请写出下面程序的运行结果。 class MyString { public String getString(String s) { StringBuilder str = new StringBuilder (); for(int i = 0;i < s.length();i++) { if(i % 2 == 0) { char c = s.charAt(i); str.append(c); } } return new String(str); } } public class StringExercise { public static void main(String[] args) { String s = "ABCDEFGH"; MyString ms = new MyString(); System.out.println(ms.getString(s)); } }