已知:DataSet data=new DataSet();则删除数据集data中person数据表的第5行数据的方法为()A、 data.Tables["person "].Rows[5].Delete();B、 data.Tables["person "].Rows.Delete(5);C、 data.Tables["person "].Rows[4].Delete();D、 data.Tables["person "].Rows[].Delete(4);

已知:DataSet data=new DataSet();则删除数据集data中person数据表的第5行数据的方法为()

  • A、 data.Tables["person "].Rows[5].Delete();
  • B、 data.Tables["person "].Rows.Delete(5);
  • C、 data.Tables["person "].Rows[4].Delete();
  • D、 data.Tables["person "].Rows[].Delete(4);

相关考题:

能将程序补充完整的选项是( )。class Person{ private int a; public int change(int m){ return m; }}public class Teacher extends Person{ public int b; public static void main(String arg[]) { Person p = new Person(); Teacher t = new Teacher(); int i; ______ }} B.A.i=mB.i=bC. i=p.aD.i=p. change(50)

3 The ‘person specification’ is derived from the job description.Required:(a) Explain what is meant by the terms:(i) ‘person specification’; (4 marks)

能将程序补充完整的选项是______。 class Person{ private int a; phblic int change(int m){return m;} } public class Teacher extends Person{ public int b; public static void main(String arg[ ]){ Person p=new Person( ); Teacher t=new Teacher( ); int i; ______; } }A.i=mB.i=bC.i=p.aD.i=p.change(50)

给出下列的不完整的类代码,则哪个语句可以被加到横线处? ( ) class Person{ String name,department; int age; public Person(String n){name=n;} public Person(String n,int s){name=n; age=a;} public Person(String n,String d,int a){ department=d;______ } }A.Person(n,a);B.this(Person(n,a));C.this(n,s);D.this(name,age);

有以下程序:includeincludeusingnameSpacestd;classperson{ intage; Char*nam 有以下程序:include <iostream>include <string>using nameSpace std;class person{int age;Char * name;public:person ( int i, Char * str ){int j;j = strlen( str ) + 1;name = new char[ j ];strcpy( name, str );age = i;}~person(){delete name;cout<<"D";}void display(){cout<<name<<":"<<age;}};int main(){person demo( 30,"Smith" );demo.display();return 0;}则该程序的输出结果为:【 】。

You are creating a Web Form. The Web Form allows users to rename or delete products in a list. You create a DataTable named dtProducts that is bound to a GridView. DataTable has the following four rows. dtProducts.Rows(0)(ProductName) = SoapdtProducts.Rows(1)(ProductName) = BookdtProducts.Rows(2)(ProductName) = ComputerdtProducts.Rows(3)(ProductName) = SpoondtProducts.AcceptChanges()The user utilizes a Web Form to delete the first product. You need to set the RowStateFilter property of the DataTables DefaultView so that only products that have not been deleted are shown. To which value should you set the DataTabless DefaultView.RowStateFilter?()A. Data View Row State.Modified OriginalB. Data View Row State.Modified CurrentC. Data View Row State.Current RowsD. Data View Row State.Added

使用VC6打开考生文件夹下的工程test28_3。此工程包含一个test28_3.cpp,其中定义了类Person,但该类的定义并不完整。请按要求完成下列操作,将程序补充完整。(1)定义类Person的私有数据成员forename、surname 和 money,forename 和 surname都是char型的指针数据,money是double型的数据。请在注释“//**1**”之后添加适当的语句。(2)完成类Person的带三个参数的构造函数Person(char *f, char *s,double m),分别为forename和surname申请新的空间来存储参数f和s指针指向的内容,注意空间的大小,最后把参数m的值赋给money,请在注释“//**2**”之后添加适当的语句。(3)完成类Person的析构函数的定义,把forename和surname指向的空间释放,请在注释“//**3**”之后添加适当的语句。(4)完成类Person的成员函数display的定义,使其以格式“forname surname has money”的形式输出内容,请在注释“//**4*。”之后添加适当的语句。注意:除在指定位置添加语句之外,请不要改动程序中的其他内容。输出结果如下:Richard Berk has 1000.56源程序文件test28_3.cpp清单如下:include <iostream.h>include <string.h>class Person{private://** 1 **double money;public:Person(char *f, char *s, double m);~Person();void display();};Person::Person(char *f, char *s, double m){//** 2 **strcpy(forename, f);surname = new char[strlen(s)+1];strcpy(surname, s);money=m;}Person: :-Person (){//** 3 **}void Person:: display ( ){//** 4 **}void main ( ){Person p("Richard", "Berk", 1000.56);p.display ( );}

给出下列的不完整的类代码,则下列的( )语句可以加到横线处。 class Person{ String name,department; int age public Person(String n){name=n;} public Person(String n,int a){name=n;age=a;} pubilc Person(String n,String d,int a) { _______________ department=d; } }A.Person(n,a);B.this(Person(n,a));C.this(n,a);D.this(name,age);

在下列程序的划线处应填入的语句是class Person { private int a;}public class Man extends Person{ public int b; public static void main (String arg []){ Person p=new Person(); Man t=new Man(); int i: }}A.i=w;B.i=bC.i=p.a;D.i=t.b;

下列程序中需要清理动态分配的数组,划线处应有的语句是_______。 include class pers 下列程序中需要清理动态分配的数组,划线处应有的语句是_______。include<iostream.h>class person{int age,tall;public:person( ){age=0;tall=40;cout<<"A baby is born."<<endl;}person(int i){age=i;tall=40;cout<<"A old person."<<endl;}person(int i,int j){age=i;tall=j;cout<<"a old person with tall."<<endl;)~person( ){cout<<"person dead."<<endl;}void show( ){cout<<"age="<<age<<",tall="<<tall<<endl;}};void main( ){person*ptr;ptr=new person[3];ptr[0]=person( );ptr[1]=person(18);ptr[2]=person(20,120);for(int i=0;i<3;i++)ptr[i].show( );______}

