java测字节长度关键字

Question

如题所述

Answer 1

public static void main(String[] args) {
String s = "123";
System.out.println(s.getBytes().length);
s = "abc";
System.out.println(s.getBytes().length);
s = "一二三";
System.out.println(s.getBytes().length);
s = "一2c";
System.out.println(s.getBytes().length);
}

Answer 2

getStringByteLength(); 好像是这个！你自己看看呗

Answer 3

getBytes().length;