java的类的练习

最新推荐文章于 2023-05-15 13:19:07 发布

原创最新推荐文章于 2023-05-15 13:19:07 发布 · 213 阅读

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此博客围绕Java类的练习展开，虽未给出具体内容，但可知聚焦于Java类相关操作，属于后端开发中Java技术的实践应用。

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import java.util.Scanner;

class App {

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);

        Fraction a = new Fraction(in.nextInt(), in.nextInt());

        Fraction b = new Fraction(in.nextInt(), in.nextInt());

        a.print();

        b.print();

        a.plus(b).print();

        a.multiply(b).plus(new Fraction(5, 6)).print();

        a.print();

        b.print();

        in.close();

    }

}

class Fraction {

    int up;
    int down;

    Fraction(int up, int down) {

        this.up = up;
        this.down = down;
        int temp;
        while ((temp = up % down) != 0) {
            up = down;
            down = temp;
        }
        temp = down;
        if (temp != 1) {
            this.up = this.up / temp;
            this.down = this.down / temp;
        }

    }

    void print() {
        if (this.up == 1 && this.down == 1)
            System.out.println("1");
        else
            System.out.println(this.up + "/" + this.down);
    }

    Fraction plus(Fraction b) {
        int x1, x2, y1, y2;
        x1 = this.up;
        x2 = this.down;
        y1 = b.up;
        y2 = b.down;
        int fenmu;
        int fenzi;
        fenzi = x1 * y2 + x2 * y1;
        fenmu = x2 * y2;
        int r, save1, save2;
        save1 = fenzi;
        save2 = fenmu;
        while ((r = fenzi % fenmu) != 0) {
            fenzi = fenmu;
            fenmu = r;
        }
        fenzi = save1 / fenmu;
        fenmu = save2 / fenmu;
        return new Fraction(fenzi, fenmu);
    }

    Fraction multiply(Fraction b) {
        return new Fraction(this.up * b.up, this.down * b.down);
    }

}