- 统计一组学生成绩,比如让你统计十个学生的总成绩,平均成绩,最高分和最低分。
编写代码
public class Example003 {
public static void main(String[] args) {
double[] score = new double[10];
double sum, average, max, min;
Scanner sc = new Scanner(System.in);
for (int i = 0;i < score.length;i++) {
System.out.print("score["+ i + "] = ");
score[i] = sc.nextDouble();
}
sum = 0;
for (int i = 0;i < score.length;i++) {
sum = sum + score[i];
}
average = sum / score.length;
max = Double.MIN_VALUE;
for (int i = 0; i < score.length;i++) {
if (score[i] > max) {
max = score[i];
}
}
min = Double.MAX_VALUE;
for (int i = 0; i < score.length;i++) {
if (score[i] < min) {
min = score[i];
}
}
System.out.println("sum=" + sum);
System.out.println("average=" + average);
System.out.println("max=" + max);
System.out.println("min=" + min);
}
}
运行程序,查看结果
