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4

Which key word can protect a class in package from accessibility by the classes outside the package?

A. private

B. protected

C. final

D. don't use any keyword at all(make it default)

Correct Answer :

D. don't use any keyword at all(make it default)


Related Questions

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4

A variable declared inside the for loop control can not be referenced out side the loop.

A. True

B. False

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4

It is an error to catch the same type of exception in two different catch blocks associated with a particular try block.

A. True

B. False

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4

If a=10 and b= 15, then the statement x =(a>b)?a:b; assigns the value 15 to x.

A. True

B. False

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4

What is wrong in the following class definitions? 
abstract class print { 
abstract show();
}
class Display extends print {
}

A. Nothing is wrong

B. Wrong Method show() should have a return type

C. Wrong Methods show() is not implemented in Display

D. Wrong Display does not contain any members.

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4

When we invoke repaint () for a Component, the AWT invokes the method:

A. draw()

B. update()

C. show()

D. paint()

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4

Java is fully object oriented programme.

A. true

B. false

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4

The name of the RMI compiler is ___________

A. rmicom

B. rmic

C. jrmi

D. none of the above

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4

Which of the following represent legal flow control statements?

A. break();

B. continue(inner);

C. return;

D. exit();

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4

A string object can not be modified after it is created.

A. True

B. False

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4

Which of the following will produce a value of 10 if x = 9.7?

A. floor(x)

B. abs(x)

C. rint(x)

D. round(x)

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4

When we implement the Runnable interface, we must define the method

A. start()

B. init()

C. runnable()

D. run()

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4

class.forName(...) creates an instance of java ODBC driver

A. True

B. False

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4

The expression (x == y && a<b) is true If either x == y is true or a<b is true.

A. True

B. False

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4

putValue(...) method takes _____________________-

A. Two arguments of object type

B. First one is of a character type and second one is of an object type

C. First one is of an object type and second one is of a character type

D. None of the above.

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4

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?

A. 25

B. 15

C. 5

D. Error can't be executed.

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4

Which of the following control expressions are valid for an if statement?

A. an integer expression

B. a Boolean expression

C. either A or B

D. Neither A or B

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4

Every method of a final in class is implicitly final.

A. True

B. False

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4

The name of a Java program file must match the name of the class with the extension Java.

A. True

B. False

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4

It is an error to have a method with the same signature in both the super class and its subclass.

A. True

B. False

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4

Servlet can have ___________

A. get method and post method

B. get method or post method

C. Either of the above

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4

Frames and applets cannot be used together in the same program.

A. True

B. False

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4

The break statement is required in the default case of a switch selection structure.

A. True

B. False

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4

EJBs can be of the following type(s)
None of the above

A. Entity Bean

B. Session Bean

C. Message-driven bean

D. All of the above

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4

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?

A. number=getParameter(99)

B. <number==99>

C.

D. <param = radius value ==99>

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4

For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.

A. True.

B. False.

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4

Throwing an exception always causes program termination.

A. True

B. False

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4

The default case is always required in the switch selection structure.

A. True

B. False

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4

All the bitwise operators have the same level of precedence in Java.

A. True

B. False

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4

Connection, Statement are interfaces and ResultSet is a class.

A. True.

B. False.

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4

Given the code
String s = new String("abc");
Which of the following calls are valid?

A. s.toUpperCase()

B. s.append("xyz")

C. s.setCharAt(1<'A')

D. all of the above