多項(xiàng)選擇題

Which two interfaces provide the capability to store objects using a key-value pair？（）

A. Java.util.Map.
B. Java.util.Set.
C. Java.util.List.
D. Java.util.StoredSet.
E. Java.util.StoredMap.
F. Java.util.Collection.

你可能感興趣的試題

單項(xiàng)選擇題

public class X {
public object m （） {
object o = new float （3.14F）；
object oa = new object [1]；
oa[0]= o；
o = null；
oa[0] = null；
return o；
}
}
When is the float object created in line 3， eligible for garbage collection？（）

A. Just after line 5.
B. Just after line 6.
C. Just after line 7.
D. Just after line 8（that is， as the method returns）.

多項(xiàng)選擇題

Which statements about static inner classes are true？（）

A. A static inner class requires a static initializer.
B. A static inner class requires an instance of the enclosing class.
C. A static inner class has no reference to an instance of the enclosing class.
D. A static inner class has access to the non-static members of the outer class.
E. Static members of a static inner class can be referenced using the class name of the static inner class.

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Which two interfaces provide the capability to store objects using a key-value pair？（）

你可能感興趣的試題

public class X { public object m （） { object o = new float （3.14F）； object oa = new object [1]； oa[0]= o； o = null； oa[0] = null； return o； } } When is the float object created in line 3， eligible for garbage collection？（）

Which statements about static inner classes are true？（）

Which two interfaces provide the capability to store objects using a key-value pair？（）

public class X {
public object m （） {
object o = new float （3.14F）；
object oa = new object [1]；
oa[0]= o；
o = null；
oa[0] = null；
return o；
}
}
When is the float object created in line 3， eligible for garbage collection？（）