余奕廷

1. public class Ch01 {
   
2. 
   
3.         public static void main(String[] args) {
   
4.                 String str1="dog", str2="cat";
   
5.                 int a=3,b=5;
   
6.                 double total=21.3568;
   
7.                 System.out.printf("There are %d %s and %d %Ss totally weigh %.2f pounds",a,str1,b,str2,total);
   
8.         }
   
9. }

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