025-for(数据类型 变量名称：数组名称 )

[梵高摔电脑]

public class AverageScore{

    public static void main(String[] args){

        int sum = 0;

        int [] scores = {61,57,95,85,75,65,44,66,90,32};

        for(int score:scores){

            

            sum = sum+score;

        }    

        int averagescore;

        averagescore = sum/10;

        System.out.println(averagescore);

    }

}

 

/////////////////////////////////////////

第二种方法：数组名称.length

参考答案

 

public class AverageScore {
    public static void main(String[] args) {
        int[] data = {61, 57, 95, 85, 75, 65, 44, 66, 90, 32};
        int sum = 0;
        for (int i = 0; i < data.length; i++) {
            sum += data[i];
        }
        System.out.println("平均成绩：" + sum / data.length);
    }
}

[梵高摔电脑]

import java.util.Scanner;

public class InputTest {
public static void main(String[] args) {
String[] data = new String[100];
Scanner in = new Scanner(System.in);
for (int i = 0; i < 100; i++) {
if ((data[i] = in.nextLine()).equals("end")) {
break;
}
}
for (String a : data) {
if (a.equals("end")) {
break;
}
System.out.println(a);
}
}
}