Java作业五（2017-10-15）

 /*3-6.程序员;龚猛*/
　1 package zhenshu;
 import java.util.Scanner;
 public class text {

     public static void main(String[] args) {
     Scanner input = new Scanner(System.in);

     System.out.print("Enter an integer：");
     int number = input.nextInt();

     if (number % 2 == 0 && number % 3 == 0)
         System.out.println(number + "is divisible by 2 and 3.");

     if (number % 2 == 0 || number % 3 == 0)
         System.out.println(number + "is divisible by 2 and 3.");

     if (number % 2 == 0 ^ number % 3 == 0)
         System.out.println(number + "is divisible by 2 and 3. but not both.");

     }

 }

 /*3-7*/
 package zhenshu;
 import java.util.Scanner;
 public class Year {

     public static void main(String[] args) {
         Scanner input = new Scanner(System.in);
         System.out.print("Enter a year:");
         int year = input.nextInt();

         boolean isLeapYear =
                 (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);

         System.out.println(year + "is a leap year?" + isLeapYear);
     }

 }

 /*3-8*/
 package zhenshu;
 import java.util.Scanner;
 public class lottery {

     public static void main(String[] args) {
         int lottery = (int)(Math.random() * 100);

         Scanner input = new Scanner(System.in);
         System.out.print("Enter your lottery pick (two digits):");
         int guess = input.nextInt();

         int lotteryDigit1 = lottery / 10;
         int lotteryDigit2 = lottery % 10;

         int guessDigit1 = guess / 10;
         int guessDigit2 = guess % 10;

         System.out.println("The lottery number is" + lottery);

         if(guess == lottery)
             System.out.println("Exact match: you win $10,000");

         else  if(guessDigit2 == lotteryDigit1 && guessDigit2 == lotteryDigit2 )
             System.out.println("Match all digits: you win $3,000");
         else  if(guessDigit1 == lotteryDigit1 || guessDigit1 == lotteryDigit2
                 ||guessDigit2 == lotteryDigit1 || guessDigit2 == lotteryDigit2)
             System.out.println("Match all digits: you win $1,000");
         else
             System.out.println("Sorry,no match");

     }

 }

 /*3-9*/
 package zhenshu;

 import java.util.Scanner;

 public class ChinaYear {

     public static void main(String[] args) {
     Scanner input = new Scanner(System.in);

         System.out.print("Enter a year:");
         int year = input.nextInt();

         switch (year % 12){
         case 0: System.out.println("monkey"); break;
         case 1: System.out.println("rooster"); break;
         case 2: System.out.println("dog"); break;
         case 3: System.out.println("pig"); break;
         case 4: System.out.println("rat"); break;
         case 5: System.out.println("ox"); break;
         case 6: System.out.println("tiger"); break;
         case 7: System.out.println("rabbit"); break;
         case 8: System.out.println("dragon"); break;
         case 9: System.out.println("snake"); break;
         case 10: System.out.println("horse"); break;
         case 11: System.out.println("sheep"); break;
         }
     }

 }