Java继承/覆盖输出问题[duplicate]

Question

在这个程序中，我试图通过使用子类ResziableCircle My code中的重写方法为radious变量赋值

import java.util.*;

public class driver {
    public static void main(String[] args) {
        System.out.println("welcome to out program\\show the circle info ");
        System.out.println("Enter the radious value");
        Scanner input = new Scanner(System.in);
        double radious = input.nextDouble();
        SecondCircle circle = new SecondCircle(radious);
        System.out.println(circle.ToString() + "\n---------------------\n resize the circle\nenter the percent");
        int percent = input.nextInt();
        ResziableCircle redefineCircle = new ResziableCircle(radious);
        redefineCircle.resize(percent);
        System.out.println(redefineCircle.toString() + "\n----------------");
    }
}

//define the interface
public interface GeometricObject {
    public double getPerimeter();

    public double getArea();
}

//define the class that implements the interface
public class SecondCircle implements GeometricObject {
    protected double radious;

    public SecondCircle() {
    }

    public SecondCircle(double radious) {
        this.radious = radious;
    }

    public String ToString() {
        return "Circle [ radious = " + this.radious + " ] ";
    }

    public double getPerimeter() {
        return 2 * 3.14 * this.radious;
    }

    public double getArea() {
        return 3.14 * (Math.pow(this.radious, 2));
    }
}

//define another interface
public interface Resizable {
    public void resize(int percent);
}

//define a class that inherits the secondCircle class and implements the 
//interface  Resizable
public class ResziableCircle extends SecondCircle implements Resizable {
    public ResziableCircle(double radious) {
        super(radious);
    }

    public void resize(int percent) {
        double result = super.radious * (percent / 100);
        super.radious = result;
    }

    public String toString() {
        return "ResziableCircle [ radious = " + super.radious + "]";
    }
}

welcome to out program how the circle info 
Enter the radious value
5
Circle [ radious = 5.0 ] 
---------------------
 resize the circle
enter the percent
5
ResziableCircle [ radious = 0.0]

为什么在调用resize函数后，输出中有radious zero的值？我试图找出代码中的问题在哪里，但找不到。

Answer 1

尝试输入其他数字，如100, 200, 400。

用int除以int，结果为int。

将5除以100，结果为0。