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Thread: Which of the following propositions is true

  1. #1
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    Question Which of the following propositions is true

    hello please who can help me in this question

    Which of the following propositions is true ?? and if false why it false ?

    (a) A class can implement many interfaces but must extend a single class true ??? right ?
    (b) A class can implement many classes but must extend a single interface
    (c) A class can implement many classes and can extend many interfaces
    (d) A class must implement a single interface and extend a single class


    thanks in advance


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    Default Re: Which of the following propositions is true

    So (a) is your choice? Can you give your rationale for choosing that one? Or, why do you think the other choices are not correct?

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    Default Re: Which of the following propositions is true

    a true
    b false
    b false
    b false

    (a) because as i read java only can extend one class and implement many interfaces
    (b) some help plz
    (c) some help plz
    (d) some help plz

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    Default Re: Which of the following propositions is true

    The word "must" is usually a disqualifier in statements like these, especially in Java. Considering that (a) is true, what single class must every Java class extend?

    (b) - Focusing on the word "must" again, is there a single interface that Java classes must extend? Do classes extend interfaces?

    (c) - No "must" here, but what else is wrong with the statement?

    (d) - Similar to (b), is there a single interface that Java classes must implement?

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