Why am I able to access a method without object in java [duplicate]

Answer 1

navigateTomyProjects() is an instance method.
It is being called from addDefaultProjectBymyProjects(), another instance method.

These methods are not being accessed without an object; they are being accessed by this - the current instance against which these methods will be executed.

There is nothing mysterious about this code.

Answer 2

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).