1、输入班级人数,输入每一个学生成绩,输入总成绩,平均分,最高分,最低分,不及格人数
2、请输入参与抽奖人数,输入抽奖人员姓名,输出中奖者
1、输入班级人数,输入每一个学生成绩,输入总成绩,平均分,最高分,最低分,不及格人数
第一题
import java.util.Arrays;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("请输入班级人数:");
int n = sc.nextInt();
int[] arr = new int[n];
int sum = 0, a = 0;
System.out.println("请继续输入学生成绩:");
for (int i = 0; i < n; i++) {
System.out.println("第" + (i + 1) + "个学生成绩为:");
arr[i] = sc.nextInt();
//总分
sum += arr[i];
//不及格
if (arr[i] < 60) {
a++;
}
}
System.out.println("班级总成绩为:" + sum);
System.out.println("班级平均分为:" + sum * 1.0 / n);
Arrays.sort(arr);
System.out.println("最高分为:" + arr[n-1]);
System.out.println("最低分为:" + arr[0]);
System.out.println("不及格人数:" + a);
}
}
import java.util.Random;
import java.util.Scanner;
public class Test {
public static void main(String[] args) {
System.out.println("请输入抽奖人数:");
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
System.out.println("请继续输入参与抽奖人员姓名:");
String[] arr = new String[n];
for (int i = 0; i < n; i++) {
System.out.println("请输入第" + (i + 1) + "个姓名:");
arr[i] = sc.next();
}
Random r = new Random();
int a = r.nextInt(5);
System.out.println("恭喜:" + arr[a] + "抽到了大奖劳斯莱斯5元代金卷!!!");
}
}