java中length与length()
length是对数组而言的，指的是数组的长度。
length()是对字符串而言的，指的是字符串所包含的字符个数。
public class LengthDemo {
public static void main(String args[]) {
String str = "Today is Monday";
System.out.println(str.length());
String[] str2 = {"abc","good","alas","ok"};
System.out.println(str2.length);
int[] a = new int[5];
System.out.println(a.length);
}
}
结果：
15
4
5