举一反三
- publicclassA1{publicA1(){System.out.println(hello);}}publicclassA2extendsA1{publicA2(){System.out.println(world);}}publicclassA3extendsA2{publicA3(){System.out.println(china);}}publicclassB{publicstaticvoidmain(String[]args){A1 ৠቹ ቹ뗐敔 敔ৠቹ�敘ৠቹﲘǛ瘓鞸ி
- 中国大学MOOC: 下列代码中构造方法的返回类型是（）public class Village { Village () { System .out .println(“hiding in Village”) ; } public static void main( String args [ ]) { Village c =new Village ( ) ;}class Village { public static void main( String args [ ]) { Village c =new Village ( ) ; } Village () { System .out .println(“hiding in Village”) ; } }
- 设有如下程序，其调试结果为：classQ2{publicstaticvoidmain(String[]args){int[]seeds={1,2,3,4,6,8};intn=seeds.length;for(inti=0;i3;i++)for(intk=0;kn-1;k++)seeds[k]=seeds[k+1];for(inti=0;in;i++)System.ou௲ 垎 뗐敔 敔垎�敘垎၈Ǔ瘓礀Ǡ
- WhenFarmerHoglundappliesNpoundsoffertilizerperacre,themarginalproductoffertilizeris1-(N=200)bushelsofcorn.Ifthepriceofcornis$1perbushelandthepriceoffertilizeris$0.40perpound,thenhowmanypoundsoffertilizerperacre௲ 垎 뗐敔 敔垎�敘垎၈Ǔ瘓珘௮ 㰰Ǒ 㰰Ǒ ብ盂撮
- IfthecurrentbidpricefortheEUR/USDcurrencypairis1.6750andthecurrentofferpriceis1.6753,thismeansthatcurrentlythemarketmakercanselltheEUR/USDat1.6750andbuyat1.6753.Thedifferencebetweenthoseprices(3pips)isthespread௲ 垎 뗐敔 敔垎�
内容
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IndicatewhichoftheproposedreconstructionsbestrepresentstheargumentinthefollowingpassagefromanadvertisementforEqualExchangeCoffee.…Webelieveintradingdirectlywithsmallfarmingcooperativesatmutuallyagreed-uponpriceswithafixe௲ 垎 뗐敔 敔垎�敘垎၈Ǔ瘓磈௧ 㰰Ǒ 㰰Ǒ ብ盂剦௬Ѐ 㼈௲ብ盂 Ѐ 㰰Ǒᰀ狣Ԝ盜Љ 䕄 夞ء盜 ᤀ 倘 ꋔ ᩄ 䓜䓨瑉浥 䍐
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NorthBendcurrentlyhasoneMcDonaldsfastfoodfranchise.DemandforhamburgersinNorthBendisgivenbyQ=200Qhamburgers.IfasecondMcDonaldsfranchiseweretomoveintoNorthBend(andbothbehaveasduopolists),theprofitoftheoriginalMcDo௲ 垎 뗐敔
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下面关于构造方法的调用，正确的是 A: 构造方法在类定义的时候被调用 B: 构造方法在创建对象的时候被调用 C: 构造方法在调用对象方法时被调用 D: 构造方法在使用对象的变量时被调用
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中国大学MOOC: 试图编译和运行以下代码的结果是：classBase{privateBase(){System.out.println(0);}publicBase(inti){System.out.println(i);}}publicclassTestextendsBase{publicTest(){super(1);};publicstaticvoidmain(Stringargv[]){Testt=newTest();}}
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请看下面的程序代码,当 n 为( )值时,程序段将输出字符串 second。 [br][/br] switch(n) { [br][/br] case 0: System .out .println(“first”); [br][/br] case 1: [br][/br] case 2: System .out .println(“second”); break; [br][/br] default: System .out .println(“end”); [br][/br] }(2.0) A: 0 B: 1 C: 2 D: 以上都可以