Throwing an exception always causes program termination.
True
False
Correct Answer :
B. False
Related Questions
Frames and applets cannot be used together in the same program.
True
False
It is an error to have a method with the same signature in both the super class and its subclass.
True
False
Every method of a final in class is implicitly final.
True
False
We can add more than one class(es) at the time of compilation Java Beans.
True.
False.
Which of the following methods belong to the String class?
length()
compareTo()
substring()
all of the them
Given the code
String s = new String("abc");
Which of the following calls are valid?
s.toUpperCase()
s.append("xyz")
s.setCharAt(1<'A')
all of the above
Objects are passed to a method by use of call-by-reference.
True
False
The use of protected keyword to a member in a class will restrict its visibility as follows:
Visibility only in the class and its subclasses in the same package.
Visibility only inside the same package.
Visibility in all classes in the same package and subclasses in other packages.
Visibility only in the class where it is declared.
It is perfectly legal to refer to any instance variable inside of a static method.
True
False
Consider the following class definition.
Class Student extends String
{
}
What happens when we try to compile this class?
Will not compile because class body is not defined
Will not compile because class is not declared public
Will compile successfully.
Will not compile because String is abstract
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
In order to connect to a database through java program we must create _______-
Connection, Statement, ResultSet
Connection, ResultSet
Statement< ResultSet
Connection, Statement
Which of the following are keywords?
integer
default
Boolean
Object
Which of the following methods can be used to change the size of a
size() *
resize()
component
dimension()
setSize()
size()
The methods wait() and noify() are defined in
java.lang.Thread
java.lang.Runnable
java.lang.Object
java.lang.ThreadGroup
DataInput is
An abstract class defined is java.io.
A class we can use to read primitive data types.
An interface that defines methods to open files.
An interface that defines methods to read primitive data types.
Declarations can appear anywhere in the body of a Java method.
True
False
The name of the RMI compiler is ___________
rmicom
rmic
jrmi
none of the above
Which of the following keywords are used to control access to a class member?
default
protected
interface
None of the above
Connection, Statement are interfaces and ResultSet is a class.
True.
False.
A thread can make second thread ineligible for execution by calling the suspend (-) method on second thread.
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
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.
When we implement an interface method, it should be declared as public.
True
False
The programmer must explicitly create the system .in and system .out objects.
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.
Every call to wait has a corresponding call to notify that will eventually end the wafting.
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)
Servlet has ___________
init method
doGet(------) method
All of the above methods.
Which of the following represent legal flow control statements?
break();
continue(inner);
return;
exit();