One the features of is that an array can store many different types of values.
True
False
Correct Answer :
B. False
Related Questions
Every method of a final in class is implicitly final.
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.
Which of the following classes are available in the java.lang package?
Random
Stack
String Buffer
Vector
In evaluating a logical expression of type 'Boolean expression 1&& Boolean expression 2', both the Boolean expressions are not always evaluated.
True
False
All methods in an abstract class must be declared abstract.
True
False
JdbcOdbcDriver is an object of Object class
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
A variable declared inside the for loop control can not be referenced out side the loop.
True
False
Which of the following will produce a value of 10 if x = 9.7?
floor(x)
abs(x)
rint(x)
round(x)
With javadoc, which of the following denotes a javadoc comment?
//#
/*
/**
//**
In RMI we invoke client method from remote server
True
False
Members of a class specified as private are accessible only to the methods of the class.
True
False
The methods wait() and noify() are defined in
java.lang.Thread
java.lang.Runnable
java.lang.Object
java.lang.ThreadGroup
It is an error to have a method with the same signature in both the super class and its subclass.
True
False
Frames and applets cannot be used together in the same program.
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
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 keywords are used to control access to a class member?
default
protected
interface
None of the above
JSP files creates ________________
html files
html files and java files
java files and class files
None of the above.
Which are the valid ways to create DataInputStream streams?
new DataInputStream(new File("in.dat"));
new DataInputStream(new FileInputStream("in.dat"));
new DataInputStream("in.dat");
new DataInputStream("in.data","r");
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
Which javadoc tag is used to denote a comment for methods parameters?
@method
@parameter
@argument
@param
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
We can over load methods with differences only in their return type.
True
False
Every call to wait has a corresponding call to notify that will eventually end the wafting.
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.
Which of the following string can be used as mode string for creating a RandomAccessFile object?
"rw"
"wr"
"0"
'w''
If m and n are int type variables, what will be the result of the expression
'm % n' when m = -14 and n = -3?
4
2
-2
-4
In the code below, what data types the variable x can have?
byte b1 = 5;
byte b2 = 10;
x = b1 * b2;
int short