如何使用Scanner解析doubles

Scanner scanner = new Scanner(System.in);

double number = scanner.nextDouble();

if (scanner.hasNextDouble()) {
    double number = scanner.nextDouble();
    // 处理读取到的double值
} else {
    // 输入流中没有double值，进行错误处理
}

import java.util.Scanner;

public class DoubleParser {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("请输入一个double值：");
        if (scanner.hasNextDouble()) {
            double number = scanner.nextDouble();
            System.out.println("输入的double值为：" + number);
        } else {
            System.out.println("输入的不是double值！");
        }

        scanner.close();
    }
}