问题描述
我想通过忽略字母的大小写来检查两组字符串的所有元素是否相等.
I want to check if all elements of two sets of String are equal by ignoring the letter's cases.
Set<String> set1 ; Set<String> set2 ; . . . if(set1.equals(set2)){ //all elements of set1 are equal to set2 //dosomething } else{ //do something else }
但是,这种相等性检查不会忽略字符串的大小写.还有其他方法吗?
However, this equality check doesn't ignore the cases of the string. Is there some other way of doing that?
推荐答案
你也可以使用TreeSet.
public static void main(String[] args){ Set<String> s1 = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER); s1.addAll(Arrays.asList(new String[] {"a", "b", "c"})); Set<String> s2 = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER); s2.addAll(Arrays.asList(new String[] {"A", "B", "C"})); System.out.println(s1.equals(s2)); }