It is an error to catch the same type of exception in two different catch blocks associated with a particular try block.
True
False
Correct Answer :
A. True
Related Questions
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
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
The programmer must explicitly create the system .in and system .out objects.
True
False
When we invoke repaint () for a Component, the AWT invokes the method:
draw()
update()
show()
paint()
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 methods can be used to remove a component from the display?
remove()
desappear()
hide()
move()
In the code below, what data types the variable x can have?
byte b1 = 5;
byte b2 = 10;
x = b1 * b2;
int short
Frames and applets cannot be used together in the same program.
True
False
Servlet can have ___________
get method and post method
get method or post method
Either of the above
Which of the following will produce a value of 22 if x=22.9:
Ceil(x)
Round(x)
Rint(x)
Abs(x)
For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.
True.
False.
When we implement an interface method, it should be declared as public.
True
False
Any method in a supper class can be over ridden in its subclass.
True
False
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)
The import statement is always the first no comment statement in a Java program files.
True
False
DriverManager.getConnection("jdbc:odbc:dsn_name") method does not depend on the class.forName(...) method.
True.
False.
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 will produce a value of 10 if x = 9.7?
floor(x)
abs(x)
rint(x)
round(x)
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.
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.
One the features of is that an array can store many different types of values.
True
False
Which of the following are keywords?
integer
default
Boolean
Object
class.forName(...) creates an instance of java ODBC driver
True
False
Declarations can appear anywhere in the body of a Java method.
True
False
The length of a string object 's1' can be obtained using the expression s1.length.
True
False
A package is a collection of
classes
interface
editing tools
classes and interfaces
Which of the following string can be used as mode string for creating a RandomAccessFile object?
"rw"
"wr"
"0"
'w''
A catch can have comma-separated multiple arguments.
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 string object can not be modified after it is created.
True
False