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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

Creating this array

854 answers
460 good - 394 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following:

832 answers
611 good - 221 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following prints

589 answers
198 good - 391 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

248 answers
210 good - 38 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

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

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

864 answers
592 good - 272 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java
String s = null;
int i = 0;
try {
    for (i = 1; i <= 64; i++) {
935 answers
21 good - 914 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

Class clazz = void.class;

196 answers
164 good - 32 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

The following

142 answers
29 good - 113 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

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

863 answers
42 good - 821 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

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

107 answers
86 good - 21 bad
 
21.08.2019
Peter Lawrey
CEO at Chronicle Software
Java

You can write

synchronized (new int[0]) { }

however you shouldn't because

182 answers
158 good - 24 bad