public class Friends                                                                      // 定義public 類Friends
{
   public static void main(String args[])                                  // main()方法，主程序開始
   {
      int number;                                                                               // 聲明整型變量number
      number =3;                                                                               // 將number賦值為3
      System.out.println("I have "+ number +" Friends ");      // 輸出字符串及變量內容
      System.out.println("You have "+( number+1)+" Friends ");
   }
}