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Tech Mahindra Interview Questions

Questions Answers Views Company eMail

If age of Raju is 20% less than Sanju,then age of Sanju is how many % more than Raju

2 4479

What are possible key words, we can use to declare a class?

2 4009

Carnot cycle

2 5413

How does final modifier work?

1 3472

i have multiple .csv files in a unix directory. every file is having variable names as header.even for empty file also. suppose take 3 files a.csv b.csv c.csv a.csv contains data as name;age,salary; raja;34;4000; ravi;33;5000; kumar;25;3000; b.csv contains data as name;age,salary; ajay;40;4500; and c.csv contains name;age,salary; (only headers) Now i want to import and append all these files in to a single dataset. i tried infile statement with *.csv to import all at a time. but i m not getting correct data. please help me . its urgent. thank you in advance

2 4894

i have some csv files in a directory which have sub-directories also. now how can i merge all .csv files in to one with a single header. for example: have some 4 files. 1.csv--------name,age,sal abc,25,4000 2.csv--------name,age,sal vgd,32,3500 3.csv--------name,age,sal hfg,20,5000 4.csv--------name,age,sal asd,15,2000 now my output file should be like 5.csv----------name,age,sal abc,25,4000 vgd,32,3500 hfg,20,5000 asd,15,2000 and please explain the code for me. as i am new to scripting. thank you in advance

1828

what is stacked chart , Bar chart, Column chart?

1 3506

What is the more accurate formula to convert wet concrete to dry aggregate instead of the 54% method?

2039

Why neutral cable carry current.

1974

what is system testing? explain with an example.

1 3843

What is Test Design ?( Urgent) and Test Design for Printer?

2068

What is good customer service and give me an example?

2275

if i have a query as flat file how can we load data to target table

1398

How. To pass the entrance test

1 2806

C language questions for civil engineering

1722

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Un-Answered Questions

Why singleton class is sealed in c#?

945

How many public class files are possible to define in Scala source file?

Are hash tables ordered?

900

Let us say you have a collection of multiple maps in cics. So if you are asked to determine the exact storage space that is available in a symbolicmap, then how will you compute it?

1136

Can you sort a to z in word?

589

How many secondary indexes can we create in a table?

1064

What is partial data sandbox?

515

Draw the circuit diagram of 1φ capacitor commutated current source inverter and explain its operation with equivalent circuits for different modes and necessary wave forms?

1160

What keyword allows us to implement abstraction better in flex? : adobe flex action script

What is joomla best used for?

What is an asynchronous api?

548

Should a main method be compulsorily declared in all java classes?

1070

Does any body has ORACLE Certification Dumps or Materials on 9i DBA, 10G DBA, Internet Application Developer, OCP 8i to 10g DBA Upgrade, Oracle 11i if any body have it, please kindly drop an email to: taruni_2k8@yahoo.com

2109

Why does one remove or add nodes in a Hadoop cluster frequently?

695

What is bagging and boosting in Machine Learning?

180