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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 Body Stats
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following prints

791 answers
277 good - 514 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java
String s = null;
int i = 0;
try {
    for (i = 1; i <= 64; i++) {
882 answers
13 good - 869 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

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

256 answers
3 good - 253 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

763 answers
664 good - 99 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

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

139 answers
8 good - 131 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

Creating this array

795 answers
538 good - 257 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

Class clazz = void.class;

913 answers
544 good - 369 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following:

561 answers
219 good - 342 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

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

246 answers
25 good - 221 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following statement:

142 answers
48 good - 94 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following

143 answers
71 good - 72 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

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

657 answers
560 good - 97 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

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

130 answers
14 good - 116 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

synchronized (new int[0]) { }

however you shouldn't because

388 answers
35 good - 353 bad