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April 25, 2015 04:12
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ractical OOD in Ruby : Addison - Wesley
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| Class : Doing possible smallest thing | |
| Change : | |
| -> no side effects | |
| -> small change in requirement require small change in code | |
| -> existing code should be easy to reuse | |
| -> add code that in itself must be easy to change further | |
| TRUE princliple | |
| High cohesion : High single ersposibility | |
| Depend on behaviour not on data. | |
| Hide Data Structures(cell[0]: rim, cell[1]: tire) | |
| Even iteration should be isolated |
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