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Java 数组 length 属性

❮ 数组方法

示例

找出数组有多少个元素

String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
System.out.println(cars.length);

自己尝试 »

定义和用法

The length 属性返回数组的长度。

这是一个内置的 Java 属性，不属于 Java Arrays 类.

注意：length 属性不要与 length() 方法混淆，后者用于字符串。

语法

array.length

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