//這個 TestZoo.java 是要 demo Class.forname(String) 的妙用
//@CopyLeft by tsaiwn@csie.nctu.edu.tw
public class TestZoo {
    static String s1="Dog", s2="Cat", s3="People", s4="Dog";
    public static void main(String x[]) throws Exception
    {  
       for(int i=1; i<= 4; i++){
          String s = s3;  // assume default is people
          if(i==1) s=s1; else if(i==2) s=s2; else if(i==3)s=s4;
          try{
             Object o=Class.forName(s).newInstance();
             System.out.println("shows up.");
          }catch(Exception e) { System.out.println("GOGO");
          }
       }System.out.println();
    }
} // class TestZoo
class Dog{
   Dog(){ System.out.print("汪汪旺 ");}
}
class Cat{ Cat(){ System.out.print("Miao ");} }
//Don't take life too seriously -- you'll never get out if it alive.