java - Checking object of wrapper class Float is null -

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i need check object of wrapper class null.for have written checking statements

float a=null;  a==null; a.tostring().equals(null)

but these wrong.please advice me

a == null right way it

attempting a.tostring().equals(null) throw nullpointerexception, because can not invoke method (in case tostring() on null object (the equals() never executed)


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