Class Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Topic :: Class

Class Interview Questions

Questions Answers Views Company eMail

what are the uses of Class class and what it returns? explain it with the example code.

1 3838

class test { private static void main(String []adsf) { } } explain me that the above code is error or exception

3 5580

class a extends b { } class b extends a { } why java doesn't support cyclic pls explain me with example

Wipro,

3 9964

If memory is allocated to a class,when object of the class is created then how do we use the abstract class methods.coz v cant create obj of abstract class, only reference is created,when the abstract class data and members got the space in memory??

2286

Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 7754

class Database { public static $_instance; public static function getInstance() { if(!isset(self::$_instance)) self::$_instance = new Database(DB_SERVER, DB_USER, DB_PASS, DB_NAME); print_r(self::$_instance); return self::$_instance; } } can any one explain "self::$_instance = new Database(DB_SERVER, DB_USER, DB_PASS, DB_NAME);" this line

1 4821

Can we make a class with class with same;suppose public class abc { public class abc { } }

1 3217

what is constructor in a class, how it is work, how it is call?

2 4745

define oops with class and object

HCL, Tech Mahindra,

5 10650

can we declare a variable by name "this" in a class? Please explain?

IBM,

3 6816

What is asset class?

3 7230

in the lcmv what type of effect onm the mhc class i molecule

2223

What is Movement type, valuation Class, General Modifier, Valuation Area?

Satyam,

2 8775

how to make the double-tone class ? as we have singletone class..?

IBM, Microsoft,

1 5111

what is difference between interface and abstract class..?

4 7005