The Reader/Writer class hierarchy is character-oriented, and the InputStream/OutputStream class hierarchy is byte-oriented.

mx

• Dec 2nd, 2022

The Reader/Writer class hierarchy is character-oriented, and the InputStream/OutputStream class hierarchy is byte-oriented.

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What is Super Charging? What role does Super Charging plays in manufacturing industry?

aakash arora

• Oct 8th, 2013

I mostly prefer reading the books which are off the track. You can call it creative in a sense.

Thrillers are mostly preferred because it require blood to rush across my mind.

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SATISH

• Jun 21st, 2012

Sorry I dont agree with working in groups, as the amount of concentration which is done working single will not be there in case of working in groups. Plus there is always ego popping up as one will s...

vjunloc

 Profile Answers by vjunloc Questions by vjunloc

• Sep 17th, 2008

I believe that working in groups improves the productivity as there are multiple brains working  together for achieving the objective and ofcourse  creativity level will shoot up.

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What will happen if a motor designed for 230 Volts 50 Hz is connected to a supply of 230 Volts 400 Hz

Muhammad Majid Altaf

• Aug 26th, 2011

Changing frequency will change the speed of motor, suppose in case of induction motor, speed of motor is proportional to its frequency. Doubling the frequency doubles the speed.

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How to introduce ourselves and what is the format for self introduction ?

Polymorhism: is a feature of OOPl that at run time depending upon the type of object the appropriate method is called.Inheritance: is a feature of OOPL that represents the "is a" relationship between different objects(classes). Say in real life a manager is a employee. So in OOPL manger class is inherited from the employee class. Encapsulation: is a feature of OOPL that is used to hide the information.

subash

• Aug 6th, 2011

Polymorphism: it is used to derive the class one in many form
inheritance: deriving the neq class from the existing class
encapsulation: hiding the information

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kurtz182

 Profile Answers by kurtz182 Questions by kurtz182

• Dec 14th, 2009

Many people have contributed to my learning and growth over the years both personally and through books that I've read.  The MOST IMPORTANT person (besides myself of course) would be my fathe...

aravind_mk_cit

 Profile Answers by aravind_mk_cit Questions by aravind_mk_cit

• Jan 30th, 2007

People around me and the mistake i made helped me a lot to character correction(self developmet).

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The operating system's task scheduler allocates execution time to multiple tasks. By quickly switching between executing tasks, it creates the impression that tasks execute sequentially.

subashinikumar

 Profile Answers by subashinikumar Questions by subashinikumar

• Jun 3rd, 2008

On a single processor, Multithreading generally occurs by time-division multiplexing ("time slicing") in very much the same way as the parallel execution of multiple tasks (computer multitas...

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Multiple inheritance is a feature in C++ by which one class can be of different types. Say class teachingAssistant is inherited from two classes say teacher and Student.

subashinikumar

 Profile Answers by subashinikumar Questions by subashinikumar

• Jun 3rd, 2008

A derived class if it inherits from more than one direct base class,it is call multiple inheritance.

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Class ABC{static final float GRAVITATIONAL_CONSTANT = 9.8;public void getConstant(){system.out.println("Gravitational_Constant: " + GRAVITATIONAL_CONSTANT);}}

manish

• Jan 16th, 2007

class abc{ final const float PI=3.14f;}

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By using the static method there is no need creating an object of that class to use that method. We can directly call that method on that class. For example, say class A has static function f(), then we can call f() function as A.f(). There is no need of creating an object of class A.

nagagopal

 Profile Answers by nagagopal Questions by nagagopal

• Oct 17th, 2006

Static methods are class methods. in which we can use only static data varibles of any calss of the program. these methods are invoke with out create objects of corresponding the class.

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SELECT Student.name, Student.SIDFROM Student, LevelWHERE Student.SID = Level.SIDAND Level.Level = "freshman"AND Student.Course = 3;

Asheesh pandey

• Dec 26th, 2005

I think this is the right answer of the above query:SELECT Student.name, Student.SID FROM Student, LevelWHERE Student.SID = Level.SIDAND Level.Level = "freshman"AND Student.Course = 3;

Behnam

• Dec 10th, 2005

select Name,SID from student where Course=3 and SID in ( select SID from Level where Level='freshman' )

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When you use Serializable interface, your class is serialized automatically by default. But you can override writeObject() and readObject()two methods to control more complex object serailization process. When you use Externalizable interface, you have a complete control over your class's serialization process.

Srinivasa Rao Yenti

• Dec 15th, 2005

Java gives you control over the serialization process through the java.io.Externalizable interface. The java.io.Externalizable interface extends the java.io.SerialiJava gives you control over the seri...

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Object oriented programming languages directly represent the real life objects. The features of OOPL as inhreitance, polymorphism, encapsulation makes it powerful.

virtual methods are used to use the polymorhism feature in C++. Say class A is inherited from class B. If we declare say fuction f() as virtual in class B and override the same function in class A then at runtime appropriate method of the class will be called depending upon the type of the object.

DeadLock.