删除某个标记的属性,使用()方法。A、removeAttribute(String name)B、removeChild(Node node)C、replaceWholeText(String text)D、getNodeName()
删除某个标记的属性,使用()方法。
- A、removeAttribute(String name)
- B、removeChild(Node node)
- C、replaceWholeText(String text)
- D、getNodeName()
相关考题:
在jsp页面声明中定义了一个方法,下列( )代码不能放入该方法中public void test(HttpServletReqeust request){}A、HttpSession session =request.getSession();B、String name=(String)request.getAttribute("name");C、String name=(String)session.getAttibute("name");D、request.sendRedirect(“index.jsp”);
以下方法,哪个可使session无效?( )A.session.removeAttribute(String key)B.session.invalidate()C.session.setAttribute(String key)D.session.getAttribute(String key)
AWebservicereturnsalistofsystemusersinthefollowingformat.Youneedtopopulateadrop-downmenuwiththeIDsandnamesoftheusersfromtheWebservice,intheorderprovidedbytheservice.Whichcodesegmentshouldyouuse?() A.$.ajax({type:GET,url:serviceURL,success:function(xml){$.each($(xml),function(i,item){$().attr(value,id).text(tx).appendTo(#dropdown);});}});B.$.ajax({type:GET,url:serviceURL,success:function(xml){$(xml).find(user).each(function(){varid=$(this).id;vartx=$(this).name.text$().attr(value,id).text(tx).appendTo(#dropdown);});}});C.$.ajax({type:GET,url:serviceURL,success:function(xml){$(xml).find(user).each(function(){varid=$(this).attr(id);vartx=$(this).find(name).text();$().attr(value,id).text(tx).appendTo(#dropdown);});}});D.$.ajax({type:GET,url:serviceURL,success:function(xml){xml.find(user).each(function(node){varid=$(node).attr(id);vartx=$(node).find(name).text();$().attr(value,id).text(tx).appendTo(#dropdown);});}});
阅读下列函数说明和C++代码,将应填入(n)处的字句写在对应栏内。[说明]在一些大型系统中,大多数的功能在初始化时要花费很多时间,如果在启动的时候,所有功能(包括不用的功能)都要全面初始化的话,会导致应用软件要花很多时间才能启动。因此常将程序设计成到了实际要使用某种功能的阶段才初始化该功能。以下示例展示了Proxy(代理)模式,PrinterProxy类执行一些比较“轻”的方法,需要真正执行“重”的方法时才初始化Print类。图5-1显示了各个类间的关系。[图5-1][C++代码]class Printable{public:virtual void setPrinterName(string name)=0;virtual string getprinterName()=0;virtual void print(string name)=0;};class Printer:public Printable{private:string name;public:Printer(string name){cout<<"正在产生Printer的对象实例"<<endl;this->name=name;}void setPrinterName(string name){this->name=name;}string getPrinterName(){return name;}void print(string msg){cout<<"======="<<name<<"==========="<<endl;cout<<msg<<endl;}};class printerproxy :public (1) {private:String name;Printer *real;public:PrinterProxy(string name){(2)=NULL;this->name=name;}void setPrinterName(string name){if((3))real->setPrinterName(name);this->name=name;}string getPrinterName(){return name;}void print(string msg){(4);real->print(msg);}void realize(){if(real==NULL)real=(5);}};(1)
Simplify the following Boolean expression!((i ==12) || (j 15))struct Node {int value;Node* next;};1.1 Get the value of the Nth node from last node in the linked list.PARAM HEAD: the first element in the linked list:PARAM n: the number of the node counted reverselyRETURN: the value of the node, or -1 if not existsint GetValue(Node* HEAD, int n){}1.2 Delete a node WITHOUT using the HEAD pointer.PARAM p: A pointer pointed to a node in the middle of the linked list.RETURN: voidvoid Delete(Node* p){}1.3 Insert a new node before p WITHOUT using the HEAD pointerPARAM p: A pointer pointed to a node in the middle of the linked list.PARAM value: new Node valueRETURN: voidvoid Insert(Node* p, int value){}Question 2:Please write a String class with following features:
