A.byte B.short C.int D.float
A.staticvoidmethod() B.publicvoidmethod() C.finalvoidmethod() D.abstractvoidmethod()
A.publicfloataMethod(floata,floatb,floatc){} B.publicfloataMethod(floatc,floatd){} C.publicfloataMethod(inta,intb){} D.publicfloataMethod(inta,intb,intc){}