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4

Declarations can appear anywhere in the body of a Java method.

A. True

B. False

Correct Answer :

A. True


Related Questions

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4

Which of the following methods can be used to change the size of a
size() *
resize()

A. component

B. dimension()

C. setSize()

D. size()

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4

When present, package must be the first no comment statement in the file.

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

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

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4

What does the following line of code do?
TextField text=new TextField(10);

A. Creates text object that can hold 10 rows of text.

B. Creates text object that can hold 10 columns of text.

C. Creates the object text and initializes it with the value 10.

D. The code is illegal.

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4

Objects are passed to a method by use of call-by-reference.

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

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

A. True

B. False

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4

A static class method can be invoked by simply using the name of the method alone.

A. True

B. False

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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)

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4

Java always provides a default constructor to a class.

A. True

B. False

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4

All methods in an abstract class must be declared abstract.

A. True

B. False

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4

Which of the following classes are available in the java.lang package?

A. Random

B. Stack

C. String Buffer

D. Vector

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4

Every method of a final in class is implicitly final.

A. True

B. False

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4

Which of the following methods can be used to remove a component from the display?

A. remove()

B. desappear()

C. hide()

D. move()

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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

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

A. True

B. False

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4

In order to connect to a database through java program we must create _______-

A. Connection, Statement, ResultSet

B. Connection, ResultSet

C. Statement< ResultSet

D. Connection, Statement

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4

Which of the following command lines options generates documentation for all classes and methods?

A. -protected

B. -public

C. -private

D. -encoding

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4

Which of the following will produce a value of 22 if x=22.9:

A. Ceil(x)

B. Round(x)

C. Rint(x)

D. Abs(x)

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4

Any method in a supper class can be over ridden in its subclass.

A. True

B. False

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4

It is perfectly legal to assign a subclass object to a supper class reference.

A. True

B. False

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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

Which of the following are the wrapper classes?

A. Random

B. Vector

C. Byte

D. all of the above

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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

executeUpdate automatically updates data because___________

A. auto commit is on, by default

B. It performs a hidden commit statement as well

C. Does not commit

D. None of the above.

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4

A method declared as static can not access non-static class members.

A. True

B. False

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4

When the string objects are compared with ==, the result is true If the strings contain the same values.

A. True

B. False

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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

In the code below, what data types the variable x can have?

A. byte b1 = 5;

B. byte b2 = 10;

C. x = b1 * b2;

D. int short