编译的时候提示 error: incompatible types: char cannot be converted to CharSequence
public class Solution {
String s1="qwertyuiop";
public String[] findWords(String[] words) {
ArrayList<String> list = new ArrayList<String>();
for(int i=0;i<words.length;i++)
{
if(IsHave(words[i]) )
list.add(words[i]);
}
return list.toArray(new String[list.size()]);
}
public boolean IsHave(String s)
{
for(int j=0;j<s.length();j++)
{
String ch= s.charAt(j);
if(s1.contains(s.charAt(j)))// 报错的地方
return false;
}
return true;
}
}