java - 尺寸比较（周长/平方周长）等

问题描述

3 不同classes的 1 用于处理Circle实例，1 用于Square实例，第 3 用于comparrisons它们之间（main）。在main函数中，我找到circle(between c1..c4) 和square(between s1...s5) 并打印biggest circumference and area of them respectively. [so circle-circle and square-square comparison]

！！！！注意：只有具有较大半径或边的那些具有最大的周长或面积，所以我只使用r和如果我使用/a是否可以返回（不，因为那我只会处理数字?).请纠正我。thisareacircumference

现在我想geometric shape用biggest perimeter. 我怎样才能做到这一点？我在哪里比较？新课？[方圆比较]

public class Circle {
        public double x,y,r;
        public double circumference() {
            return 2*(3.14)*r;
        }
        public double area() {
            return 3.14*r*r;
        }
        public Circle bigger(Circle c){
            if(c.r>r) return c; else return this; 
        } 
        public Circle(double x, double y, double r) {
            this.x=x; 
            this.y=y; 
            this.r=r;
        }
    }

public class Square {
    public double x,y,a;
    public double perimeter() {
        return 4*a;
    }
    public double area() {
        return a*a;
    }
    public Square bigger(Square s){
        if(s.a>a) return s; else return this; 
    } 
    public Square(double x, double y, double a) {
        this.x=x; 
        this.y=y; 
        this.a=a;
    }
}

public class CircleAndSquareTest {

    public static void main(String[] args) {
        Circle c1 = new Circle(0.0,0.0,1.0);
        Circle c2 = new Circle(1.0,0.0,2.0);
        Circle c3 = new Circle(0.0,2.0,4.0);
        Circle c4 = new Circle(1.0,3.0,1.0);
        Circle cb = c1.bigger(c2).bigger(c3).bigger(c4);
        System.out.println("The circle with the biggest circumference has:\n");
        System.out.println("x-axis value: " + cb.x + " y-axis value: " + cb.y + " radius: " + cb.r+"\n");

        Square s1 = new Square(0.0,0.0,1.0);
        Square s2 = new Square(0.0,0.0,1.0);
        Square s3 = new Square(0.0,0.0,5.0);
        Square s4 = new Square(4.0,2.0,2.0);
        Square s5 = new Square(0.0,0.0,1.0);
        Square sb = s1.bigger(s2).bigger(s3).bigger(s4).bigger(s5);
        System.out.println("The square with the biggest area has:\n");
        System.out.println("x-axis value: " + sb.x + " y-axis value: " + 
        sb.y + " side: " + sb.a);
    }
}

标签： java

java - 尺寸比较（周长/平方周长）等

问题描述

解决方案

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