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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

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

430 answers
193 good - 237 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) ?

227 answers
131 good - 96 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Select words that are not Java Language Keywords ?

214 answers
31 good - 183 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the output of the following code?

366 answers
210 good - 156 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

LinkedHashSet implements

319 answers
143 good - 176 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which is a valid declarations of a String?

227 answers
170 good - 57 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the output of the following code?

335 answers
190 good - 145 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?

258 answers
104 good - 154 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Which assertion is true ?

452 answers
249 good - 203 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the console output ?

429 answers
196 good - 233 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)?

359 answers
120 good - 239 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is the output of the following code:

356 answers
180 good - 176 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

260 answers
130 good - 130 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 ?

431 answers
234 good - 197 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 ?

234 answers
75 good - 159 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?

332 answers
72 good - 260 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 ?

215 answers
128 good - 87 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 ?

419 answers
186 good - 233 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)

211 answers
41 good - 170 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Vector extends which of these?

212 answers
104 good - 108 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)

339 answers
103 good - 236 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

Pi = 3.14 ; is

445 answers
352 good - 93 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?

226 answers
163 good - 63 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...

376 answers
318 good - 58 bad
 
26.03.2018
Daniel Penninck
Co-Founder & advisor at Block0.io
Java

What is byte code in the context of Java?

228 answers
171 good - 57 bad