In RMI we invoke client method from remote server
True
False
Correct Answer :
B. False
Related Questions
Which of the following represent legal flow control statements?
break();
continue(inner);
return;
exit();
executeUpdate(------------) returns ___________
Nothing
Returns a ResultSet object
Returns an integer value to show the no. of updated rows
None of the above.
Which of the following classes are available in the java.lang package?
Random
Stack
String Buffer
Vector
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>
A panel can not be added to another panel.
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.
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 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
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
Which of the following methods can be used to draw the outline of a square?
fillRect()
drawLine()
drawString()
all of the above
Members of a class specified as private are accessible only to the methods of the class.
True
False
If a=10 and b= 15, then the statement x =(a>b)?a:b; assigns the value 15 to x.
True
False
A variable declared inside the for loop control can not be referenced out side the loop.
True
False
One the features of is that an array can store many different types of values.
True
False
A constructor must always invoke its supper class constructor in its first statement.
True
False
A thread can make second thread ineligible for execution by calling the suspend (-) method on second thread.
True
False
For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.
True.
False.
When the string objects are compared with ==, the result is true If the strings contain the same values.
True
False
The name of a Java program file must match the name of the class with the extension Java.
True
False
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
Every call to wait has a corresponding call to notify that will eventually end the wafting.
True
False
Message-Driven beans act as a listener for the Java Message Service API, processing messages synchronously
True
False
Every method of a final in class is implicitly final.
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.
Consider the following statements:
int x = 10, y = 15;
x = ((x < y) ? (y + x) : (y - x);
What will be the value of x after executing these statements?
x = ((x < y) ? (y + x) : (y - x);
25
15
5
Error can't be executed.
A package is a collection of
classes
interface
editing tools
classes and interfaces
A Java monitor must either extend thread class or implement Runnable interface.
True
False
The name of the RMI compiler is ___________
rmicom
rmic
jrmi
none of the above
Any method in a supper class can be over ridden in its subclass.
True
False
Which of the following statements are valid array declarations?
int number();
float average[];
double[] marks;
counter int[];