Both the methods navigateTomyProjects() and addDefaultProjectBymyProjects() reside as instance methods in the same class. As a result, either of the methods can access the other method without explicitly creating an object of the class.
To be more precise, addDefaultProjectBymyProjects() calls navigateTomyProjects() internally as this.navigateTomyProjects(). Here, the this keyword refers to the current object (invoking object).