在 java 中的 switch 语句中获取用户输入
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时间：2020-08-13 08:23:45 来源:igfitidea点击:
Taking user input in a switch statement in java
提问by Eqorip
I need help making this switch statement, taking a user input in order to pick (in this case) the month that will be printed. Instead of just always printing august, how would I take a user input and let them choose the month?
我需要帮助制作这个 switch 语句，通过用户输入来选择（在这种情况下）将打印的月份。而不是总是打印八月，我将如何接受用户输入并让他们选择月份？
import java.util.Scanner;
public class SwitchDemo {
public static void main(String[] args) {
int UsrIn;
UsrIn = input.nextInt();
int month = UsrIn;
String monthString;
switch (month) {
case 1: monthString = "January";
break;
case 2: monthString = "February";
break;
case 3: monthString = "March";
break;
case 4: monthString = "April";
break;
case 5: monthString = "May";
break;
case 6: monthString = "June";
break;
case 7: monthString = "July";
break;
case 8: monthString = "August";
break;
case 9: monthString = "September";
break;
case 10: monthString = "October";
break;
case 11: monthString = "November";
break;
case 12: monthString = "December";
break;
default: monthString = "Invalid month";
break;
}
System.out.println(monthString);
}
}
采纳答案by BetaRide
Replace
代替
int month = 8;
with
和
Scanner in = new Scanner(System.in);
System.out.println("Please entter month: ");
String msg = in.nextLine();
int month = Integer.valueOf(msg);
