Declarations can appear anywhere in the body of a Java method.
True
False
Correct Answer :
A. True
Related Questions
It is an error to catch the same type of exception in two different catch blocks associated with a particular try block.
True
False
Declarations can appear anywhere in the body of a Java method.
True
False
DriverManager.getConnection("jdbc:odbc:dsn_name") method does not depend on the class.forName(...) method.
True.
False.
The methods wait() and noify() are defined in
java.lang.Thread
java.lang.Runnable
java.lang.Object
java.lang.ThreadGroup
A constructor must always invoke its supper class constructor in its first statement.
True
False
Servlet has ___________
init method
doGet(------) method
All of the above methods.
For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.
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 are the wrapper classes?
Random
Vector
Byte
all of the above
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
In the code below, what data types the variable x can have?
byte b1 = 5;
byte b2 = 10;
x = b1 * b2;
int short
All the bitwise operators have the same level of precedence in Java.
True
False
A variable declared inside the for loop control can not be referenced out side the loop.
True
False
The check box group class is a subclass of the component class.
True
False
A catch can have comma-separated multiple arguments.
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.
The name of a Java program file must match the name of the class with the extension Java.
True
False
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
Which of the following are keywords?
integer
default
Boolean
Object
When we invoke repaint () for a Component, the AWT invokes the method:
draw()
update()
show()
paint()
With javadoc, which of the following denotes a javadoc comment?
//#
/*
/**
//**
In order to connect to a database through java program we must create _______-
Connection, Statement, ResultSet
Connection, ResultSet
Statement< ResultSet
Connection, Statement
Java is fully object oriented programme.
true
false
It is an error if a class with one or more abstract methods is not explicitly declared abstract.
True
False
Which of the following classes are available in the java.lang package?
Random
Stack
String Buffer
Vector
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)
putValue(...) method takes _____________________-
Two arguments of object type
First one is of a character type and second one is of an object type
First one is of an object type and second one is of a character type
None of the above.
executeUpdate(------------) returns ___________
Nothing
Returns a ResultSet object
Returns an integer value to show the no. of updated rows
None of the above.
The keywords reserved but not used in the initial version of Java re:
Synchronized
Boolean
union
goto
A panel can not be added to another panel.
True
False