)
{
System.out.println("catch block");
}
What will be the output?
{
int x=0; int y=50/x;
System.out.println("Division by zero");
}
catch(ArithmeticException e)
{
System.out.println("catch block");
}
Error. Won't compile
Division by zero
Catch block
Division by zero catch block
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
The expression (x == y && a<b) is true If either x == y is true or a<b is true.
True
False