当我运行 Javac 时，它告诉我，我有一个无法比较的数据类型 char 和 String
while(responseChar == "y")
不确定要更改什么来修复此错误
import java.util.Scanner;
public class UseOrder
{
public static void main(String[] args)
{
int answer, num, q;
String name, response;
double p;
char responseChar;
Scanner keyboard = new Scanner(System.in);
Order order1 = new Order();
order1.setCustomerName();
order1.setCustomerNum();
order1.setQuantity();
order1.setUnitPrice();
order1.computePrice();
order1.displayInfo();
keyboard.nextLine();
System.out.println("Do you need the shipping and handling service?");
System.out.println("Enter y or n :");
response = keyboard.nextLine();
responseChar = response.charAt(0);
while(responseChar == "y")
{
ShippedOrder order2 = new ShippedOrder();
order2.getCustomerName();
order2.getCustomerNum();
order2.getQuantity();
order2.getUnitPrice();
order2.computePrice();
order2.displayInfo();
}
}
}
要定义字符文字，请使用单引号：'。双引号定义字符串文字。
while(responseChar == 'y')
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