Jim has many basketballs,but-I have o_______ one.
第1题:
A.Has-arelationshipsshouldneverbeencapsulated.
B.Has-arelationshipsshouldbeimplementedusinginheritance.
C.Has-arelationshipscanbeimplementedusinginstancevariables.
D.Is-arelationshipscanbeimplementedusingtheextendskeyword.
E.Is-arelationshipscanbeimplementedusingtheimplementskeyword.
F.Anarrayoracollectioncanbeusedtoimplementaone-to-manyhas-arelationship.
G.TherelationshipbetweenMovieandActressisanexampleofanis-arelationship.
第2题:
A. many - to - one
B. one - to - one
C. one - to - many
D. many - to - many
第3题:
请看一下代码,《插入代码》处应填入的代码是()Map map=new HashMap(); map.put(“tom”,123.6); map.put(“jim”,234.5); map.put(“terry”,45.3); 《插入代码》 其中《插入代码》处要实现的功能是把key为“jim”的value值在原有数字的基础上添加100。
A.map.put(“jim”,map.get(“jim”)+100);
B.map.set(“jim”,map.get(“jim”)+100);
C.map.put(“jim”,234.5);
D.map.set(“jim”,234.5);
第4题:
Jim ______already ______in this school for two years.
A、was; studying
B、will; study
C、has; studied
D、are; studying
第5题:
第6题:
通过 SQL,在表 Actor 中选择 FirstName 等于 Jim 而 LastName 等于 Carter 的所有记录的表述正确的是()。
A.SELECT * FROM Actor WHERE FirstName LIKE 'Jim' AND LastName LIKE 'Carter'
B.SELECT FirstName='Jim', LastName='Carter' FROM Actor
C.SELECT * FROM Actor WHERE FirstName='Jim' AND LastName='Carter'
D.SELECT * FROM Actor WHERE FirstName='Jim' OR LastName='Carter'