👉 "Non-setter" is a concept in programming and software engineering, which refers to an object that cannot be set to a value. This means that once a non-setter object has been created, it cannot be changed or modified after it was initialized. In other words, if you try to set a non-setter as the initial value of some variable, the program will crash because it can't determine what value to assign to the variable based on the current state of the object. This is