12. Date date = new Date(); 13. df.setLocale(Locale.ITALY); 14. String s = df.format(date); The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14, 2000?() A、 The value of s is 14-dic-2004.B、 The value of s is Dec 14, 2000.C、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 13.
12. Date date = new Date(); 13. df.setLocale(Locale.ITALY); 14. String s = df.format(date); The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14, 2000?()
- A、 The value of s is 14-dic-2004.
- B、 The value of s is Dec 14, 2000.
- C、 An exception is thrown at runtime.
- D、 Compilation fails because of an error in line 13.
相关考题:
Datedate=newDate();13.df.setLocale(Locale.ITALY);14.Strings=df.format(date);ThevariabledfisanobjectoftypeDateFormatthathasbeeninitializedinline11.WhatistheresultifthiscodeisrunonDecember14,2000?() A.Thevalueofsis14-dic-2004.B.ThevalueofsisDec14,2000.C.Anexceptionisthrownatruntime.D.Compilationfailsbecauseofanerrorinline13.
DateFormatdf;15.Datedate=newDate();16.//insertcodehere17.Strings=df.format(date);Whichtwo,insertedindependentlyatline16,allowthecodetocompile?() A.df=newDateFormat();B.df=Date.getFormatter();C.df=date.getFormatter();D.df=date.getDateFormatter();E.df=DateFormat.getDateInstance();F.df=DateFormat.getInstance();
Given:Which code fragment, inserted at line 23, allows the code to compile?() A.df = new DateFormat();B.df = Date.getFormat();C.df = date.getFormat();D.df = DateFormat.getFormat();E.df = DateFormat.getInstance();
Given:12.Datedate=newDate();13.df.setLocale(Locale.ITALY);14.Strings=df.format(date);ThevariabledfisanobjectoftypeDateFormatthathasbeeninitializedinline11.WhatistheresultifthiscodeisrunonDecember14,2000?()A.Thevalueofsis14-dic-2000.B.ThevalueofsisDec14,2000.C.Anexceptionisthrownatruntime.D.Compilationfailsbecauseofanerrorinline13.
下列程序将Date对象写入文件file42.txt中,选择正确的语句填入下列程序中的横线处。 package ch1; impbrt java. io. *; import java. util. *; public class ex42 { static String fileName = "ch1\\file42.txt"; static Date date = null; public static void main(String[] args) { date = new Date(); try { FileOutputStream fos = new FileOutputStream(file Name); ObjectOutStream os = new ObjectOutputStream(fos); oos.______; oos.close(); fos.close(); System.out.println(date.toString()); } catch(Exception e) { System.out.println(e.getMessage()); } } }A.writeObject()B.writeObject(date)C.write(date)D.writeByte(date)
下列方法中,用于返回当前日期的方法是?() A.Date()B. Date(int year, int month, int date)C.Date(String s)D.Date(long date)
( 34 )在下列程序的空白处,应填入的正确选项是Import java.io.*;Pulilc class ObjectStreamTest{Publilc static void main(string args[]) throws IOException{ObjectOutputStream s= new ObjectOutputStream(new FileOutputStream( “ serial.bin ” ));Java .util.Date d= new Java.util.Date();Oos___________ (d);ObjectInputStream is=new ObjectInputStream(new FileOutputStream( “ serial.bin ” ));try{java.util.date restoredDate =(Java.util.Date) ois.readObject();System.out.println( “ read object back from serial.bin file: ”+ restoredDate);}Catch (ClassNotFoundException cnf) {System.out.println ( “ class not found ” );}}A ) WriterObjectB ) WriterC )BufferedWriterD ) WriterObject
11. public static void main(String[] args) { 12. Object obj =new int[] { 1,2,3 }; 13. int[] someArray = (int[])obj; 14. for (int i: someArray) System.out.print(i +“ “) 15. } What is the result? ()A、 1 2 3B、 Compilation fails because of an error in line 12.C、 Compilation fails because of an error in line 13.D、 Compilation fails because of an error in line 14.E、 A ClassCastException is thrown at runtime.
16. Date d = new Date(0L); 17. String ds = “December 15, 2004”; 18. // insert code here What updates d‟s value with the date represented by ds?()A、 18. d = df.parse(ds);B、 18. d = df.getDate(ds);C、 18. try { 19. d = df.parse(ds); 20. } catch(ParseException e) { };D、 18. try { 19. d = df.getDate(ds); 20. } catch(ParseException e) { };
11. public static void main(String[] args) { 12. Object obj = new Object() { 13. public int hashCode() { 14. returns 42; 15. } 16. }; 17. System.out.println(obj.hashCode()); 18. } What is the result? () A、 42B、 An exception is thrown at runtime.C、 Compilation fails because of an error on line 12.D、 Compilation fails because of an error on line 16.E、 Compilation fails because of an error on line 17.
11. static class A { 12. void process() throws Exception { throw new Exception(); } 13. } 14. static class B extends A { 15. void process() { System.out.println(”B”); } 16. } 17. public static void main(String[] args) { 18. new B().process(); 19. } What is the result?() A、 BB、 The code runs with no output.C、 Compilation fails because of an error in line 12.D、 Compilation fails because of an error in line 15.E、 Compilation fails because of an error in line 18.
11. class Converter { 12. public static void main(String[] args) { 13. Integer i = args[0]; 14. int j = 12; 15. System.out.println(”It is “ + (j==i) + “that j==i.”); 16. } 17. } What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?() 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.
