多項(xiàng)選擇題

Given that c is a reference to a valid java.io.Console object，which two code fragments read a line of textfrom the console？（）

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 "）；

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單項(xiàng)選擇題

Given：
12.String csv = "Sue，5，true，3"；
13.Scanner scanner = new Scanner（ csv ）；
14.scanner.useDelimiter（"，"）；15. int age = scanner.nextInt（）；
What is the result？（）

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.

多項(xiàng)選擇題

Which three statements concerning the use of the java.io.Serializable interface are true？（）

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.

Given that c is a reference to a valid java.io.Console object，which two code fragments read a line of textfrom the console？（）

你可能感興趣的試題

Given： 12.String csv = "Sue，5，true，3"； 13.Scanner scanner = new Scanner（ csv ）； 14.scanner.useDelimiter（"，"）；15. int age = scanner.nextInt（）； What is the result？（）

Which three statements concerning the use of the java.io.Serializable interface are true？（）

Given that c is a reference to a valid java.io.Console object，which two code fragments read a line of textfrom the console？（）

Given：
12.String csv = "Sue，5，true，3"；
13.Scanner scanner = new Scanner（ csv ）；
14.scanner.useDelimiter（"，"）；15. int age = scanner.nextInt（）；
What is the result？（）

Which three statements concerning the use of the java.io.Serializable interface are true？（）