我想根据用户输入重启我的游戏。
例如，如果我打印＆＃34; 您是否想再次播放，请键入（5）表示“是”或（10）表示“否”＆＃34;。我尝试添加do while循环，但我不知道该怎么做。任何帮助重启程序的代码都将非常感谢！
import java.util.Scanner;
public class Sticks3 {
public static void main(String[] args) throws java.lang.Exception {
BufferedReader br = new BufferedReader(
new InputStreamReader(System.in));
int numSticks = 21;
System.out.println("Would You Like to go first? (Yes/No)");
Scanner input = new Scanner(System.in);
String goFirst = input.nextLine();
Scanner take = new Scanner (System.in);
int numToTake = 0;
int score = 0;
while (numSticks > 0) {
if (goFirst.equals("Yes") || goFirst.equals("yes")) {
System.out.println("There are " + numSticks + " sticks ");
System.out.println("How many sticks do you want to take (1 or 2)");
numToTake = take.nextInt();
if (numToTake > 2) {
numToTake = 2;
}
else if (numToTake < 1) {
numToTake = 1;
}
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println("You lose");
System.out.println("Your score is " + score );
}
else {
if((numSticks - 2) % 3 == 0 || numSticks - 2 == 0) {
numToTake = 1;
}
else {
numToTake = 2;
}
System.out.println("Computer takes " + numToTake + " sticks " );
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println(" You win ");
score++;
System.out.println("Your score is " + score );
}
}
}
else {
if((numSticks - 2) % 3 == 0 || numSticks - 2 == 0) {
numToTake = 1;
}
else {
numToTake = 2;
}
System.out.println("Computer takes" + numToTake + " sticks " );
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println("You win");
score++;
System.out.println("Your score is " + score );
}
else {
System.out.println("There are " + numSticks + " sticks ");
System.out.println("How many sticks do you want to take (1 or 2)");
numToTake = take.nextInt();
if (numToTake > 2) {
numToTake = 2;
}
else if (numToTake < 1){
numToTake = 1;
}
numSticks = numSticks - numToTake;
if(numSticks <= 0){
System.out.println("You win");
score++;
System.out.println("Your score is " + score );
}
}
}
}
}
}
答案 0 :(得分：2)
最干净的方法是将所有代码放在main函数中。然后在循环中调用该函数。像这样：
Scanner scanner = new Scanner(System.in);
while (true) {
runGame(scanner);
// Game has finished
System.out.println("Do you want to play again, type (5) for yes or (10) for no");
if (scanner.nextLine().equals("10")) {
break;
}
}
扫描仪传递给该功能，因为那里可以使用相同的扫描仪。您的计划and it should be avoided没有理由拥有多台扫描仪。
答案 1 :(得分：0)
围绕它构建一段时间（或者做，甚至是更好的选择）。询问是否应该再次播放，如果是，则while的条件保持为真，否则更改它。当然你必须初始化numSticks，numToTake并再次得分为0。
package test;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Scanner;
public class Sticks3 {
public static void main(String[] args) throws java.lang.Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int numSticks = 21;
System.out.println("Would You Like to go first? (Yes/No)");
Scanner input = new Scanner(System.in);
String goFirst = input.nextLine();
Scanner take = new Scanner(System.in);
int numToTake = 0;
int score = 0;
boolean playAgain = true;
Scanner askPlayAgainScanner = new Scanner (System.in);
while (playAgain == true) {
numSticks = 21;
numToTake = 0;
score = 0;
while (numSticks > 0) {
if (goFirst.equals("Yes") || goFirst.equals("yes")) {
System.out.println("There are " + numSticks + " sticks ");
System.out.println("How many sticks do you want to take (1 or 2)");
numToTake = take.nextInt();
if (numToTake > 2) {
numToTake = 2;
}
else if (numToTake < 1) {
numToTake = 1;
}
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println("You lose");
System.out.println("Your score is " + score);
} else {
if ((numSticks - 2) % 3 == 0 || numSticks - 2 == 0) {
numToTake = 1;
} else {
numToTake = 2;
}
System.out.println("Computer takes " + numToTake + " sticks ");
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println(" You win ");
score++;
System.out.println("Your score is " + score);
}
}
} else {
if ((numSticks - 2) % 3 == 0 || numSticks - 2 == 0) {
numToTake = 1;
} else {
numToTake = 2;
}
System.out.println("Computer takes" + numToTake + " sticks ");
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println("You win");
score++;
System.out.println("Your score is " + score);
} else {
System.out.println("There are " + numSticks + " sticks ");
System.out.println("How many sticks do you want to take (1 or 2)");
numToTake = take.nextInt();
if (numToTake > 2) {
numToTake = 2;
} else if (numToTake < 1) {
numToTake = 1;
}
numSticks = numSticks - numToTake;
if (numSticks <= 0) {
System.out.println("You win");
score++;
System.out.println("Your score is " + score);
}
}
}
}
System.out.print("Do you want to play again? true for yes, false for no: ");
boolean askPlayAgain = askPlayAgainScanner.nextBoolean();
}
}
}