你如何确定字符串数组java的大小？
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How do you determine size of string array java?
提问by randomname
How do i read a file and determine the # of array elements without having to look at the text file itself?
如何读取文件并确定数组元素的数量而不必查看文本文件本身？
String temp = fileScan.toString();
String[] tokens = temp.split("[\n]+");
// numArrayElements = ?
采纳答案by Konstantin Yovkov
Use the lengthproperty of the array:
使用length数组的属性：
int numArrayElements = tokens.length;
回答by tbodt
The proper expression is tokens.length. So, you can assign numArrayElementslike this:
正确的表达是tokens.length。所以，你可以这样分配numArrayElements：
int numArrayElements = tokens.length;
This counts the number of elements in the tokensarray. You can count the number of elements in any array in the same way.
这会计算tokens数组中元素的数量。您可以以相同的方式计算任何数组中的元素数。
