Java Help

New to programming in general.
I learned how to use the turtle class to draw.

However, how do you make two turtles?

What I do is:

World w= new World();
Turtle t1 = new Turtle(w);

but when I do:

World w= new World();
Turtle t1 = new Turtle(w);
Turtle t2 = new Turtle(w);

it doesn't work.

I am EXTREMELY new at this so HALP faggots.

inb4 OP is a faggot