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华南农业大学期末考试参考答案(A卷)
2012-2013学年第 1 学期 考试科目: Java程序设计 考试类型:(闭卷)考试 考试时间: 120 分钟
一、单项选择题(本大题共 18 小题,每小题 2 分,共 36 分)
1 2 3 4 5 6 7 8 9 B D C B D C D A A 10 11 12 13 14 15 16 17 18 B C D C B C A B A
二、判断题(本大题共14小题,每小题1分,共14分,正确选A,错误选B)19 20 21 22 23 24 25 B A A B A B A 26 27 28 29 30 31 32 B A B B A B A
三、程序阅读题(本大题共4小题,每小题5分,共20分) 评分细则:1-2题错误没有分,3-4题每答错一行扣一分
1. m=89,n=5 2. 4 3.
Person()
Teacher(String) Teacher() Faculty() 4.
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1
四、编写程序题(本大题共3小题,共30分)
1. (9分)
public class Test { +1 public static void main(String[] args) { +1 int s = 0;
for(int i=2;i<=10;i++){ if(isPrime(i)) s+=i;
} +3 System.out.println(\~200间所有素数之和为:\ +1 }
static boolean isPrime(int a){ boolean b = true; for(int i=2;i if(a%i == 0){b = false; break;} return b; } +3 } 2. (10分) public class Test { +1 public static void main(String[] args) { int[][] a = {{259,132,799,113},{332,262,209,863},{227,301,684,343}}; +1 int max = 0,r=0,c=0; +1 for(int i=0;i<3;i++) for(int j=0;j<4;j++){ int t = dsum(a[i][j]); if(max } +3 System.out.printf(\数字和最大的数是:%d,位于数表的第%d行第%d列\\n\ } +1 static int dsum(int m){ int s = 0; while(m!=0){s+=m; m=m/10; } return s; } +3 } 2 3. (11分) class Employee { +0.5 private int id; private String name; private double salary; +1.5 装订线 Employee(){ id = 0; name = \ salary = 0.0; } Employee(int id,String name,double salary){ this.id = id; this.name = name; this.salary = salary; } public double getId(){return id;} public String getName(){return name;} public double getSalary(){return salary;} public void setId(int id){this.id = id;} public void setName(String name){this.name = name;} public void setSalary(double salary){this.salary = salary;} public String toString(){ return \工号:\姓名:\工资:\ public int level(){ int l; if(salary<5000.0) l = 3; else if(salary>=5000.0 && salary<8000.0) l = 2; else l = 1; return l; } } 3 +1 +1 +1.5 +1.5 +1 +3
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