The check box group class is a subclass of the component class.
True
False
Correct Answer :
B. False
Related Questions
Any class may be inherited by another class in the same package.
True
False
executeUpdate automatically updates data because___________
auto commit is on, by default
It performs a hidden commit statement as well
Does not commit
None of the above.
Any method in a supper class can be over ridden in its subclass.
True
False
A panel can not be added to another panel.
True
False
With javadoc, which of the following denotes a javadoc comment?
//#
/*
/**
//**
It is perfectly legal to refer to any instance variable inside of a static method.
True
False
We can add more than one class(es) at the time of compilation Java Beans.
True.
False.
An EJB is a server-side component that encapsulates the business logic of an application
True
False
Declarations can appear anywhere in the body of a Java method.
True
False
Which of the following will produce a value of 22 if x=22.9:
Ceil(x)
Round(x)
Rint(x)
Abs(x)
All the bitwise operators have the same level of precedence in Java.
True
False
Objects are passed to a method by use of call-by-reference.
True
False
What is wrong in the following class definitions?
abstract class print {
abstract show();
}
class Display extends print {
}
abstract show();
}
class Display extends print {
}
Nothing is wrong
Wrong Method show() should have a return type
Wrong Methods show() is not implemented in Display
Wrong Display does not contain any members.
DriverManager.getConnection("jdbc:odbc:dsn_name") method does not depend on the class.forName(...) method.
True.
False.
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
Throwing an exception always causes program termination.
True
False
The import statement is always the first no comment statement in a Java program files.
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.
One the features of is that an array can store many different types of values.
True
False
Frames and applets cannot be used together in the same program.
True
False
A variable declared inside the for loop control can not be referenced out side the loop.
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'
A method declared as static can not access non-static class members.
True
False
JSP files creates ________________
html files
html files and java files
java files and class files
None of the above.
A string object can not be modified after it is created.
True
False
JdbcOdbcDriver is an object of Object class
True
False
When X is a positive number the operations x>> 2 and x>>>2 both produce the same result.
True
False
When present, package must be the first no comment statement in the file.
True
False
Consider the following class definitions:
class maths {
student student1;
}
class student {
String name;
}
student student1;
}
class student {
String name;
}
This code represents:
an 'is a' relationship
a 'has a' relationship
both
neither
Which of the following methods can be used to change the size of a
size() *
resize()
component
dimension()
setSize()
size()