【Java】StringUtils.isEmpty、isBlank、String.isempty的区别以及length()和length的区别
length()是求String字符串对象中字符的个数;length是求字符串数组中有多少个字符串;publicclassstrLen{publicstaticvoidmain(String[]args){Stringstr1="abcdefg";String[]str2={"melon","apple","pear","banana"};ints1,s2;s1=str1.length();s2=