Created
February 22, 2012 19:50
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Java collection evolution
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| //How it started | |
| Type [] col = getCol(); | |
| for(int i = 0;i < col.length;i++){ | |
| Type obj = col[i]; | |
| //Use obj | |
| } | |
| //Enter untyped collections | |
| //This is worse than before, IMO | |
| //since you blindly cast to Type | |
| //At least before, arrays were typed. | |
| List colList = getCol(); | |
| for(Iterator itr = colList.getIterator();itr.hasNext();){ | |
| Type obj = (Type)itr.next(); | |
| //Use obj | |
| } | |
| //Enter generic collections | |
| //Angelic songs queue up | |
| List<Type> col = getCol(); | |
| for(Type t : col){ | |
| //Use t | |
| } |
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