How to become an EDITx Author?

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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.

What you get...

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 Body Stats
21.08.2019
Peter Lawrey
Java

x != -x is false for which type/value?

139 answers
8 good - 131 bad
 
21.08.2019
Peter Lawrey
Java

You can write

340 answers
318 good - 22 bad
 
21.08.2019
Peter Lawrey
Java

Which of the line A,B,C,D doesn't compile?

130 answers
14 good - 116 bad
 
21.08.2019
Peter Lawrey
Java

One of these lines won't compile. Which one?

719 answers
625 good - 94 bad
 
21.08.2019
Peter Lawrey
Java

The following

747 answers
360 good - 387 bad
 
21.08.2019
Peter Lawrey
Java

Creating this array

494 answers
268 good - 226 bad
 
21.08.2019
Peter Lawrey
Java

If you define a field in an interface e.g.

551 answers
520 good - 31 bad
 
21.08.2019
Peter Lawrey
Java

You can write

synchronized (new int[0]) { }

however you shouldn't because

120 answers
26 good - 94 bad
 
21.08.2019
Peter Lawrey
Java

The following:

190 answers
55 good - 135 bad
 
21.08.2019
Peter Lawrey
Java

The following prints

497 answers
168 good - 329 bad
 
21.08.2019
Peter Lawrey
Java
String s = null;
int i = 0;
try {
    for (i = 1; i <= 64; i++) {
115 answers
105 good - 10 bad
 
21.08.2019
Peter Lawrey
Java

You can write

Class clazz = void.class;

591 answers
573 good - 18 bad
 
21.08.2019
Peter Lawrey
Java

The following statement:

142 answers
48 good - 94 bad
 
21.08.2019
Peter Lawrey
Java

If x is an int type which of these expressions cannot be negative?

116 answers
34 good - 82 bad