package ss;

public class Use {
  public static Integer  demo( String s ){
    System.err.println(s+\"<<<<<<成功！\");
    Integer ss=1;
    return ss;
  }
}

public class Ceshi {
  public static void main(String[] args) {
    
     try {
        String className = \"ss.Use\";
        Class<?> testClass = Class.forName(className);
        Method saddMethod2 = testClass.getMethod(\"demo\", new Class[]{String.class});
          String result=saddMethod2.invoke(null,new Object[]{\"测试反射\"}).toString();
          System.out.println(result);
      } catch (Exception e) {
        e.printStackTrace();
      }

}