阅读以下说明,Java代码将应填入(n)处的字句写在对应栏内。【说明】链表和栈对象的共同特征是:在数据上执行的操作与在每个对象中实体存储的基本类型无关。例如,一个栈存储实体后,只要保证最后存储的项最先用,最先存储的项最后用,则栈的操作可以从链表的操作中派生得到。程序6-1实现了链表的操作,程序6-2实现了栈操作。import java.io.*;class Node //定义结点{ private String m_content;private Node m_next;Node(String str){ m_content=str;m_next=null; }Node(String str,Node next){ m_content=str;m_next=next; }String getData() //获取结点数据域{ return m_content;}void setNext(Node next] //设置下一个结点值{ m_next=next; }Node getNext() //返回下一个结点{ return m_next; )}【程序6-1】class List{ Node Head;List(){ Head=null; }void insert(String str) //将数据str的结点插入在整个链表前面{ if(Head==null)Head=new Node(str);else(1)}void append(String str) //将数据str的结点插入在整个链表尾部{ Node tempnode=Head;it(tempnode==null)Heed=new Node(str);else{ white(tempnode.getNext()!=null)(2)(3) }}String get() //移出链表第一个结点,并返回该结点的数据域{ Srting temp=new String();if(Head==null){ System.out.println("Errow! from empty list!")System.exit(0); }else{ temp=Head.getData();(4) }return temp;}}【程序6-2】class Stack extends List{ void push(String str) //进栈{ (5) }String pop() //出栈{ return get();}}
Person p = new Person(“张三”,23);这条语句会调用下列哪个构造方法给属性进行初始化() A.public Person(){}B.public Person(String name,int age) { this.name = name; this.age = age; }C.public Person(int age,String name) { this.age = age; this.name = name; }D.public Person(String name) { this.name = name; }
阅读以下说明和Java代码,将应填入(n)处的字句写在对应栏内。[说明]在一些大型系统中,大多数的功能在初始化时要花费很多时间,如果在启动的时候,所有功能(连不用的功能)都要全面初始化的话,会连带影响到应用软件要花很多时间才能启动。因此常将程序设计成到了实际要使用某种功能的阶段才初始化该功能。以下示例展示了Proxy(代理)模式,PrinterProxy类执行一些比较“轻”的方法——设置名称和取得名称,需要真正执行“重”的方法——真正打印——时才初始Print类。图6-1显示了各个类间的关系。[图6-1][Java代码]//Printable.JavapubliC (1) Printable{public abstract void setPrinterName(String name);public abstract String getprinterName();public abstract void print(String string);}//Printer.Javapublic class Printer implements Printable{private String name;public Printer(){System.out.println("正在产生Printer的对象实例");}public Printer(String name){this.name=name;heavyJob("正在产生Printer的对象实例("+name+")");public void setPrinterName(String name){this.name=name;public String getPrinterName(){return name;public void print(String string){System.out.println("===" +name+" ====");System.out.println(string);}}//PrinterProxy.Javapublic class PrinterProxy (2) Printable{private String name;private Printer real;public PrinterProxy(){}public PrinterProxy(String name){this.name=name;}public gynchronized void setPrinterName(String name){if( (3) ){real.setPrinterName(name);}this.name=name;}public String getprinterName(){return name;}public void print(String string){(4);real.print(string);}private synchronized void realize(){//产生真正的Printer对象if(real==null){real=(5);}}}(1)
下列选项哪些是正确的JSP表达式语法格式()。A、%string name="YXQ"%=string name="您好"%String name="YXQ"% B、%=String name="您好"% C、%="您好";% D、%="YXQ"%
下面哪个方法设置MIME类型?()A、setHeader(String headerName,String headerValue)B、setContentType(String mimeType)C、setContentLength(int length)D、addCookie(Cookie c)E、addHeader(String name,String value)
public class Employee{ private String name; public Employee(String name){ this.name = name; } public String getName(){ return name; } } public class Manager extends Employee{ private String department; public Manager(String name,String department){ this.department = department; super(name); (应于上一行掉位置) System.out.println(getName()); } } Super的位置是否在方法的首行 执行语句new Manager(“smith”,”SALES”)后程序的输出是哪项?()A、 smithB、 nullC、 SALESD、 编译错误
public class Employee{ private String name; public Employee(String name){ this.name = name; } public String getName(){ return name; } } public class Manager extends Employee{ private String department; public Manager(String name,String department){ this.department = department; super(name); System.out.println(getName()); } } 执行语句new Manager(“smith”,”SALES”)后程序的输出是哪项?() A、 smithB、 nullC、 SALESD、 编译错误
