将对象作为构造函数的参数传递

我有3节课。这些类是Class1，Parent和Child。我在弄清楚如何编写我的Child类所需的构造函数时遇到了一些麻烦。

public Class1
{
    private String firstName;
    private String lastName;

    public Class1()
    {
    firstName="";
    lastName="";
    }

    public Class1(String firstName, String lastName)
    {
    this.firstName=firstName;
    this.lastName=lastName;
    }

    //Methods and stuff
}

public Parent
{
    private Class1 class1;
    private double number;

    public Parent();
    {
    class1=new Class1();
    number=0;
    }

    public Parent(Class1 c, double n)
    {
    Class1=c;
    number=n;
    }

//Methods and stuff
}

public Child extends Parent
{
    private String string;
    private Boolean boolean;

    public Child(Class1 class1, double n, String s, Boolean b)
    {
    //Don't know how to get the Class1 part to work
    //Don't know how to get the double to work
    string=s;
    boolean=b;

//Methods and stuff
} 

我不知道如何编写代码，这样我就可以让我的构造函数接受这样的参数：

new Child(new Class1("String", "String"), 10, "String", true);

我希望这有助于弄清我的问题所在。