12) Which of the following is considered a top-level container? A) Panel B) Fram
ID: 3679189 • Letter: 1
Question
12) Which of the following is considered a top-level container?
A) Panel
B) Frame
C) Box
D) Layout Manager
E) A, B, and C
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21) True or False: Just as arrays can only have a fixed number of elements, set at the time the array is declared, a parameter list also can only have a fixed number of elements, set at the time the method is declared.
23) True or False: It is not possible to test out any single method or class of a system until the entire system has been developed, and so all testing is postponed until after the implementation phase.
25) True or False: Any class can implement an interface, but no classes can implement more than a single interface.
Explanation / Answer
12) Ans(b) Frame is considered as top level container. further to which we can add components.So it is called as top level container.
21)false, Only in case of arrays we have to pass the size while array is declared. Parameter list does not have a fixed number of elements.it grows dynamically.
23)False, We can test a method or a single class during the implementation phase by writing some dummy code.
24)False , Any class can implement more than one interface in Java. But is cannot extends more than more class in java.
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