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单选题
现有:  interface Data {public void load();}  abstract class Info {public abstract void load();}      下列类定义中正确使用Data和Info的是哪项?()
A

 public class Employee implements Info extends Data { public void load(){/*dosomething*/}     }

B

public class Employee extends Inf.implements Data{ public void load() {/*do something*/}     }

C

public class Empl.yee implements Inf extends Data{ public void Data.1oad(){* do something*/}     public void load(){/*do something*/}     }

D

public class Employee extends Inf implements Data  {  public void Data.1oad()  {/*do something*/)     public void info.1oad(){/*do something*/}    }


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更多 “单选题现有:  interface Data {public void load();}  abstract class Info {public abstract void load();}      下列类定义中正确使用Data和Info的是哪项?()A  public class Employee implements Info extends Data { public void load(){/*dosomething*/}     }B public class Employee extends Inf.implements Data{ public void load() {/*do something*/}     }C public class Empl.yee implements Inf extends Data{ public void Data.1oad(){* do something*/}     public void load(){/*do something*/}     }D public class Employee extends Inf implements Data  {  public void Data.1oad()  {/*do something*/)     public void info.1oad(){/*do something*/}    }” 相关考题
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考题 单选题Which will declare a method that is available to all members of the same package and can be referenced without an instance of the class?()A  Abstract public void methoda();B  Public abstract double methoda();C  Static void methoda(double d1){}D  Public native double methoda()  {}E  Protected void methoda(double d1)  {}

考题 单选题现有:  1. interface Animal {  2. void eat();  3. }  4.  5. // insert code here  6.  7. public class HouseCat extends Feline {  8. public void eat() { }  9. }   和五个声明:  abstract class Feline implements Animal { }  abstract class Feline implements Animal { void eat(); }  abstract class Feline implements Animal { public void eat(); }  abstract class Feline implements Animal { public void eat() { } }  abstract class Feline implements Animal { abstract public void eat(); }  分别插入到第5行,有几个可以通过编译?()A 0B 1C 2D 3

考题 单选题Which will declare a method that is available to all members of the same package and be referenced without an instance of the class?()A  abstract public void methoda ();B  public abstract double inethoda ();C  static void methoda (double dl) {}D  public native double methoda () {}E  protected void methoda (double dl) {}

考题 单选题现有:  interface Animal {       void eat () ;       }       //insert code here       public class HouseCat extends Feline {       public void eat() { }       }  和五个申明  abstract class Feline implements Animal { }  abstract  class  Feline  implements  Animal  {  void eat () ;  }  abstract class Feline implements Animal { public void eat();}  abstract class Feline implements Animal { public void eat() {}  }  abstract class Feline implements Animal { abstract public void eat();} 结果为:()A 1B 2C 3D 4