33. Date d = new Date(0); 34. String ds = “December 15, 2004”; 35. // insert code here 36. try { 37. d = df.parse(ds); 38. } 39. catch(ParseException e) { 40. System.out.println(”Unable to parse “+ ds); 41. } 42. // insert code here too Which will create the appropriate DateFormat object and add 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.getDateJnstance(); 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.getDateJnstance(); 42. d.setLocalTime( (60 * 60 * 24) + d.getLocalTime());
Given: 1.d is a valid, non-null Date object 2.df is a valid, non-null DateFormat object set to the current locale What outputs the current locale’s country name and the appropriate version of d’s date?()A、Locale loc = Locale.getLocale(); System.out.println(loc.getDisplayCountry()+ " " + df.format(d));B、Locale loc = Locale.getDefault(); System.out.println(loc.getDisplayCountry()+ " " + df.format(d));C、Locale loc = Locale.getLocale();System.out.println(loc.getDisplayCountry()+ " " + df.setDateFormat(d));D、 Locale loc = Locale.getDefault();System.out.println(loc.getDisplayCountry()+ " " + df.setDateFormat(d));
11. public static void append(List list) { list.add(”0042”); } 12. public static void main(String[] args) { 13. List intList = new ArrayList(); 14. append(intList); 15. System.out.println(intList.get(0)); 16. } What is the result?() A、 42B、 0042C、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 13.E、 Compilation fails because of an error in line 14.
14. DateFormat df; 15. Date date = new Date(); 16. //insert code here 17. String s = df.format( date); Which two,inserted independently at line 16, allow the code to compile?()A、 df= new DateFormat();B、 df= Date.getFormatter();C、 df= date.getFormatter();D、 df= date.getDateFormatter();E、df = DateFormat.getDateInstance();F、 df= DateFormat.getInstance();
Given: 12.Date date = new Date(); 13.df.setLocale(Locale.ITALY); 14.String s = df.format(date); The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14, 2000?()A、The value of s is 14-dic-2000.B、The value of s is Dec 14, 2000.C、An exception is thrown at runtime.D、Compilation fails because of an error in line 13.
Given a valid DateFormat object named df,and 16.Date d = new Date(0L); 17.String ds = "December 15, 2004"; 18.//insert code here What updates d’s value with the date represented by ds?()A、18. d = df.parse(ds);B、18. d = df.getDate(ds);C、18. try {19. d = df.parse(ds);20. } catch(ParseException e) { };D、18. try {19. d = df.getDate(ds);20. } catch(ParseException e) { };
单选题11. public static void main(String[] args) { 12. Object obj =new int[] { 1,2,3 }; 13. int[] someArray = (int[])obj; 14. for (int i: someArray) System.out.print(i +“ “) 15. } What is the result? ()A 1 2 3B Compilation fails because of an error in line 12.C Compilation fails because of an error in line 13.D Compilation fails because of an error in line 14.E A ClassCastException is thrown at runtime.
单选题11. public static void main(String[] args) { 12. Object obj = new Object() { 13. public int hashCode() { 14. returns 42; 15. } 16. }; 17. System.out.println(obj.hashCode()); 18. } What is the result? ()A 42B An exception is thrown at runtime.C Compilation fails because of an error on line 12.D Compilation fails because of an error on line 16.E Compilation fails because of an error on line 17.
单选题Given: 11. public static void main(String[] args) { 12. Object obj = new int[] { 1, 2, 3 }; 13. int[] someArray = (int[])obj; 14. for (int i : someArray) System.out.print(i + " "); 15. } What is the result? ()A Compilation fails because of an error in line 13.B A ClassCastException is thrown at runtime.C 1 2 3D Compilation fails because of an error in line 14.E Compilation fails because of an error in line 12.
单选题11. static class A { 12. void process() throws Exception { throw new Exception(); } 13. } 14. static class B extends A { 15. void process() { System.out.println(”B”); } 16. } 17. public static void main(String[] args) { 18. new B().process(); 19. } What is the result?()A BB The code runs with no output.C Compilation fails because of an error in line 12.D Compilation fails because of an error in line 15.E Compilation fails because of an error in line 18.
多选题14. DateFormat df; 15. Date date = new Date(); 16. //insert code here 17. String s = df.format( date); Which two,inserted independently at line 16, allow the code to compile?()Adf= new DateFormat();Bdf= Date.getFormatter();Cdf= date.getFormatter();Ddf= date.getDateFormatter();Edf = DateFormat.getDateInstance();Fdf= DateFormat.getInstance();
单选题Given: 12.Date date = new Date(); 13.df.setLocale(Locale.ITALY); 14.String s = df.format(date); The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14, 2000?()AThe value of s is 14-dic-2000.BThe value of s is Dec 14, 2000.CAn exception is thrown at runtime.DCompilation fails because of an error in line 13.
单选题12. Date date = new Date(); 13. df.setLocale(Locale.ITALY); 14. String s = df.format(date); The variable df is an object of type DateFormat that has been initialized in line 11. What is the result if this code is run on December 14, 2000?()A The value of s is 14-dic-2004.B The value of s is Dec 14, 2000.C An exception is thrown at runtime.D Compilation fails because of an error in line 13.
单选题Given a valid DateFormat object named df,and 16.Date d = new Date(0L); 17.String ds = "December 15, 2004"; 18.//insert code here What updates d’s value with the date represented by ds?()A18. d = df.parse(ds);B18. d = df.getDate(ds);C18. try {19. d = df.parse(ds);20. } catch(ParseException e) { };D18. try {19. d = df.getDate(ds);20. } catch(ParseException e) { };
单选题Given a valid DateFormat object named df,and 16.Date d = new Date(0L); 17.String ds = "December 15, 2004"; 18.//insert code here What updates d’s value with the date represented by ds?()A18. d = df.parse(ds);B18. d = df.getDate(ds);C18. try {19. d = df.parse(ds);20. } catch(ParseException e) { };D18. try {19. d = df.getDate(ds);20. } catch(ParseException e) { };