给出下面不完整的类代码,则横线处的语句应该为( )。 class Person { String name,department; int age; public Person (Strings) {name=s;} public Person (String s,intA.{name=s;age=a;} public Person (String n,String d,intA){ __________ department=d; } }A)Person (n,A);B.this (Person(n,A));C.this(n,A);D.this(name,age);

Which of the following will DELETE all of the rows from table T03?() A.DELETE * FROM TABLE T03B.DELETE ALL FROM T03C.DELETE * FROM T03D.DELETE FROM T03

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; }

在下列程序的划线处应填入的语句是 ( ) class Person { private int a; } public class Man extends Person { public int b public static void main(String arg[]) { Person P=new Person(); Man t=new Man(); int i; ______ } }A.i=w;B.i=b;C.i=p.a;D.i=t,b;

1. public class Person {  2. private String name;  3. public Person(String name) { this.name = name; }  4. public boolean equals(Person p) {  5. return p.name.equals(this.name);  6. }  7. }  Which is true?() A、 The equals method does NOT properly override the Object.equals method.B、 Compilation fails because the private attribute p.name cannot be accessed in line 5.C、 To work correctly with hash-based data structures, this class must also implement the hashCode method.D、 When adding Person objects to a java.util.Set collection, the equals method in line 4 will prevent duplicates.

public class Person {  private name;  public Person(String name) {  this.name = name;  }  public int hashCode() {  return 420;  }  }  Which is true?() A、 The time to find the value from HashMap with a Person key depends on the size of the map.B、 Deleting a Person key from a HashMap will delete all map entries for all keys of typePerson.C、 Inserting a second Person object into a HashSet will cause the first Person object to beremoved as a duplicate.D、 The time to determine whether a Person object is contained in a HashSet is constant and does NOT depend on the size of the map.

在Person的一个派生类Employee里调用Person类的构造函数正确方式为()。A、base.Person(name,age)B、base(name,age)C、Person(name,age)D、this(name,age)

要从当前数据表中彻底删除某些记录,应先后选用的两个命令是()A、DELETE RECALLB、DELETE UNPACKC、DELETE PACKD、PACK DELETE

Which of the following will DELETE all of the rows from table T03?()A、DELETE * FROM TABLE T03B、DELETE ALL FROM T03C、DELETE * FROM T03D、DELETE FROM T03

To clean up old records that are in a Flashback Data Archive and are past the retention period, what must the DBA do?()  A、 TRUNCATE the archive table.B、 DROP the Flashback Data Archive.C、 Nothing;expired rows are automatically removed.D、 Nothing;expired rows are moved to an archive table.E、 Delete entries from the archive where the metadata date retained is greater than the retention period.

You need to resolve the double counting of transactions issue in the existing reports. What should you do?()A、Apply a many-to-many relationship between the Transaction measure group and the Person dimension in the WoodgroveSSAS database.B、Apply a Conditional Split transformation in the Transaction data in the SSIS package.C、Delete the AccountHolder table in the WoodgroveDW database.D、Apply a foreign key relationship between the Person table and the Transaction table in the WoodgroveDW database.

You are creating a Web Form. The Web Form allows users to rename or delete products in a list. You create a DataTable named dtProducts that is bound to a GridView. DataTable has the following four rows. dtProducts. Rows[0]["ProductName"] = “Soap”;dtProducts. Rows[1][“ProductName”]= “Book”;dtProducts. Rows[2][“ProductName”]= “Computer”;dtProducts. Rows[3][“ProductName”]= “Spoon”;dtProducts. AcceptChanges( ); The user utilizes a Web Form to delete the first product. You need to set the RowStateFilter property of the DataTables DefaultView so that only products that have not been deleted are shown. To which value should you set the DataTabless DefaultView.RowStateFilter? ()A、Data V iewRowState.ModifiedOriginal;B、Data V iewRowState.ModifiedCurrent;C、Data V iewRowState.CurrentRows;D、Data V iewRowState.Added;

单选题The way to ______ new words varies from person to person, depending on many factors.AreciteBrehearseCmemorizeDrecall

单选题public class Person {  private name;  public Person(String name) {  this.name = name;  }  public int hashCode() {  return 420;  }  }  Which is true?()A The time to find the value from HashMap with a Person key depends on the size of the map.B Deleting a Person key from a HashMap will delete all map entries for all keys of typePerson.C Inserting a second Person object into a HashSet will cause the first Person object to beremoved as a duplicate.D The time to determine whether a Person object is contained in a HashSet is constant and does NOT depend on the size of the map.

单选题已知:DataSet data=new DataSet();则删除数据集data中person数据表的第5行数据的方法为()A data.Tables[person ].Rows[5].Delete();B data.Tables[person ].Rows.Delete(5);C data.Tables[person ].Rows[4].Delete();D data.Tables[person ].Rows[].Delete(4);

单选题To clean up old records that are in a Flashback Data Archive and are past the retention period, what must the DBA do?()A TRUNCATE the archive table.B DROP the Flashback Data Archive.C Nothing;expired rows are automatically removed.D Nothing;expired rows are moved to an archive table.E Delete entries from the archive where the metadata date retained is greater than the retention period.

单选题According to the context we can guess that a genius is _____ while an idiot is _____.Aa normal person . . . a funny personBa strong person . . . a weak personCa highly intelligent person . . . a foolish or weak-minded personDa famous person . . . an ordinary person