abstract public void methoda ();
public abstract double inethoda ();
static void methoda (double dl) {}
public native double methoda () {}
protected void methoda (double dl) {}
第1题:
下列程序片段中,能通过编译的是( )。
A.public abstract class Animal{ public void speak;}
B.public abstract class Animal{ public void speak{);}
C.public class Animal{ pubilc abstract void speak;}
D.public abstract class Animal{ pubile abstract void speak{};}
第2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?()
第3题:
下列程序片段中,能通过编译的是
A.public abstract class Animal{ public void speak();}
B.public abstract class Animal{ public void speak(){}}
C.public class Animal{ public abstract void speak();}
D.public abstract class Animal{ public abstract void speak(){}}
第4题:
可以限制一个方法重载的声明语句有()。
第5题:
在接口中以下哪条定义是正确的?()
第6题:
指出下面哪一项是在抽象类中声明一个抽象方法。( )
A.public abstract method();
B.public abstract void method();
C.public void abstract Method();
D.public void method(){abstract;}
第7题:
Which two are valid declarations within an interface definition?()
第8题:
下列程序片段中,能通过编译的是( )。
A.public abstract class Animal{public void speak( );}
B.public abstract class Animal{public void speak( ){};}
C.public class Animal{pubilc abstract void speak( );}
D.public abstract class Animal{pubile abstract void speak( ){};}
第9题:
哪二种声明防止方法覆盖?()
第10题:
public class OuterClass { private double d1 1.0; //insert code here } You need to insert an inner class declaration at line2. Which two inner class declarations are valid?()