我想在while循环中执行一个切换,在每个switch语句的break处,while循环停止,并要求输入像F,R,C,Q.下面的语句工作,但是语句不会中断.请帮忙
public static void main(String[] args) throws IOException {
// start both with 1 point
int goodTotal = 50;
int monTotal = 50;
// input switch statement
while (goodTotal > 0 && monTotal > 0) {
System.out.print("Type a letter: ");
System.out.println("\n");
System.out.print("F: Go out and Fight ");
System.out.println("\n");
System.out.print("R: Rest ");
System.out.println("\n");
System.out.print("C: Check Stats ");
System.out.println("\n");
System.out.print("Q: Quit ");
int input = System.in.read();
System.out.println("You typed: " + (char) input);
switch (input) {
case 'f':
System.out.println("Continue the game");
break;
case 'r':
System.out.println("Players should rest");
break;
case 'c':
System.out.println("Checking the status of the game");
System.out.print("Goodman has " + goodTotal + " points and Monster has " + monTotal + " points");
System.out.println("\n");
break;
case 'q':
System.out.println("Game over");
System.exit(input);
break;
default:
System.out.println("Invalid selection");
break;
}
// Set value of minimum and maximum damage
int minDmg = 2;
int maxDmg = 15;
// Get random number;
int damage = minDmg + Double.valueOf(Math.random() * (maxDmg - minDmg)).intValue();
int damage2 = minDmg + Double.valueOf(Math.random() * (maxDmg - minDmg)).intValue();
// remove value of damage from started value to get total value remaining
goodTotal = goodTotal - damage;
monTotal = monTotal - damage2;
// print message if still in the game
if (goodTotal > 0) {
System.out.println("Goodman has " + goodTotal + " points left. Not bad,Man! ");
}
// if Goodman survives round 2 print a message of encouragement
if (goodTotal > 0 && count > 1 && count <= 2) {
System.out.print("This is encouraging. Goodman has lasted past roundhh " + count + ". ");
// print new message if Goodman passes round 3
} else if (goodTotal > 0 && count == 3) {
System.out.print("Goodman is as strong as Samson. He has lasted round " + count
+ " and still looks strong.");
System.out.print(" 10 hit points has been added to your total");
}
if (monTotal > 0) {
System.out.println("Wait,Monster has a total of " + monTotal + " points and is still in the game");
}
// exit if have less than 0 point,and print game over. Congratulate the winner
if (goodTotal < 0) {
System.out.println("Goodman you are out of the game");
System.out.println("The monster will take over the village. This is sad");
System.out.println("Game Over!");
} else if (monTotal < 0) {
System.out.println("Goodman has been victorIoUs");
System.out.println("The monster is dead. The people live!!!!");
System.out.println("Game Over!");
}
System.out.println("This is the end of round " + count + " ");
System.out.println("\n");
count = count + 1;
}
}
解决方法
在循环上使用标签：
loop: while (goodTotal > 0 && monTotal > 0) {
// ...
switch (input) {
case 'f':
// ...
break loop;
case 'r':
// ...
break loop;
// ...
}
// ...
}
