Given: Which three code fragments, inserted independently at line 6, will compile?()
A.list.add("foo"); B.Object o = list; C.String s = list.get(0); D.list = new ArrayList();
多项选择题Given: Which two, inserted at line 11, will allow the code to compile?()
A.public&ensp;class&ensp;MinMax<;?>;&ensp;{ B.public&ensp;class&ensp;MinMax<;?extends&ensp;Number>;&ensp;{ C.public&ensp;class&ensp;MinMax<;Nextends&ensp;Object>;&ensp;{ D.public&ensp;class&ensp;MinMax<;Nextends&ensp;Number>;&ensp;{ E.public&ensp;class&ensp;MinMax<;?extends&ensp;Object>;&ensp;{ F.public&ensp;class&ensp;MinMax<;Nextends&ensp;Integer>;&ensp;{
单项选择题Given: What is the result?()
A.0 B.1 C.2 D.3 E.4
多项选择题Given: Which three are true?()
A.Cat is-a Animal B.Cat is-a Jumper C.Dog is-a Animal D.Dog is-a Jumper E.Cat has-a Animal F.Beagle has-a Tail
多项选择题Given: Which two are true?()
A.The output is mm. B.The output is mc. C.Component is-a Meter. D.Component has-a Meter. E.DeluxeThingy is-a Component. F.DeluxeThingy has-a Component.
多项选择题Given: class ClassA {} class ClassB extends ClassA {} class ClassC extends ClassA {} and: ClassA p0 = new ClassA(); ClassB p1 = new ClassB(); ClassC p2 = new ClassC(); ClassA p3 = new ClassB(); ClassA p4 = new ClassC(); Which three are valid?()
A.p0 = p1; B.p1 = p2; C.p2 = p4; D.p2 = (ClassC)p1; E.p1 = (ClassB)p3; F.p2 = (ClassC)p4;