Consider the snippet,
Vector <String>strObject = new Vector <String>();
Now adding an int or any other type of object into this collection would throw a compile time error, which sounds good...!
//strObject.add(12) -- Compilation error
On the other hand,
Vector newVector = strObject;
This doesn't throw any compilation errors rather, you see a warning to recompile with -Xlint, which many a times we ignore....!
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