Session bean
Represents a single client inside the application server
Can not be shared
Is not persistent
Satisfies all of the above conditions
Correct Answer :
D. Satisfies all of the above conditions
Related Questions
JSP files creates ________________
html files
html files and java files
java files and class files
None of the above.
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 break statement is required in the default case of a switch selection structure.
True
False
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
Which of the following represent legal flow control statements?
break;
break();
continue(inner);
all of the above
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
Which of the following control expressions are valid for an if statement?
an integer expression
a Boolean expression
either A or B
Neither A or B
Give file is a file object, which of the following are legal statements to create a new file.
file.create();
FileOutputStream fos=new FileOutputStream(file);
FileInputStream fis=new FileInputStream(file);
all 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
A string object can not be modified after it is created.
True
False
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
Which of the following represent legal flow control statements?
break();
continue(inner);
return;
exit();
Which of the following are the wrapper classes?
Random
Vector
Byte
all of the above
Which of the following are keywords?
integer
default
Boolean
Object
The methods wait() and noify() are defined in
java.lang.Thread
java.lang.Runnable
java.lang.Object
java.lang.ThreadGroup
Which of the following methods can be used to remove a component from the display?
remove()
desappear()
hide()
move()
We can over load methods with differences only in their return type.
True
False
A catch can have comma-separated multiple arguments.
True
False
The setBackground() method is part of the class
Applet
Component
Container
Object
When present, package must be the first no comment statement in the file.
True
False
Which of the following string can be used as mode string for creating a RandomAccessFile object?
"rw"
"wr"
"0"
'w''
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)
Which javadoc tag is used to denote a comment for methods parameters?
@method
@parameter
@argument
@param
If you want to assign a value of 99 to the variable year, then which of the following lines can be used within an <applet> tags?
number=getParameter(99)
<number==99>
<param = radius value ==99>
In RMI we invoke client method from remote server
True
False
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
None of the above.
forName() is a static factory method
True
False
The keywords reserved but not used in the initial version of Java re:
Synchronized
Boolean
union
goto
executeUpdate(------------) returns ___________
Nothing
Returns a ResultSet object
Returns an integer value to show the no. of updated rows
None of the above.
The name of a Java program file must match the name of the class with the extension Java.
True
False