JAVA 如何获取二维数组中一维数组的个数

Question

如题所述

Answer 1

public static void main(String[] args) {
String str[][] = {{"a","b","c"},{"d","e"},{"f"}};
int num = str.length;
System.out.println("======数组外部长度>>>>" + num);
for (int i = 0; i < str.length; i++) {
int num2 = str[i].length;
System.out.println("======数组内部长度>>>>" + num2);
}
}本回答被提问者采纳