• 2021-04-14 问题

    下面程序的运行结果___ #include “stdio.h” int id=3; void main { int id=5; { int id; id=7; printf(“id=%d\n”, id ); } printf(“id=%d\n”, id ); }

    下面程序的运行结果___ #include “stdio.h” int id=3; void main { int id=5; { int id; id=7; printf(“id=%d\n”, id ); } printf(“id=%d\n”, id ); }

  • 2021-04-14 问题

    id是什么?int能否为id?如何封装成id?

    id是什么?int能否为id?如何封装成id?

  • 2022-06-27 问题

    以下程序段哪段是正确的() A: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10; B: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10 C: declare id int default 0; repeat set id=id+1; until id>=10 end repeat; D: declare id int default 0; repeat set id=id+1; until id>=10; end repeat;

    以下程序段哪段是正确的() A: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10; B: declare id int default 0; repeat set id=id+1; end repeat;<br> until id>=10 C: declare id int default 0; repeat set id=id+1; until id>=10 end repeat; D: declare id int default 0; repeat set id=id+1; until id>=10; end repeat;

  • 2022-06-05 问题

    hive里创建表test,表里添加两个字段id和name,以下哪个HQL是正确的( ) A: create test(id int, name string); B: create test(int id, string name); C: create table test(int id, string name); D: create table test(id int, name string)

    hive里创建表test,表里添加两个字段id和name,以下哪个HQL是正确的( ) A: create test(id int, name string); B: create test(int id, string name); C: create table test(int id, string name); D: create table test(id int, name string)

  • 2022-06-14 问题

    已知函数getStudent()定义为public Student getStudent(int ID),下列四个选项中可以与getStudent构成重载的方法是 A: private Student getStudent(int ID) B: public String getStudent(int ID) C: Student getStudent(String name) D: public Student get(int ID)

    已知函数getStudent()定义为public Student getStudent(int ID),下列四个选项中可以与getStudent构成重载的方法是 A: private Student getStudent(int ID) B: public String getStudent(int ID) C: Student getStudent(String name) D: public Student get(int ID)

  • 2022-06-05 问题

    阅读下面T-SQL语句,对变量赋值时存在错误的是( )(其中money为钱币数据类型,为其变量赋值可用或者不用$等货币符号)。 A: declare @id int ,@price money Set @id =100 Set @price=$2.21 B: declare @id int ,@price money Select @id=100,@price=2.21 C: declare @id int ,@price money set @id=100,@price=2.21 D: declare @id int ,@price money Select @id=100Select @price=$2.21

    阅读下面T-SQL语句,对变量赋值时存在错误的是( )(其中money为钱币数据类型,为其变量赋值可用或者不用$等货币符号)。 A: declare @id int ,@price money Set @id =100 Set @price=$2.21 B: declare @id int ,@price money Select @id=100,@price=2.21 C: declare @id int ,@price money set @id=100,@price=2.21 D: declare @id int ,@price money Select @id=100Select @price=$2.21

  • 2022-07-01 问题

    为表TEST中ID列添加主键约束的语法是() A: ALTER  TABLE  TEST  CHANGE( ID  INT  PRIMARY  KEY) B: ALTER  TABLE  TEST  ADD( ID  INT  PRIMARY  KEY) C: ALTER  TABLE  TEST  MODIFY( ID  INT  PRIMARY  KEY) D: ALTER  TABLE  TEST  ADD  CONSTRAINT PK  PRIMARY KEY (ID)

    为表TEST中ID列添加主键约束的语法是() A: ALTER  TABLE  TEST  CHANGE( ID  INT  PRIMARY  KEY) B: ALTER  TABLE  TEST  ADD( ID  INT  PRIMARY  KEY) C: ALTER  TABLE  TEST  MODIFY( ID  INT  PRIMARY  KEY) D: ALTER  TABLE  TEST  ADD  CONSTRAINT PK  PRIMARY KEY (ID)

  • 2022-06-18 问题

    智慧职教: 以下是按商品id删除商品信息的方法,请把程序补充完整: public int delete(long id){        SQLiteDatabase db=helper.getWritableDatabase();        int result=db.delete("account","_id=?",_____________);        db.close();        return  result;    }

    智慧职教: 以下是按商品id删除商品信息的方法,请把程序补充完整: public int delete(long id){        SQLiteDatabase db=helper.getWritableDatabase();        int result=db.delete("account","_id=?",_____________);        db.close();        return  result;    }

  • 2022-05-30 问题

    中国大学MOOC: class NumTest{ final int id = 1; int id2 = 1; NumTest(int id,int id2){ this.id = id; this.id2 = id2; } void printId(){ System.out.print(id+id2+ ); } public static void main(String&#91;&#93; args) { NumTest a = new NumTest(1,2); NumTest b = new NumTest(2,1); NumTest c = new NumTest(0,0); a.printId(); b.printId(); c.printId(); }}

    中国大学MOOC: class NumTest{ final int id = 1; int id2 = 1; NumTest(int id,int id2){ this.id = id; this.id2 = id2; } void printId(){ System.out.print(id+id2+ ); } public static void main(String&#91;&#93; args) { NumTest a = new NumTest(1,2); NumTest b = new NumTest(2,1); NumTest c = new NumTest(0,0); a.printId(); b.printId(); c.printId(); }}

  • 2022-06-19 问题

    hive创建表并指定列分隔符的正确的HQL是( )。 A: create table dbtest(id int, name string) row format delimited terminate by ','; B: create table dbtest(int id, string name) row format delimited by ','; C: create table dbtest(id int, name string) row format delimited fields terminated by ','; D: create table dbtest(int id, string name) row format delimited columns fields terminated by ',';

    hive创建表并指定列分隔符的正确的HQL是( )。 A: create table dbtest(id int, name string) row format delimited terminate by ','; B: create table dbtest(int id, string name) row format delimited by ','; C: create table dbtest(id int, name string) row format delimited fields terminated by ','; D: create table dbtest(int id, string name) row format delimited columns fields terminated by ',';

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