Using methods on initialization

Question

I don't know how to ask right question so here's code:

public class Foo
{
    private isTrue;

    public Foo() {}

    public Foo setBoolean(boolean b)
    {
        this.isTrue = b;
        return this;
    }
}

And then:

Foo foo = new Foo().setBoolean(true);

OR

public class FooTwo
{
    private isTrue;

    public FooTwo() {}

    public void setBoolean(boolean b)
    {
        this.isTrue = b;
    }
}

And then:

FooTwo fooTwo = new FooTwo();
fooTwo.setBoolean(true);

Which one is better/faster/preferred (more used)? Why?

Faster in this particular case - declare and call void or return alredy set Foo.