一、不定项选择题

1、B  C错是因为编译后还需要链接，D函数可以单独编译，编译成目标文件

2、

3、D

4、CD

5、

6、B

7、

(1)C

(2)A

8、D

9、

10、ABCD

二、JAVA语言部分

1、B

2、C

3、AB  char型用'\u四位的16进制'表示也是正确的

4、AB

5、AB,B

三、数据库

create table S(

Sno int primary key auto_increment,

Sname varchar(20)

);

insert into S(sname) values('he');

insert into S(sname) values('wang');

create table C(

Cno int primary key auto_increment,

Cname varchar(20),

Ccredit int

);

insert into C(cname,Ccredit) values('JAVA',3);

insert into C(cname,Ccredit)  values('C',2);

Drop table if exists SC;

create table SC(

id int primary key auto_increment,

Sno int,

Cno int,

Grade int

);

insert into SC(Sno,cno,Grade) values(1,1,100);

insert into SC(Sno,cno,Grade) values(1,2,90);

insert into SC(Sno,cno,Grade) values(2,1,80);

insert into SC(Sno,cno,Grade) values(2,2,70);

insert into SC(Sno,cno,Grade,Teacher) values(3,1,80,'zhang');

insert into SC(Sno,cno,Grade,Teacher) values(3,2,70,'zhang');

1)select distinct Sname From S,SC,C where S.sno = SC.sno and c.Cno = SC.cno and

Cname='JAVA' order by Sname desc;

2)select S.Sno,Sum(Ccredit) From S,SC,C where S.sno = SC.sno and c.Cno = SC.cno

and Grade>60 group by Sno having sum(Ccredit)>80;

3)ALTER table SC ADD Teacher varchar(20) not null;

4)CREATE VIEW SCSum(sno,Ccredit) as Select S.Sno,Sum(Ccredit)  From S,SC,C

where S.sno = SC.sno and c.Cno = SC.cno group by Sno;

5)delete from SC where sno not in(select distinct S.Sno from S);

四、编程题

1、

packagehengsheng;importjava.util.Scanner;public classExe3 {public static voidmain(String[] args) {

Date date= new Date(2015,8,25);

System.out.println(days(date));

}static intdays(Date date){int day = 0;int[][] month = new int[][]{{31,28,30,31,30,31,31,31,30,31,30,31},{31,29,30,31,30,31,31,31,30,31,30,31}};int m =isrunYear(date.getYear());for(int i=0;i

day+=month[m][i];

}

day+=date.getDay();returnday;

}static int isrunYear(intyear) {if (year % 4 == 0 && year % 100 != 0 | year % 400 == 0)return 0;return 1;

}

}classDate {intyear;intmonth;intday;public Date(int year, int month, intday) {super();this.year =year;this.month =month;this.day =day;

}public intgetYear() {returnyear;

}public void setYear(intyear) {this.year =year;

}public intgetMonth() {returnmonth;

}public void setMonth(intmonth) {this.month =month;

}public intgetDay() {returnday;

}public void setDay(intday) {this.day =day;

}

}

2、

packagehengsheng;importjava.util.Scanner;public classExe2 {public static voidmain(String[] args) {

Scanner scanner= newScanner(System.in);int n =scanner.nextInt();while (n != 1) {for (int i = 2; i<=n; i++) {if(isPrime(i)) {//如果i为素数

if (n % i == 0) {//如果n能被i整数

n = n /i;

System.out.print(i+ " ");break;

}

}

}

}

}/*** 判断是否是素数

*

*@paramnum

*@return

*/

static boolean isPrime(intnum) {for (int i = 2; i <= num / 2; i++)if (num % i == 0)return false;return true;

}

}