文档介绍：:Integeri=newInteger(42);Longl=newLong(42);Doubled=newDouble();WhichtwoexpressionsevaluatetoTrue?A.(i==1)B.(i==d)C.(d==1)D.((l))E.((l))F.((42))::lassFoo{publicstaticvoidmain(String[]args){StringBuffera=newStringBuffer("A");StringBufferb=newStringBuffer("B");operate(a,b);(a+","+b);}staticvoidoperate(StringBufferx,StringBuffery){(y);y=x;}}Whatistheresult?“A,B”.“A,A”.“B,B”.“AB,B”.“AB,AB”.“+”::classBaseClass{privatefloatx=;protectedfloatgetVar(){returnx;}}classSubclassextendsBaseClass{privatefloatx=;//inserthere}Whichtwoarevalidexamplesofmethodoverriding?(){returnx;}(){returnx;}(){returnx;}(){returnx;}(floatf){returnf;}Answer:)runB)startC)yieldD)stopAnswer:?A)floatf=1/3;B)inti=1/3;C)floatf=;D)doubled=999d;Answer::lasstest(publicstaticvoidmain(string[]args){Stringfoo=args[1];Stringbaz=args[2];Stringbax=args[3];}}mandlineinvocation:JavaTestredgreenblueWhatistheresult?“”“red”“blue”