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  1. Unnecessary Object Creation with Mutable Objects

    by , 11-29-2011 at 11:59 PM
    Continuing with our last tip on immutable objects, we now look at re-using mutable objects. Although you cannot modify a mutable object, you can avoid unnecessarily waste memory by reusing the existing instance. So consider for example mutable Date objects. Once the values are computed, they are never modified. So for example if you a running a loop in which each loop a string instance is required, rather than create a new instance every time it executes, you simply reuse the existing instance. ...