题目内容

11.classPayload{
12.privateintweight;
13.publicPayload(intwt){weight=wt;}
13.publicvoidsetWeight(mtw){weight=w;}
15.publicStringtoString{returnInteger.toString(weight);}
16.}
17.
18.publicclassTestPayload{
19.staticvoidchangePayload(Payloadp){
20./*insertcodehere*/
21.}
22.
23.publicstaticvoidmain(String[]args){
24.Payloadp=newPayload();
25.p.setWeight(1024);
26.changePayload(p);
27.System.out.println(”Thevalueofpis+p);
28.}
29.}
Whichstatement,placedatline20,causesthecodetoprintThevalueofpis420.”?()

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publicclassItem{
privateStringdesc;
publicStringgetDescription(){returndesc;}
publicvoidsetDescription(Stringd){desc=d;}
publicstaticvoidmodifyDesc(Itemitem,Stringdesc){
item=newItem();
item.setDescription(desc);
}
publicstaticvoidmain(String[]args){
Itemit=newItem();
it.setDescription(”Gobstopper”);
Itemit2=newItem();
it2.setDescription(”Fizzylifting”);
modifyDesc(it,Scrumdiddlyumptious”);
System.out.println(it.getDescription());
System.out.println(it2.getDescription());
}
}
Whatistheoutcomeofthecode?()

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?()

在墙体安装位置需补充()的聚苯板条填堵缝隙。

在完全垄断市场上,对于任何产量,厂商的平均收益大于边际成本()

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