1*f1fbf3c2SXin Li package test3; 2*f1fbf3c2SXin Li 3*f1fbf3c2SXin Li public class StrBuild { test()4*f1fbf3c2SXin Li public int test() { 5*f1fbf3c2SXin Li StringBuilder sb = new StringBuilder("test"); 6*f1fbf3c2SXin Li return sb.charAt(0); 7*f1fbf3c2SXin Li } 8*f1fbf3c2SXin Li } 9