One of the use cases in your web application uses many session-scoped attributes. At the end of the usecase，you want to clear out this set of attributes from the session object. Assume that this static variableholds this set of attribute names： 201.private static final Set USE_CASE_ATTRS； 202.static { 203.USE_CASE_ATTRS.add（"customerOID"）； 204.USE_CASE_ATTRS.add（"custMgrBean"）； 205.USE_CASE_ATTRS.add（"orderOID"）； 206.USE_CASE_ATTRS.add（"orderMgrBean"）； 207.} Which code snippet deletes these attributes from the session object？（）A、session.removeAll（USE_CASE_ATTRS）；B、for （ String attr ： USE_CASE_ATTRS ） {session.remove（attr）；}C、for （ String attr ： USE_CASE_ATTRS ） {session.removeAttribute（attr）；}D、for （ String attr ： USE_CASE_ATTRS ） {session.deleteAttribute（attr）；}E、session.deleteAllAttributes（USE_CASE_ATTRS）；
- A、session.removeAll（USE_CASE_ATTRS）；
- B、for （ String attr ： USE_CASE_ATTRS ） {session.remove（attr）；}
- C、for （ String attr ： USE_CASE_ATTRS ） {session.removeAttribute（attr）；}
- D、for （ String attr ： USE_CASE_ATTRS ） {session.deleteAttribute（attr）；}
- E、session.deleteAllAttributes（USE_CASE_ATTRS）；
相关考题：
有以下程序#include stdio.h#include string.hmain(){ char str[ ][20]={"One*World","One*Dream!"},*p=str[1];printf("%d,",strlen(p));printf("%s\n",p);}程序运行后的输出结果是A)9,One*WorldB)9,One*Dream !C)10,One*Dream !D)10,One*World
下面程序的输出结果是( )。 public class Sun { public static void main(String args[ ]) { int i = 1; switch (i) { case 0: System.out.println("zero"); break; case 1: System.out.println("one"); case 2; System.out.println("two"); default: System.out.println("default"); } } }A．oneB．one，defaultC．one，two，defaultD．default
下面的哪些程序段可能导致错误? ( ) Ⅰ: String s = "Gone with the wind"; String t = "good "; String k = s + t; Ⅱ: String s = "Gone with the wind"; String t; t = s[3] + "one"; Ⅲ: String s = "Gone with the wind"; String standard = s.toUpperCase(); Ⅳ: String s = "home directory"; String t = s-"directory":A．Ⅱ、ⅢB．Ⅱ、ⅣC．Ⅰ、ⅣD．Ⅲ、Ⅳ
阅读下列代码 public class Test{ String s="One World One Dream"; public static void main(String args[]){ System. out. println(s); } } 其运行结果是A．argsB．One World One DreamC．sD．编译时出错
在执行下面这段Java程序时： public class Test { public static void main (String[] args) { String s1=args[0]； String s2=args[1]； String s3=args[2]； } }若编译程序后键入命令: java Test one two three，那么变量s1所引用的字符串为( )。A．nullB．testC．oneD．java
关于下列代码编译或执行结果的描述中，正确是______。public class Test{public static void main(String args[]){TestThread pm1=new TestThread("one");pm1.start();TestThread pm2=new TestThread("Tow");pm2.start();}}class TestThread extends Thread(private String sTname="";TestThread(String s){sTname=s;}public void run(){for(int i=0;i＜2;i++){try{sleep(1000);}catch(InterruptedException e)()System.out.println(sTname+…);}}}A) 不能通过编译，TestThread类中不能定义变量和构造方法B) 输出One One Two TwoC) 输出Tow One One TwoD) 选项B或C都可能出现A．B．C．D．
关于slice或map操作,下面正确的是() A.var s []ints = append(s,1)B.var m map[string]intm["one"] = 1C.var s []ints = make([]int, 0)s = append(s,1)D.var m map[string]intm = make(map[string]int)m["one"] = 1
In C language,(70)is a collection of one or more variables, possibly of different types, grouped together under a single name for convenient handling.A．a structureB．a fileC．an arrayD．a string
阅读下面代码 public class Test { String s="One World One Dream"； public static void main(String[] args) { System.out.println(s)； } } 其运行的结果是A．argsB．World One DreamC．sD．编译时出错
下列的哪个程序段可能导致错误? ( )A．String s="hello"； String t="good"； String k=s+t;B．String s="hello"； String t； t=s[3]+"one"；C．String s="hello"； String standard=s.toUpperCase()；D．String s="hello"； String t=s+"good"；
下列语句能给数组赋值而不使用for循环的是A．myArray{[1]="One";[2]="Two";[3]="Three";}B．String s[5]=new String[]{"Zero", "One", "Two", "There", "Four"};C．String s[]=new String[]{"Zero", "One", "Two", "There", "Four"};D．String s[]=new String[]=|"Zero", "One", "Two", "There", "Four"};
下列语句能给数组赋值，而不使用for循环的是A．myArray{[1]="One"；[2]="Two"；[3]="Three"；}B．String s[5]=new String[] {"Zero","One","Two","Three","Four"}；C．String s[]=new String[] {"Zero","One","Two","Three","Four"}；D．String s[]=new String[]= {"Zero","One","Two","Three","Four"}；
Phonological rules may move phonemes from one place in the string to another. For example， Modern English verb ask was Old English askian， with the /k/preceding the/s/.Sound change as a result of sound movement is known as m（）.
class One { public One（） { System.out.print（1）； } } class Two extends One { public Two（） { System.out.print（2）； } } class Three extends Two { public Three（） { System.out.print（3）； } } public class Numbers{ public static void main（ String[] argv） { new Three（）； } } What is the result when this code is executed？（） A、 1B、 3C、 123D、 321E、 The code rims with no output.
