题解 | #类型转换#

利用装箱与拆箱的概念来解题

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        double d = scanner.nextDouble();
        System.out.println(Main.typeConversion(d));
    }
    public static int typeConversion(double d) {

        //write your code here......
        Double e = new Double(d);
        int i = e.intValue();
        return i;
    }
}