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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.

Correct Answer :

A. Two arguments of object type


Related Questions

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4

The programmer must explicitly create the system .in and system .out objects.

A. True

B. False

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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

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

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

Which of the following statements are valid array declarations?

A. int number();

B. float average[];

C. double[] marks;

D. counter int[];

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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

What is error in the following class definitions? 
abstract class xy { 
abstract sum(int x, int y) {
}
}

A. class header is not define properly

B. constructor is no defined

C. method is not defined properly

D. no error

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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

Consider the following class definitions:
 class maths { 
student student1;
}
class student {
String name;
}

This code represents:

A. an 'is a' relationship

B. a 'has a' relationship

C. both

D. neither

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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

Which of the following are not keywords?

A. NULL

B. Implements

C. Protected

D. None of the above

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4

Which of the following methods belong to the String class?

A. length()

B. compareTo()

C. substring()

D. all of the them

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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

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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

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

In RMI we invoke client method from remote server

A. True

B. False

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4

Which of the following are keywords?

A. integer

B. default

C. Boolean

D. Object

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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

A constructor must always invoke its supper class constructor in its first statement.

A. True

B. False

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4

If m and n are int type variables, what will be the result of the expression
'm % n' when m = -14 and n = -3?

A. 4

B. 2

C. -2

D. -4

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4

JdbcOdbcDriver is an object of Object class

A. True

B. False

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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

The setBackground() method is part of the class

A. Applet

B. Component

C. Container

D. Object

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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

The check box group class is a subclass of the component class.

A. True

B. False

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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

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

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

Which are the valid ways to create DataInputStream streams?

A. new DataInputStream(new File("in.dat"));

B. new DataInputStream(new FileInputStream("in.dat"));

C. new DataInputStream("in.dat");

D. new DataInputStream("in.data","r");

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4

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

A. start()

B. init()

C. runnable()

D. run()