下列类Account的构造方法中,声明正确的是?() A、Account (String name)()B、Account (String name)C、Account (name)()D、NewAccount (String name)()
Given that c is a reference to a valid java.io.Console object, which two code fragments read a line of text from 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 ");F、char[ ] c = c.readLine("%s", "name ");
在JAVA EE中,request对象的()方法可以获取页面请求中一个表单组件对应多个值时的用户的请求数据。A、String getParameter(String name)B、String[] getParameter(String name)C、String getParameterValuses(String name)D、String[] getParameterValues(String name)
在JSP页面中使用〈jsp:setProperty name="beanid" property="bean的属性" value="字符串" /〉格式给Long类型的Bean属性赋值,会调用哪个数据类型转换方法?()A、Long.parseLong(String s)B、Integer.parseInt(Stirng s)C、Double.parseDouble(String s)
如果设treeView1=new TreeView(),TreeNode node=new TreeNode("根结点"),则treeView1.Nodes.Add(node)返回的是一个类型的值。()A、TreeNode;B、int;C、string;D、TreeView;
我们定义一个Account类来描述银行账户,银行账户有账户名、金额等属性特征,同时有存款、取款等行为特征,下述代码适合描述的是哪项?() A、class Accountf String name;//账户 S tring amount; //金额 Account (String name)( ) void deposit (double mount){ //存款 ) void withdraw (double mount){ //取款 } )B、class Accountf String name;//账户d ouole amount; //金额 Account(double amount){ } void deposit (double mount){ //存款 ) void withdraw (double mount){ //取款 ) )C、class Accountf String name;//账户 double amount; //金额 Account (String name){} void deposit (double mount){//存款 ) void withdraw (double mount){ //取款 ) )D、class Accountf String name;//账户 double amount;//金额 Account (String name){} void deposit(){//存款 ) void withdraw(){//取款 ) )
Public class test ( Public static void stringReplace (String text) ( Text = text.replace (‘j’ , ‘i’); ) public static void bufferReplace (StringBuffer text) ( text = text.append (“C”) ) public static void main (String args[]} ( String textString = new String (“java”); StringBuffer text BufferString = new StringBuffer (“java”); stringReplace (textString); bufferReplace (textBuffer); System.out.printLn (textString + textBuffer); ) ) What is the output?()
Which gets the name of the parent directory file “file.txt”?()A、 String name= File.getParentName(“file.txt”);B、 String name= (new File(“file.txt”)).getParent();C、 String name = (new File(“file.txt”)).getParentName();D、 String name= (new File(“file.txt”)).getParentFile();E、 Directory dir=(new File (“file.txt”)).getParentDir(); String name= dir.getName();
Which HttpSession method stores an object in a session?()A、 put(String name. Object value)B、 set(String name. Object value)C、 setAttribute(String name. Object value)D、 putAttribute(String name. Object value)E、 addAttribute(String name. Object value)
单选题下列选项哪些是正确的JSP表达式语法格式()。A%string name="YXQ"%=string name="您好"%String name=YXQ% B%=String name=您好% C%=您好;% D%=YXQ%
单选题下面哪个方法设置MIME类型?()AsetHeader(String headerName,String headerValue)BsetContentType(String mimeType)CsetContentLength(int length)DaddCookie(Cookie c)EaddHeader(String name,String value)
单选题Which HttpSession method stores an object in a session?()A put(String name. Object value)B set(String name. Object value)C setAttribute(String name. Object value)D putAttribute(String name. Object value)E addAttribute(String name. Object value)
单选题在JSP页面中使用〈jsp:setProperty name="beanid" property="bean的属性" value="字符串" /〉格式给Long类型的Bean属性赋值,会调用哪个数据类型转换方法?()ALong.parseLong(String s)BInteger.parseInt(Stirng s)CDouble.parseDouble(String s)
单选题下列类Account的构造方法中,声明正确的是?()AAccount (String name)()BAccount (String name)CAccount (name)()DNewAccount (String name)()
单选题在JAVA EE中,request对象的()方法可以获取页面请求中一个表单组件对应多个值时的用户的请求数据。AString getParameter(String name)BString[] getParameter(String name)CString getParameterValuses(String name)DString[] getParameterValues(String name)