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EDITx is an open IT Library of questions to share and gain knowledge. Become an EDITx author because you care: share your knowledge to fit everyone benefit with a quality IT education.

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As contributor of the IT library, you allow others to use your questions, in the same way you can make use of theirs. Nevertheless, you keep the intellectual property on your work and will be notified any time that an author is using your questions or when someone answers your questions. Moreover, your privileged status allows you to set up private and public tests, to share your questions with your students, friends, colleagues or acquaintances and to get the results in real time.

... is what you give !

To become an EDITx Author, you just need to set up 5 QCM questions, in the field of your choice, and indicate the right answer. If your questions allows a better "Education in IT for X", you will receive the status and advantages of an EDITx Author.

Post date Author Category Question Stats
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Select words that are not Java Language Keywords ?

234 answers
33 good - 201 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which of these methods of class String is used to compare two String objects for their equality...

398 answers
338 good - 60 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Assuming that the code bellow compile. What will be the console output ?

460 answers
209 good - 251 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which is a valid declarations of a String?

246 answers
187 good - 59 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which of the following lines can be inserted at line 11 to print true?

350 answers
76 good - 274 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the output of the following code?

401 answers
229 good - 172 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Assuming that the code bellow compile. What will be the console output ?

247 answers
80 good - 167 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Assuming that the code bellow compile. What will be the console output ?

459 answers
254 good - 205 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the output of the following code?

358 answers
207 good - 151 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which of the following statements about polymorphism are true? (Choose all that apply)

349 answers
108 good - 241 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which of these methods can be used to obtain set of all keys in a map?

243 answers
178 good - 65 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the output of the following code:

372 answers
190 good - 182 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Assuming that the code bellow compile. What will be the console output ?

445 answers
199 good - 246 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which of the following for loops will be an infinite loop (with i as an int)?

376 answers
126 good - 250 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the result of the following code? (Choose all that apply) ?

235 answers
135 good - 100 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What does Collections.sort internally uses when number of elements are greater than 7?

271 answers
107 good - 164 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Assuming that the code bellow compile. What will be the console output ?

227 answers
135 good - 92 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which assertion is true ?

470 answers
256 good - 214 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Pi = 3.14 ; is

472 answers
377 good - 95 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is byte code in the context of Java?

244 answers
181 good - 63 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which of the following are not checked exceptions? (Choose all that apply)

224 answers
45 good - 179 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

LinkedHashSet implements

336 answers
147 good - 189 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Vector extends which of these?

225 answers
113 good - 112 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

PermGen space has been replaced with which of these in Java 8

268 answers
138 good - 130 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the console output ?

454 answers
208 good - 246 bad