Fraction

Fraction

package hbu.WengKai.Fraction;import java.util.Scanner;
//私有属性相同类的不同成员可以调用
public class Main
{
    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
{
    private int molecular, denominator;public Fraction(int a, int b){
    this.molecular = a;this.denominator = b;}public double toDouble(){
    return molecular * 1.0 / denominator;}public Fraction plus(Fraction r){
    Fraction m = new Fraction(0, 1);m.denominator = r.denominator * denominator;m.molecular = molecular * r.denominator + denominator * r.molecular;return m;}public Fraction multiply(Fraction r){
    Fraction m = new Fraction(0, 1);m.denominator = r.denominator * denominator;m.molecular = molecular * r.molecular;return m;}void print(){
    int r, x = denominator, y = molecular;while (y != 0){
    r = x % y;x = y;y = r;}molecular /= x;denominator /= x;if (molecular == denominator) System.out.println(molecular / denominator);else System.out.println(molecular + "/" + denominator);return;}
}