**5.32(游戏:彩票)修改程序清单3-8,产生一个两位数的彩票。这两位数是不同的。(提示:产生第一个数,使用循环不断产生第二个数,直到它和第一个数不同为止。) **5.32(Game: lottery) Revise Listing 3.8, Lottery.java, to generate a lottery of a two-digit number. The two digits in the number are distinct. (Hint: Generate the first digit. Use a loop to continuously generate the second digit until it is different from the first digit.)
参考代码:
package chapter05;import java.util.Scanner;publicclassCode_32{
publicstaticvoidmain(String[] args){
int lottery =(int)(Math.random()*100);while(lottery /10== lottery %10)lottery =(int)(Math.random()*100);Scanner input =newScanner(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");elseif(guessDigit2 == lotteryDigit1 && guessDigit1 == lotteryDigit2)System.out.println("Match all digits: you win $3,000");elseif(guessDigit1 == lotteryDigit1 || guessDigit1 == lotteryDigit2 || guessDigit2 == lotteryDigit1|| guessDigit2 == lotteryDigit2)System.out.println("Match one digit: you win $1,000");elseSystem.out.println("Sorry, no match");}}
结果显示:
Enter your lottery pick (two digits):34
The lottery number is 19
Sorry, no matchProcess finished with exit code 0