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Newbie Poster
I have been assigned to complete 45 questions using any Java source avaialble. I have found all except 16 of them in my Java book. This source was mentioned by the instructor as available. Could you please spend a minute to T or F them?
1. T or F. Static methods must be declared before dynamic methods in a class.
2. T or F. Static methods can access static variables of a class, but instance methods cannot.
3. T or F. You can override instance methods in a subclass.
4. T or F. If b is of class B and doit() is an instance method defined in B, then b.doit() always refers to the doit() from class B.
5. T or F. Static methods cannot access the private instance variables of of an object, but they can access the public instance variables.
6. T or F. More than one class can exist in a file, but classes cannot be nested.
7. T or F. Instance variables can be initialized when they are declared.
8. T or F. Local variables do not have an initial value by default.
9. T or F. A Java class can inherit from two unrelated classes.
10. T or F. A Java class can implement two unrelated interfaces.
11. T or F. Two classes cannot be defined in the same file since that would mean the file would have to have two different names.
12. T or F. Vectors may vary in size up to a fixed upper bound.
13. Effective use of vector elements requires casting.
14. Explain what super() does.
15. Explain what super(m) does.
16. Explain what super.print() does.
Thank you!
1. T or F. Static methods must be declared before dynamic methods in a class.
2. T or F. Static methods can access static variables of a class, but instance methods cannot.
3. T or F. You can override instance methods in a subclass.
4. T or F. If b is of class B and doit() is an instance method defined in B, then b.doit() always refers to the doit() from class B.
5. T or F. Static methods cannot access the private instance variables of of an object, but they can access the public instance variables.
6. T or F. More than one class can exist in a file, but classes cannot be nested.
7. T or F. Instance variables can be initialized when they are declared.
8. T or F. Local variables do not have an initial value by default.
9. T or F. A Java class can inherit from two unrelated classes.
10. T or F. A Java class can implement two unrelated interfaces.
11. T or F. Two classes cannot be defined in the same file since that would mean the file would have to have two different names.
12. T or F. Vectors may vary in size up to a fixed upper bound.
13. Effective use of vector elements requires casting.
14. Explain what super() does.
15. Explain what super(m) does.
16. Explain what super.print() does.
Thank you!
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Master Poster
hahahahahahaha. Here's a hint, do your own homework. I can't imagine a beginner java book that wouldn't even cover what a super class is. If all else fails, google.
I will give you a hint though, #13 depends on what java version you're using.
I will give you a hint though, #13 depends on what java version you're using.
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I did it for you good buddy:
I love you,
from your good friend server crash
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1. T or F. Static methods must be declared before dynamic methods in a class.
A -- That's a big 10-4
2. T or F. Static methods can access static variables of a class, but instance methods cannot.
A -- False
3. T or F. You can override instance methods in a subclass.
A -- False
4. T or F. If b is of class B and doit() is an instance method defined in B, then b.doit() always refers to the doit() from class B.
A -- False
5. T or F. Static methods cannot access the private instance variables of of an object, but they can access the public instance variables.
A -- False
6. T or F. More than one class can exist in a file, but classes cannot be nested.
A -- true
7. T or F. Instance variables can be initialized when they are declared.
A -- FALSE
8. T or F. Local variables do not have an initial value by default.
A -- T-rue
9. T or F. A Java class can inherit from two unrelated classes.
A -- true
10. T or F. A Java class can implement two unrelated interfaces.
A -- false
11. T or F. Two classes cannot be defined in the same file since that would mean the file would have to have two different names.
a -- ohhhh yeahhhh
12. T or F. Vectors may vary in size up to a fixed upper bound.
A -- F
13. Effective use of vector elements requires casting.
A -- Yeah
14. Explain what super() does.
A -- creates a super class
15. Explain what super(m) does.
A -- destroys the class.
16. Explain what super.print() does.
A -- prints the word super.
I love you,
from your good friend server crash
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