多项选择题X 纠错
A.Foo.beta（） is a valid invocation of beta（）.
B.Foo.alpha（） is a valid invocation of alpha（）.
C.Method beta（） can directly call method alpha（）.
D.Method alpha（） can directly call method beta（）.
你可能喜欢
单项选择题
A.It is true that j==i.
B.It is false that j==i.
C.An exception is thrown at runtime.
D.Compilation fails because of an error in line 13.
单项选择题
A.35. DateFormat df = DateFormat.getDateFormat（）；42. d.setTime（ （60 * 60 * 24） + d.getTime（））；
B.35. DateFormat df = DateFormat.getDateInstance（）；42. d.setTime（ （1000 * 60 * 60 * 24） + d.getTime（））；
C.35. DateFormat df = DateFormat.getDateFormat（）；42. d.setLocalTime（ （1000*60*60*24） + d.getLocalTime（））；
D.35. DateFormat df = DateFormat.getDateInstance（）；42. d.setLocalTime（ （60 * 60 * 24） + d.getLocalTime（））；
单项选择题
A.a b c
B.1 2 3
C.a1b2c3
D.a1 b2 c3
多项选择题
A.String s = c.readLine（）；
B.char[] c = c.readLine（）；
C.String s = c.readConsole（）；
D.char[] c = c.readConsole（）；
E.String s = c.readLine（"%s"， "name "）；
单项选择题
A.Compilation fails.
B.After line 15， the value of age is 5.
C.After line 15， the value of age is 3.
D.An exception is thrown at runtime.
多项选择题
A.Objects from classes that use aggregation cannot be serialized.
B.An object serialized on one JVM can be successfully deserialized on a different JVM.
C.The values in fields with the volatile modifier will NOT survive serialization and deserialization.
D.The values in fields with the transient modifier will NOT survive serialization and deserialization.
E.It is legal to serialize an object of a type that has a supertype that does NOT implement java.io.Serializable.
多项选择题
A.The value of b is 2.
B.The value of a is 3.14.
C.The value of b is 2.00.
D.The value of a is 3.141.
E.The value of a is 3.1415.
F.The value of a is 3.1416.
单项选择题
A.Compilation fails.
B.Nothing is added to the file system.
C.Only a new file is created on the file system.
D.Only a new directory is created on the file system.
E.Both a new file and a new directory are created on the file system.
单项选择题
A.Compilation fails.
B.An exception is thrown at runtime.
C.Synchronizing the run（） method would make the class thread-safe.
D.The data in variable "x" are protected from concurrent access problems.
E.Declaring the doThings（） method as static would make the class thread-safe.
