Given: What is the result?()
A.true true B.false true C.true false D.false false
单项选择题Given: What creates the appropriate DateFormat object and adds a day to the Date object?()
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Given: 11.String test = a1b2c3 ; 12.String[] tokens = test.split( d ); 13.for(String s: tokens) System.out.print(s + ); What is the result?()
A.a b c B.1 2 3 C.a1b2c3 D.a1 b2 c3
多项选择题Giventhatcisareferencetoavalidjava.io.Consoleobject,whichtwocodefragmentsreadalineoftextfromtheconsole?()
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.
多项选择题Whichthreestatementsconcerningtheuseofthejava.io.Serializableinterfacearetrue?()
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.