java考试题带答案.doc

文档介绍：-levellanguage・Acompilerisaprogramthattranslatessourceprogramintoexecutablecode・・OriginallycalledOak,・Examplesofkeywordsareclass,static,・{publicstaticvoidmein(String[]args){•print丄n(HmorningH);System,out "afternoon");:etoJava!shouldbeenclosedinsidedoublequotationmarks・Line5:Thelast)shouldbe}.pileaprogram,・classfile・Makesureyouplacedthe・classintherightplace,mandwithappropriatepackagename・Theclassdoesnothaveamainmethod,-lassExercisel_6{publicstaticvoidmain(String[]args){(l+2+3+4+5+6+7+8+9);}}1-lassExercisel_7{publicstaticvoidmain(String[]args){(4*(1-+・+・+));}}:applet,Applet,$4,apps,x,y,radiusInvalididentifiers:a++,-a,4#R,#44,class,public,intKeywords:class,public,::::kisanint,cannotassignadoublevaluetok・Lines7-8:-("l"+1); =>'+1); =>50(("l"+1+1); =>("l"+(1+1));=>('l'+1+1);=>;lassExercise2_2{publicstaticvoidmain(String[]args){Scannerinput=newScanner();//(,fEnterradiusofthecylinder:H);doubleradius=);//(HEnterlengthofthecylinder:");doublelength=();d