A.评价指标
B.评价目标
C.评价方法
D.评价标准
E.评价报告
第1题
A、1122
B、1122java.lang.ArrayIndexOutOfBoundsException:2atHello.main...
C、java.lang.ArrayIndexOutOfBoundsException:2atHello.main...
D、1122Error!
第2题
A.1 2 34
B.1 34
C.编译错误
D.以上都不正确
第3题
2.publicintvalue;
3.publicvoidcalculate(){value+=7;}
4.}
And:
1.publicclassMultiCalcextendsSimpleCalc{
2.publicvoidcalculate(){value-=3;}
3.publicvoidcalculate(intmultiplier){
4.calculate();
5.super.calculate();
6.value*=multiplier;
7.}
8.publicstaticvoidmain(String[]args){
9.MultiCalccalculator=newMultiCalc();
10.calculator.calculate(2);
11.System.out.println(”Valueis:+calculator.value);
12.}
13.}
Whatistheresult?()
第4题
A.Changeline2to:publicinta;
B.Changeline2to:protectedinta;
C.Changeline13to:publicSub(){this(5);}
D.Changeline13to:publicSub(){super(5);}
E.Changeline13to:publicSub(){super(a);}
第5题
A.Compilationfails.
B.CannotaddToppings
C.Thecoderunswithnooutput.
D.ANullPointerExceptionisthrowninLine4.
第6题
A.foofoofoofoofoo
B.foobarfoobarbar
C.foobarfoofoofoo
D.foobarfoobarfoo
E.barbarbarbarbar
F.foofoofoobarbar
G.foofoofoobarfoo
第7题
A.420istheoutput.
B.Anexceptionisthrownatruntime.
C.Allconstructorsmustbedeclaredpublic.
D.ConstructorsCANNOTusetheprivatemodifier.
E.ConstructorsCANNOTusetheprotectedmodifier.
第8题
A.publicvoidadd(Cc){c.getValue();}
B.publicvoidadd(Bb){b.getValue();}
C.publicvoidadd(Aa){a.getValue();}
D.publicvoidadd(Aa,Bb){a.getValue();}
E.publicvoidadd(Cc1,Cc2){c1.getValue();}
第9题
A.Compilationfailsbecauseofanerrorinline3.
B.Compilationfailsbecauseofanerrorinline7.
C.Compilationfailsbecauseofanerrorinline9.
D.IfyoudefineDe=newE(),thene.bMethod()invokestheversionofbMethod()definedinLine5.
E.IfyoudefineDe=(D)(newE()),thene.bMethod()invokestheversionofbMethod()definedinLine5.
F.IfyoudefineDe=(D)(newE()),thene.bMethod()invokestheversionofbMethod()definedinLine9.
第10题
A.Compilationwillsucceedifaextendsb.
B.Compilationwillsucceedifbextendsa.
C.Compilationwillalwaysfailbecauseofanerrorinline7.
D.Compilationwillalwaysfailbecauseofanerrorinline8.
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