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11.classCup{}12.classPoisonCupextendsCup{}21.publicvoidtakeCup(Cupc){22.if(cinstanceofPoisonCup){23.System.out.println(”Inconceivable!”);24.}elseif(cinstanceofCup){25.System.out.println(”Dizzyingintellect!”);26.}else{27.System.exit(0);28.}29.}Andtheexecutionofthestatements:Cupcup=newPoisonCup();takeCup(cup);Whatistheoutput?()
A.Inconceivable!
B.Dizzyingintellect!
C.Thecoderunswithnooutput.
D.Anexceptionisthrownatruntime.
E.Compilationfailsbecauseofanerrorinline22.
A.classCup{}12.classPoisonCupextendsCup{}21.publicvoidtakeCup(Cupc){22.if(cinstanceofPoisonCup){23.System.out.println(”Inconceivable!”);24.}elseif(cinstanceofCup){25.System.out.println(”Dizzyingintellect!”);26.}else{27.System.exit(0);28.}29.}Andtheexecutionofthestatements:Cupcup=newPoisonCup();takeCup(cup);Whatistheoutput?()
A.Inconceivable!
B.Dizzyingintellect!
C.Thecoderunswithnooutput.
D.Anexceptionisthrownatruntime.
E.Compilationfailsbecauseofanerrorinline22.
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客户刚刚提交订单,此时订单的状态是()。
A.未处理
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classFoo{
privateintx;
publicFoo(intx){this.x=x;}
publicvoidsetX(intx){this.x=x;}
publicintgetX(){returnx;}
}
publicclassGamma{
staticFoofooBar(Foofoo){
foo=newFoo(100);
returnfoo;
}
publicstaticvoidmain(String[]args){
Foofoo=newFoo(300);
System.out.print(foo.getX()+-);
FoofooFoo=fooBar(foo);
System.out.print(foo.getX()+-);
System.out.print(fooFoo.getX()+-);
foo=fooBar(fooFoo);
System.out.print(foo.getX()+-);
System.out.prmt(fooFoo.getX());
}
}
Whatistheoutputofthisprogram?()
A.x=x;}
B.x=x;}
C.out.print(foo.getX()+-);
D.out.print(foo.getX()+-);
E.out.print(fooFoo.getX()+-);
F.out.print(foo.getX()+-);
G.out.prmt(fooFoo.getX());
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