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///incompatible types///

 
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www.levteck.com/MockExams/TestSarga.htm
Given a TextArea using a proportional pitch font and constructed like this:
TextField t = new TextArea("12345", 5, 5);
Which statement is true?
A. The displayed width shows exactly five characters on each line unless otherwise constrained
B. The displayed height is five lines unless otherwise constrained.
C. The maximum number of characters in a line will be five.
D. The user will be able to edit the character string.
ans:B,D
why?
and there is ont thing,the code will cause compile error.
Any help are appreciated.
 
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Originally posted by chao-long liao:
www.levteck.com/MockExams/TestSarga.htm
Given a TextArea using a proportional pitch font and constructed like this:
TextField t = new TextArea("12345", 5, 5);
and there is ont thing,the code will cause compile error.


Correct, this won't compile because TextField and TextArea don't have an "is-a" relationship...
If it was: TextComponent tc =new TextArea("12345", 5, 5 ); -- it would work fine and b and d would be correct.
Moving this to MockExam Errata. Please continue te discussion there.
 
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