下面的哪些程序片断可能导致错误（） A、String s = "Gone with the wind"； String t = " good "； String k = s + t；B、String s = "Gone with the wind"； String t； t = s[3] + "one"；C、String s = "Gone with the wind"； String standard = s.toUpperCase（）；D、String s = "home directory"； String t = s - "directory"
现有： import java.util.*； class AddStuff2 { public static void main（String [] args） { TreeSett=new TreeSet（）； if （t.add（"one"）） if （t.add（"two"）） if （t.add （"three"）） add（"four"）； for （String s ： t） System.out.print （s）； } } 结果为：（） A、 oneB、 one three twoC、 one two threeD、 one two three fourE、 four one three twoF、编译失败
Which of the following fragments might cause errors？（） A、 String s = "Gone with the wind"；String t = " good "；String k = s + t；B、 String s = "Gone with the wind"；String t；t = s[3] + "one"；C、 String s = "Gone with the wind"；String standard = s.toUpperCase（）；D、 String s = "home directory"；String t = s - "directory"；
A manufacturing company has a large facility which has its offices at one end and a manufacturing floor at the other. The company is looking to implement new equipment that requires access to the company’s SAN that is over 2.4 kilometers away in the office area. Which of the following solutions will satisfy this requirement？（）A、Install a longwave GBIC in the office SAN switch and string a multimode fibre from the office to the manufacturing floorB、Install a longwave GBIC in the office SAN switch and string a singlemode fibre from the office to the manufacturing floorC、Install a shortwave GBIC in the office SAN switch and string a multimode fibre from the office to the manufacturing floorD、Install a shortwave GBIC in the office SAN switch and string a singlemode fibre from the office to the manufacturing floor
多选题Your application demands frequent connection and disconnection from the database. You have three listener processes that are listening for the database PROD. While setting up the connect string using Oracle Enterprise Manager 10g Database Control， which two options would you select to balance the connection load across all the listener processes？（）AUse only the first address.BTry one address，selected at random.CTry each address，in order，until one succeeds.DTry each address，randomly，until one succeeds.
填空题Phonological rules may move phonemes from one place in the string to another. For example， Modern English verb ask was Old English askian， with the /k/preceding the/s/.Sound change as a result of sound movement is known as m（）.
多选题下面哪段语法执行正确（）AString s = Gone with the wind；String t = good ；String k = s + t；BString s = Gone with the wind；String t； t = s[3] + one；CString s = Gone with the wind；String standard = s.toUpperCase（）；DString s = home directory；String t = s - directory；
单选题class One { public One（） { System.out.print（1）； } } class Two extends One { public Two（） { System.out.print（2）； } } class Three extends Two { public Three（） { System.out.print（3）； } } public class Numbers{ public static void main（ String[] argv） { new Three（）； } } What is the result when this code is executed？（）A 1B 3C 123D 321E The code rims with no output.
多选题Which of the following fragments might cause errors？（）AString s = Gone with the wind；String t = good ；String k = s + t；BString s = Gone with the wind；String t；t = s[3] + one；CString s = Gone with the wind；String standard = s.toUpperCase（）；DString s = home directory；String t = s - directory；
多选题下面的哪些程序片断可能导致错误（）AString s = Gone with the wind； String t = good ； String k = s + t；BString s = Gone with the wind； String t； t = s[3] + one；CString s = Gone with the wind； String standard = s.toUpperCase（）；DString s = home directory； String t = s - directory
单选题现有： import java.util.*； class AddStuff2 { public static void main（String [] args） { TreeSett=new TreeSet（）； if （t.add（"one"）） if （t.add（"two"）） if （t.add （"three"）） add（"four"）； for （String s ： t） System.out.print （s）； } } 结果为：（）A oneB one three twoC one two threeD one two three fourE four one three twoF编译失败
单选题class Parent { String one， two； public Parent（String a， String b）{ one = a； two = b； } public void print（）{ System.out.println（one）； } } public class Child extends Parent { public Child（String a， String b）{ super（a，b）； } public void print（）{ System.out.println（one + " to " + two）； } public static void main（String arg[]）{ Parent p = new Parent（"south"， "north"）； Parent t = new Child（"east"， "west"）； p.print（）； t.print（）； } } Which of the following is correct？（）A Cause error during compilation. B south east C south to north east to west D south to north east E south east to west