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Wipro Core Java Interview Questions
Questions Answers Views Company eMail

What is garbage collection in Java, and how can it be used ?

32 58277

Differentiate Vector and ArrayList?

6 8341

Differentiate constructor and a method and how are it be used?

7 8854

What is an abstract class?

7 7682

How can final class be used?

5 9632





By what default value is an object reference declared as an instance variable?

1 10904

Java support what type of parameter passing ?

7 12229

Explain the term serialization?

10 10050

Is there is any error if you have multiple main methods in the same class?

10 11385

What is Overriding and how can it be used?

7 13792

Explain pass by reference and pass by value?

8 12255

what is the Diff. between Access Specifiers and Access Modifiers?

39 97153

Can multiple catch statements be used in exceptions ?

6 7175

Difference between Application and Applet ?

4 7408

Can a class inherit the constructors of its superclass?

9 15010

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Un-Answered Questions

For each of the following program segments,give a big zero analysis for the running time 1.For (i=0;i

968


How to sendKeys in QTP? Diff b/w sendkeys and device replay? Diff b/w function and Sub? Diff b/w Array and List Different Types of running Keys other than Fast, slow,Normal mode Regular expression for http://newtours.demoaut.com Difference between \w and \W How to generate script button Recording Types Different Types of Actions? Using DP performance degrades, If Yes why? How to close all the opened browsers? Diff b/w SystemUtil.Run and invoke application? If qtp not recognized the combo box How to select values from drop down?

2424


What is high adherence steel bar? I have a general specification which refers to High Adherence steel bars, coils and meshes to BS EN 10080 and BS 4449 or BS 4483. Is this just general re-bar or is there something different about it? The spec originated in France.

2407


What is the different between GUI map and GUI map files?

974


what is the messsage u r going to get from an objectoriented programing?

966






I am going to attend an interview for the post of jr. Accounts Officer in airport authority of india,pls help me to prepare for the interview??

735


Provide an example of a shell script which logs into SQLPLUS as SYS, determines the current date, changes the date format to include minutes & seconds, issues a drop table command, displays the date again, and finally exits.

908


What contaminants are affecting fisheries?

1041


1)How will u implement SCD2 by using surrogate key. 2)What are the disadvantages with surrogate key. 3)How will you handle nulls in your project for the varchar, integer data types. 4)Can I use two fact tables in star schema. 5)3 jobs are running on the 2 nodes after I added one more node so can I compile those jobs to run on three nodes.

2737


behaviour of capacitor & inductor in ac circuits at t=0 & t=infinity.

833


what is the difference between test case and result matrix

968


what did u do in the sap sd project ?how did u maping your client business?plz i need help....

1004


What s gland sealing steam?

703


How is the keycode calculated while interfacing a keyboard with a microprocessor?

768


how to implement spiral model on railway reservation?.

1978






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