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public class Clone extends Object
{
    public static void main(String[] args) 
    {
        Datum d1 = new Datum (24,12,2016);
        Datum d2 = d1.clone();
        
        boolean program = true;
        
        if (d1==d2)
        {
            program = false;
        }
        if (!(d1.equals(d2)))
        {
            program=false; 
        }
        
        System.out.println("my program ist " + program);
    }
}

class Datum extends Object
{
    
    
    int tag;
    int monat;
    int jahr; 
    
    public Datum (int tag, int monat, int jahr)
    {
        this.tag = tag;
        this.monat = monat;
        this.jahr = jahr; 
    }

    public Object clone()
    {
        return tag + "" + monat + "" +jahr;
    }

    public Object equals()
    {
        return tag + "" + monat + "" + jahr;
    }
}

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public static void main(String[] args) {
	Datum d1 = new Datum(24, 12, 2016);
	Datum d2 = (Datum) d1.clone();

	boolean program = true;

	if (d1 == d2) {
		program = false;
	}
	if (!(d1.equals(d2))) {
		program = false;
	}

	System.out.println("my program ist " + program);
}

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public class Datum {
	int tag;
	int monat;
	int jahr;

	public Datum(int tag, int monat, int jahr) {
		this.tag = tag;
		this.monat = monat;
		this.jahr = jahr;
	}

	@Override
	public Object clone() {
		return new Datum(this.tag, this.monat, this.jahr);
	}

	@Override
	public boolean equals(Object other) {
		Datum o = (Datum) other;
		return this.tag == o.tag && this.monat == o.monat
				&& this.jahr == o.jahr;
	}
}