"SCJP 1.6版考題 073" 修訂間的差異
出自 陳富國維基館
(新頁面: 10. interface Data { public void load(); } 11. abstract class Info { public abstract void load(); } Which class correctly uses the Data interface and Info class? A. public ...) |
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於 2013年3月30日 (六) 06:23 的最新修訂
10. interface Data { public void load(); } 11. abstract class Info { public abstract void load(); } Which class correctly uses the Data interface and Info class? A. public class Employee extends Info implements Data { public void load(){ /* do something */ } } B. public class Employee implements Info extends Data { public void load(){ /* do something */ } } C. public class Employee extends Info implements Data public void load(){ /* do something */ } public void Info.load(){ /* do something */ } } D. public class Employee implements Info extends Data { public void Data.load(){ /* do something */ } public void load(){ /* do something */ } } E. public class Employee implements Info extends Data { public void load(){ /* do something */ } public void Info.load(){ /* do something */ } } F. public class Employee extends Info implements Data{ public void Data.load(){ /* do something */ } public void Info.load(){ /* do something */ } }
解答
Ans: A
解說: 實作介面或繼承抽象方法 都要實現其中的抽象方法
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