java 获取数组长度

public static void main(String[] args) {        String fruits[]=new String[]{"苹果","葡萄","桃子","哈密瓜","香蕉","
橙","西瓜","火龙果","柿子","荔枝"};    //声明String型数组fruits        int len=fruits.length;              //fruits的元素个数        for (int i=0;i<len ;i++ ){            System.out.print(fruits[i]+"\t");        }        System.out.println("\nfruits数组有"+len+"个元素!");//数组的元素个数    }