When present, package must be the first no comment statement in the file.
True
False
Correct Answer :
A. True
Related Questions
The setBackground() method is part of the class
Applet
Component
Container
Object
Frames and applets cannot be used together in the same program.
True
False
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
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
In RMI we invoke client method from remote server
True
False
All methods in an abstract class must be declared abstract.
True
False
It is perfectly legal to assign a subclass object to a supper class reference.
True
False
Which of the following are not keywords?
NULL
Implements
Protected
None of the above
In RMI before running the client program we must start RMI Registry.
True.
False.
Java always provides a default constructor to a class.
True
False
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
Which of the following statements are true?
An abstract class may not have any final methods?
A final class may not have any abstracts methods.
Transient variables must be static.
all 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
Which of the following are keywords?
integer
default
Boolean
Object
A variable declared inside the for loop control can not be referenced out side the loop.
True
False
JdbcOdbcDriver is an object of Object class
True
False
It is an error if a class with one or more abstract methods is not explicitly declared abstract.
True
False
All the bitwise operators have the same level of precedence in Java.
True
False
The break statement is required in the default case of a switch selection structure.
True
False
A catch can have comma-separated multiple arguments.
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
To delete a file, we can use an instance of class file.
True
False
One the features of is that an array can store many different types of values.
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
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
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 represent legal flow control statements?
break;
break();
continue(inner);
all of the above
DriverManager.getConnection("jdbc:odbc:dsn_name") method does not depend on the class.forName(...) method.
True.
False.
Java is fully object oriented programme.
true
false
Servlet has ___________
init method
doGet(------) method
All of the above methods.