That article from Aaron is very good for understanding, also I’d recommend that you read manning publications Spring in Action book, they give very good examples on how the spring solves that problem it will definitely improve your understanding of this. EDIT : I came accross this in this great book called Growing object oriented … Read more
Grady Booch in “Object Oriented Analysis and Design”: “The idea of cohesion also comes from structured design. Simply stated, cohesion measures the degree of connectivity among the elements of a single module (and for object-oriented design, a single class or object). The least desirable form of cohesion is coincidental cohesion, in which entirely unrelated abstractions … Read more
High cohesion is when you have a class that does a well defined job. Low cohesion is when a class does a lot of jobs that don’t have much in common. Let’s take this example: You have a class that adds two numbers, but the same class creates a window displaying the result. This is … Read more