英文:
The method is readDouble is undefined for the type
问题
import java.util.Scanner;
public class Pizza {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("你想要的比萨直径是多少？");
double pizzadiameter = readDouble("输入比萨直径：");
System.out.println("比萨的直径将是 " + pizzadiameter + "。");
}
}
英文:
import java.util.Scanner;
public class Pizza {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("what is the diameter of the pizza that you want?");
double pizzadiameter = readDouble("Enter pizza diameter: ");
System.out.println("The diameter of the pizza will be " + pizzadiameter + ".");
}
}
My problem is that double pizzadiameter = readDouble("Enter pizza diameter: "); (line 6) is giving me an error saying the method is undefined.
答案1
得分: 0
你需要使用 input.nextDouble 来获取输入：
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("你想要的比萨直径是多少？");
double pizzadiameter = input.nextDouble();
System.out.println("比萨的直径将会是 " + pizzadiameter + "。");
}
英文:
you need to get the input using input.nextDouble
public static void main (String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("what is the diameter of the pizza that you want?");
double pizzadiameter = input.nextDouble();
System.out.println("The diameter of the pizza will be " + pizzadiameter + ".");
}
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