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Editorial Team
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Editorial Team
Asked: May 15, 20262026-05-15T20:23:28+00:00 2026-05-15T20:23:28+00:00

why can’t java have types as arguments ? e.g. can’t have Vector of reals

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why can’t java have types as arguments ?

e.g. can’t have Vector of reals where compiler checks type.

(example taken from http://www.ics.uci.edu/~kibler/javacourse/java.html)

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  1. Editorial Team
    Editorial Team
    2026-05-15T20:23:29+00:00Added an answer on May 15, 2026 at 8:23 pm

    I think that might be outdated, as now you can do:

    Vector<Real> vec = new Vector<Real>();
    

    and the compiler will signal an error if you try to :

    vec.add(new Animal());
    
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