在下列代码中,有()处实现了拆箱。 int score=5; object o= score; o=10; score =(int)o; object oScore = score;A.0B.1C.2D.3

在下列代码中,有()处实现了拆箱。 int score=5; object o= score; o=10; score =(int)o; object oScore = score;

A.0

B.1

C.2

D.3


参考答案和解析
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请编写一个函数fun(int score [][3],int num),该函数返回有一门成绩以上课程成绩在85分以上,其余课程成绩不低于70分的人数。数组score按行存放num名考生各自的三门期末考试成绩。注意:部分源程序已存在文件test31_2.cpp中。请勿修改主函数main和其他函数中的任何内容,仅在函数fun的花括号中填写若干语句。程序输出结果如下:3文件test31_2.cpp清单如下:include <iostream.h>int fun(int score[] [3],int num){}void main ( ){int score[4] [3]={{70,89,92},{70,76,93},(80,86,98},{65,73,45});cout<<fun(score,4)<<end1;}

下列数组的初始化正确的是_________。 A.int[]score=newint[5]{1,2,3,4,5};B.int[5]score=newint[]{1,2,3,4,5};C.intscore={1,2,3,4,5};D.int[]score=newint[5];

Given:Which method will complete this class?() A.public int compareTo(Object o){/*more code here*/}B.public int compareTo(Score other){/*more code here*/}C.public int compare(Score s1,Score s2){/*more code here*/}D.public int compare(Object o1,Object o2){/*more code here*/}

有以下程序 include include typedef struct { cha 有以下程序 #include <stdio.h> #include <string.h> typedef struct { char name[9]; char sex; float score[2]; } STU; STU f(STU a) { STU b={"Zhao", 'm', 85.0, 90.0}; int i; strcpy(a.name, b.name); a.sex = b.sex; for (i=0; i<2; i++) a.score[i] = b.score[i]; return a; } main() { STU c={"Qian", T, 95.0, 92.0}, d; d=f(c); printf("%s,%c,%2.0f,%2.0f\n", d.name, sex, score[O], d.score[1]); } 程序的运行结果是A.Qian, f,95,92B.Qian,m,85,90C.Zhao,m,85,90D.Zhao,f,95,92

有以下程序struct STU{ char name[10]; int num; int Score;};main(){ struct STU s[5]={{"YangSan",20041,703}, {"LiSiGuo",20042,580}, {"WangYin",20043,680}, {"SunDan",20044,550}, {"Penghua",20045,537}}, *p[5], *t; int i,j; for(i=0;i5;i++) p[i]=s[i]; for(i=0;i4;i++) for(j=i+1;j5;j++) if(p[i]-Scorep[j]-Score) { t=p[i]; p[i]=p[j]; p[j]=t; } printf("%d %d\n",s[1].Score,p[1]-Score);}程序运行后的输出结果是A.550 550 B.580 550 C.680 680 D.580 680

有以下程序: #includestdio.h #includestring.h typedef struct{char name[9];char sex;int score[2];}STU; STU f(STU a) { STU b={"Zha0","m",85,90}; int i; strcpy(a.name,b.name); sex=b.sex; for(i=o;i2;i++)a.score[i]=b.score[i]; return a; } main( ) { STU c={"Qian",f,95,92),d; d=f(c); printf("%S,%C,%d,%d,",d.name,d.sex,d.score[0],d.score[l]); printf("%s,%c,%d,%d\n",C.name,C.sex,c.score[0],C.score[1]); } 程序运行后的输出结果是( )。A.Zhao,m,85,90,Qian,f,95,92B.Zhao,m,85,90,Zhao,m,85m90C.Qian,f,95,92,Qian,f,95,92D.Qian,f,95,92,zhan,m,85,90

有以下程序: struct STU { char name[10]; int num; int score; }; main() { struct STU s[5]={{"YangSan",20041,703},{"LiSiGuo",20042,580}, {"WangYin",20043,680},{"SunDan",20044,550), {'Penghua",20045,537}},*p[5],*t; int i,j; for(i=0;i<5;i++) p[i]=s[i]; for(i=0;i<4;i++) for(j=i+1;j<5;j++) if(p[i]->Score>p[j]->Score) { t=p[i];p[i]=p[j];p[i]=t; } printf("%d %d\n",s[1].Score,p[1]->Score); } 执行后输出结果是( )。A.550 550B.680 680C.580 550D.580 680

