求各位大大们解答一下

参考如下：

Fraction类

public class Fraction {
    private int fz;
    private int fm;
    
    public Fraction(int fz1,int fm1){
        this.fz = fz1;
        this.fm = fm1;
    }

    public int getFz() {
        return fz;
    }

    public void setFz(int fz) {
        this.fz = fz;
    }

    public int getFm() {
        return fm;
    }

    public void setFm(int fm) {
        this.fm = fm;
    }
    
    public double value(){
        return (double)fz/(double)fm;
    }
    public boolean equal(Fraction b){
        if(this.fz== b.getFz() && this.fm==b.getFm())
            return true;
        if(this.value() == b.value())
            return true;
        return false;
    }

    @Override
    public String toString() {
        return "Fraction [fz=" + fz + ", fm=" + fm + "]";
    }

}

Test类：

public class Test {

    public static void main(String[] args) {
        Fraction f= new Fraction(2,4);
        Fraction f2=new Fraction(3,6);
        Fraction f3=new Fraction(4,5);
        if(f.equal(f2)){
            System.out.println(f+"等于"+f2);
        }else
            System.out.println(f+"不等于"+f2);
        
    }

}