java - 如何直接从数组列表中删除一个字符

Question

这段代码表示

Note: Hello.java uses or overrides a deprecated API.

Note: Recompile with -Xlint:deprecation for details.

    import java.util.*;
    public class Hello {

    public static void main(String[] args) {
        

        String s="hello";
        ArrayList<Character> al=new ArrayList<Character>();
        for(int i=0;i<s.length() ;i++)
        {
            al.add(s.charAt(i));
            
        }
        Character ch=new Character('h');
       al.remove(ch);
        System.out.print(al);
        
    }
}

Answer 1

除了 Character ch=new Character('h') 之外的所有内容在您的代码中都很好。

替换

Character ch=new Character('h');

与

Character ch = Character.valueOf('h');