有以下程序: #includestdio.h struct STU{char name[9];char sex;int score[2];}; void f(struct STU a[]) { struct STU b={"Zhao",m,85,90); a[1]=b; } main( ) { struct STU c[2]={{"Qian",f,95,92},{"Sun",m 98,99}}; f(c); printf(”%s,%c,%d,%d,¨,c[o].name,c[o].sex,c[o].score[o],c[o].score[1]); printf("%s,%c,%d,%d\n",c[1].name,c[1].sex,c[1].score[o],c[1].score [1]); } 程序运行后的输出结果是( )。A.Zhao,m,85,90,Sun,m,98,99B.Zhao,m,85,90,Qian,f,95,92C.Qian,f,95,92,Sun,m,98,99D.Qian,f,95,92,Zhao,m,85,90

m个人的成绩存放在score数组中,请编写函数fun(),它的功能是将高于平均分的人数作为函数值返回,将高于平均分的分数放在叩所指的数组中。例如,当score数组中的数据为24,35,88,76,90,54, 59,66,96时,函数返回的人数应该是5,up中的数据应为88, 76, 90, 66, 96。注意:部分源程序给出如下。请勿改动主函数main和其他函数中的任何内容,仅在函数fun的花括号中填入所编写的若干语句。试题程序:include <conio.h>include <stdio.h>include <string.h>int fun(int score[],int m,int up[]){}main(){int i,n,up[9];int score[9]={24,35,88,76,90,54,59,66,96};clrscr();n=fun(score,9,up);printf("\nup to the average score are:");for(i=0;i<n;i++)printf("%d",up[i]);}

有以下程序#includestdio.h#includesiring.htypedef struct{char name[9];char sex;int score [2];}STU;STU f(STU a){ STU b={"Zhao",'m',85,90);int i;strcpy(a.name,b.name);a.sex=b.sex:for(i=0;i2;i++) a.score [i]=b.score[i];return a;}main()STU c={"Qian",'f',95,92},d;d=f(c):printf("%s,%c,%d,%d,",d.name,d.sex,d.score[0],d.score[1]);prinff("%s,%c,%d,%d\n",c.name,c.sex,c.score[0],c.score[1]);}程序运行后的输出结果是A.Zhao,m,85,90,Qian,f,95,92B.Zhao,m,85,90,Zhao,m,85,90C.Qian,f,95,92,Qian,f,95,92D.Qian,f,95,92,Zhao,m,85,90

在学生成绩表SM中,查找成绩>=90(其中“SCORE”为字段名)的学生名单的SQL-SELECT语句中,应加上______选项。A.FOR SCORE>=90B.WHILE SCORE>=90C.WHERE SCORE>=90D.ORDER SCORE>=90

有以下程序:include struct STU{char name[10]; int num; int Score;};main(){struct 有以下程序: #include <stdio.h> struct STU { char name[10]; int num; int Score; }; main() { struct STU s[5]={{"YangSan",20041,703},{"LiSiGuo",20042,580}, {"WangYin",20043,680},{"SunDan",20044,550}, {"Penghua",20045,537}}, *p[5],*t; int i,j; for(i=0;i<5;i++) p[i]=s[i]; for(i=0;i<4;i++) for(j=i+1;j<5;j++) if(p[i]->Score>p[j]->Score) { t=p[i];p[i]=p[j];p[j]=t;} printf("%d%d\n",s[1].Score,p[1]->Score); } 执行后的输出结果是( )。A.550 550B.680 680C.580 550D.580 680

本题统计score[]={37,89,63,60,59,78,91)中成绩不及格的人数。public class javal{public static void main(String[]args){int score[]={37,89,63,60,59,78,91),int sum=0:int i=0;while(i<score.length){if(score[i]>=60){;;};i++;}System.OUt.println("below 60 sum:"+sum);}}

有以下程序 struct STU { char name[10]; int num; int Score; { main() { struct Stu s[5]={{"YangSan",20041,703},{"LiSiGuo",20042,580}, {"WangYin",20043,680},{"SunDan",20044,550}, {"Penghua",20045;537}},*p[5],*t; int i,j; for(i=0;i<5;i++)p[i]=s[i]; for(i=0;i<4;i++) for(j=i+1;j<5;j++) if(p[i]->Score>p[j]->Score) {t=p[i];p[i]=p[j];p[i]=t;} printf("%d%d\n",s[1].Score,p[1]->Score); } 执行后输出结果是A.550550B.680680C.580550D.580680

