Explicitly multiplying values as longs
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by Bill Szerdy
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Published on 2010-04-03T19:37:13Z
Indexed on
2010/04/03
19:43 UTC
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I understand that all math is done as the largest data type required to handle the current values but when you transverse a loop how do you explicitly multiply longs? The following code returns 0, I suspect, because of an overflow.
long result = 0L;
List<Long> temp = (List<Long>) getListOfIntegers();
for (int i = 0; i < temp.size(); i++) {
result *= temp.get(i).longValue();
}
System.out.println(result);
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