immutable Objects and Classes

public class immutable {

    private int id;

    private String Name;

    private java.util.Date dateCreate;

    public immutable(int Roll, String name)

    {

        id=Roll;

        Name=name;

        dateCreate=new java.util.Date();

    }

  

    public int getId()

    {

        return id;

    }

    public String getName()

    {

        return Name;

    }

public java.util.Date getdateCreate()

{

    return dateCreate;

}

}

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public class TestImmutable {

    public static void main(String []arg)

    {

        immutable Student=new immutable(26,"Abdullah");

        java.util.Date dateCreate=Student.getdateCreate();

        dateCreate.setTime(200000);

      

    }

  

}