Java从入门到精通06-数组

public static void main(String args[]){
        float arr[]={3,6,7.1f,1.1f,3};
        float all=0;
        for(int i=0;i<arr.length;i++){
            all+=arr[i];
        }
        System.out.println("平均值"+(all/arr.length));
    }

public class Test {
    public static void main(String args[]) throws Exception {
        Dog dogs[] = new Dog[4];
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        for (int i = 0; i < dogs.length; i++) {
            dogs[i] = new Dog();
            System.out.println("请输入狗名:");
            String name = br.readLine();
            dogs[i].setName(name);
            System.out.println("请输入狗的体重:");
            String s_weight=br.readLine();
            float weight=Float.parseFloat(s_weight);
            dogs[i].setWeight(weight);
        }
        float all_weight=0;
        for(int i=0;i<dogs.length;i++){
            all_weight+=dogs[i].getWeight();
        }
        System.out.println("平均体重:"+(all_weight/dogs.length));
        float max_weight=dogs[0].getWeight();
        int maxIndex=0;
        for (int i = 0; i < dogs.length; i++) {
            if (max_weight<dogs[i].getWeight()){
                max_weight=dogs[i].getWeight();
                maxIndex=i;
            }
        }
        System.out.println("体重最大的狗是:"+dogs[maxIndex].getName()+"体重是"+dogs[maxIndex].getWeight());
    }
}

class Dog {
    private String name;
    private float weight;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public float getWeight() {
        return weight;
    }

    public void setWeight(float weight) {
        this.weight = weight;
    }
}