下列程序段的执行结果为 a=75 If a > 60 Then Score=1 If a > 70 Then Score=2 If a > 80 Then Score=3 If a > 90 Then Score=4 Print "Score= ";ScoreA.Score=1B.Score=2C.Score=3D.Score=4

有关系模式S(Sno,Sname,Age,Dept);C(Cno,Cname,Teacher);SC(Sno,Cno,Score)。下列查询结果相同的是()。A.πSname((S)σScore>60(SC))B.πSname(σScore>60(SSC))C.σScore>60(πSname(SSC))D.σScore>60(πSname(S)(SC))

在ORM查询中,对于分数模型Score,包含math_score,english_score,chinese_score,username四个字段,如果以math_score优先,english_score为次优先进行排序?()A、Score.objects.all().order_by(’math_score’).order_by(’english_score’)B、Score.objects.all().order_by(’english_score’).order_by(’math_score’)C、Score.objects.all().order_by(’english_score’,’math_score’)D、Score.objects.all().order_by(’math_score’,’english_score’)

有声明union perdata{ int class;char ofice[10];int score;} ;该共用体占据字节数为()A、10B、12C、14D、15

成绩表grade中字段score代表分数,以下()语句返回成绩表中的最低分。(选择两项)A、select max(score) from gradeB、select top 1 score from grade order by score ascC、Select min(score) from gradeD、select top 1 score from grade order by score desc

学生成绩表grade中有字段score(float),现在要把所有在55分至60之间的分数提高5分,以下sql语句正确的是()A、Update grade set score=score+5B、Update grade set score=score+5 where score=55 or score =60C、Update grade set score=score+5 where score between 55 and 60D、Update grade set score=score+5 where score =55 and score =60

若要将“s_c_info”表中所有学生的成绩“score”加5分,则正确的SQL语句是()A、UPDATE s_c_info SET score=5B、UPDATE s_c_infoSET score=score+5C、UPDATE FROM s_c_info SET score=5D、UPDATE FROM s_c_info SET score=score+5

成绩表grade中字段st_id代表学号,score代表分数,以下()语句返回成绩表中的最低分。A、SELECT max(score) FROM gradeB、SELECT TOP 1 score FROM grade ORDERBY score ASCC、SELECT st_id,MIN(score) FROM gradeD、SELECT TOP 1 score FROM grade ORDERBY score DESC

单选题有声明union perdata{ int class;char ofice[10];int score;} ;该共用体占据字节数为()A10B12C14D15

单选题学生成绩表grade中有字段score(float),现在要把所有在55至60分之间的分数提高5分,以下SQL语句正确的是()。AUpdate grade set score=score+5 where score in 55..60BUpdate grade set score=score+5 where score =55 AND score =60CUpdate grade set score=score+5 where score between 55 or 60DUpdate grade set score=score+5 where score =55 and score =60

多选题成绩表grade中字段score代表分数,以下()语句返回成绩表中的最低分。Aselect max(score) from gradeBselect top 1 score from grade order by score ascCSelect min(score) from gradeDselect top 1 score from grade order by score desc

多选题成绩表grade中字段score代表分数,以下()语句返回成绩表中的最低分。Aselect max(score)from gradeBselect top1score from grade order by score ascCSelect min(score)fromgradeDselect top1score from grade order by score desc

单选题有以下程序:#include #include typedef struct stu{ char name[10]; char gender; int score;}STU;void f(char *name,char gender,int score){ strcpy(name,Qian); gender='f'; score=350;}main(){ STU a={Zhao,'m',290},b; b=a; f(b.name,b.gender,b.score); printf(%s,%c,%d,, a.name, a.gender, a.score); printf(%s,%c,%d, b.name, b.gender, b.score);}程序的运行结果是(  )。AZhao,m,290,Qian,m,290BZhao,m,290,Zhao,m,290CZhao,m,290,Qian,m,350DZhao,m,290,Qian,f,350

单选题public class Score implements Comparable {  private int wins, losses;  public Score(int w, int 1) { wins = w; losses = 1; }  public int getWins() { return wins; }  public int getLosses() { return losses; }  public String toString() {  return “”; }  // insert code here  }  Which method will complete this class?()A public int compareTo(Object o) {/*mode code here*/}B public int compareTo(Score other) {/*more code here*/}C public int compare(Score s1,Score s2){/*more code here*/}D public int compare(Object o1,Object o2){/*more code here*/}