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.
Correct Answer :
B. Creates text object that can hold 10 columns of text.
Related Questions
Which of the following command lines options generates documentation for all classes and methods?
-protected
-public
-private
-encoding
Which of the following represent legal flow control statements?
break();
continue(inner);
return;
exit();
Which of the following are not keywords?
NULL
Implements
Protected
None of the above
When we implement the Runnable interface, we must define the method
start()
init()
runnable()
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Session bean
Represents a single client inside the application server
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Servlet can have ___________
get method and post method
get method or post method
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java.lang.Runnable
java.lang.Object
java.lang.ThreadGroup
When we implement an interface method, it should be declared as public.
True
False
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init method
doGet(------) method
All of the above methods.
In the code below, what data types the variable x can have?
byte b1 = 5;
byte b2 = 10;
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int short
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
Which of the following are the wrapper classes?
Random
Vector
Byte
all of the above
The programmer must explicitly create the system .in and system .out objects.
True
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Consider the following code snippet:
try
{
int x=0; int y=50/x;
System.out.println("Division by zero");
}
catch(ArithmeticException e)
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System.out.println("catch block");
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{
int x=0; int y=50/x;
System.out.println("Division by zero");
}
catch(ArithmeticException e)
{
System.out.println("catch block");
}
Error. Won't compile
Division by zero
Catch block
Division by zero catch block
We can add more than one class(es) at the time of compilation Java Beans.
True.
False.
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.
The setBackground() method is part of the class
Applet
Component
Container
Object
A catch can have comma-separated multiple arguments.
True
False
Any method in a supper class can be over ridden in its subclass.
True
False
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
DriverManager.getConnection("jdbc:odbc:dsn_name") method does not depend on the class.forName(...) method.
True.
False.
Java is fully object oriented programme.
true
false
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None of the above
Entity Bean
Session Bean
Message-driven bean
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A final class may not have any abstracts methods.
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all of the above
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True
False
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It performs a hidden commit statement as well
Does not commit
None of the above.
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move()
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True
False