24 ==比较的是地址在.equals比较的是内容

public class Demo1 {
    public static void main(String[] args) {
        byte[] arr = {97,98,99};
        String s1 = new String(arr);
        String s2 =new String(arr);
        System.out.println(s1==s2);
        System.out.println(s1.equals(s2));
    }
}