TechnologyProfessionTest
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TechnologyProfessionTest
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Newest
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Last review
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Published
3952
To review
73
44 questions
Hard
13 votes882 runs0 comment
Easy
7 votes880 runs0 comment
Can a class implements several interfaces ?
Anonymous authorat Mar 28, 2022
Medium
4 votes791 runs2 comments
Medium
4 votes656 runs0 comment
Medium
3 votes419 runs0 comment
Medium
2 votes823 runs3 comments
In this code, the class B extends the class A. The class B overrides the method talk() from the class A. The object b is an instance of the class B. The object a is an instance of the class A. The object a is assigned to the object b. The object a calls the method talk(). The method talk() from the class B is called.
Anonymous authorat Mar 28, 2023
Medium
2 votes771 runs0 comment
Hard
2 votes760 runs2 comments
What does the following code return ? public class A { public void talk() { echo "I am A" } public secretTalk() { this.talk() } } public class B extends A { private void talk() { echo "I am B" } public secretTalk() { this.talk() } } A b = new B() b.talk() b.secretTalk() Answer : "I am A" "I am B"
Anonymous authorat Mar 28, 2022
Easy
2 votes712 runs0 comment
Medium
2 votes220 runs0 comment
Easy
1 vote709 runs0 comment
Easy
1 vote707 runs0 comment
Easy
1 vote234 runs0 comment
Easy
1 vote219 runs0 comment
Medium
1 vote216 runs0 comment