System.out.println("Do you want to continue ? (yes/no) ?");
String playAgain = scanner.nextLine();
switch (playAgain) {
case "yes":
System.out.println("let's continue");
break;
case "no":
System.out.println("Bye");
System.exit();
default:
System.out.println("Please enter a right instruction");
// You will need some control loop to make it work...
}
That is not the way the break keyword works. It ends the switch statement, not the program.
In your code, if the option is yes, both yes and no codes will be executed because there is no break before the no.
You probably want something like that:
System.out.println("Do you want to continue ? (yes/no) ?");
String playAgain = scanner.nextLine();
switch (playAgain) {
case "yes":
System.out.println("let's continue");
break;
case "no":
System.out.println("Bye");
System.exit();
default:
System.out.println("Please enter a right instruction");
// You will need some control loop to make it work...
}
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评论（1）
这不是
break关键字工作的方式。它结束switch语句，而不是程序。在您的代码中，如果该选项为
是，则是和否代码将被执行，因为没有break> break否之前。您可能想要这样的东西：
That is not the way the
breakkeyword works. It ends theswitchstatement, not the program.In your code, if the option is
yes, bothyesandnocodes will be executed because there is nobreakbefore theno.You probably want something like that: