package foo; public class Outer { public static class Inner { } } Which statement is true?()
第1题:
Which thefollowingstatements about static inner classes is true?()
第2题:
Which the following two statements are true?()
第3题:
Which statement about static inner classes is true? ()
第4题:
Which statements about static inner classes are true?()
第5题:
1. public class enclosingone ( 2. public class insideone{} 3. ) 4. public class inertest( 5. public static void main (string[]args)( 6. enclosingone eo= new enclosingone (); 7. //insert code here 8. ) 9. ) Which statement at line 7 constructs an instance of the inner class?()
第6题:
new Inner(); // At line 3
new Inner(); // At line 8
new o.Inner(); // At line 8
new Outer.Inner(); // At line 8
第7题:
An anonymous inner class may be declared as final.
An anonymous inner class can be declared as private.
An anonymous inner class can implement multiple interfaces.
An anonymous inner class can access final variables in any enclosing scope.
Construction of an instance of a static inner class requires an instance of the enclosing outer class.
第8题:
static class InnerOne { public double methoda() {return d1;} }
static class InnerOne { static double methoda() {return d1;} }
private class InnerOne { public double methoda() {return d1;} }
protected class InnerOne { static double methoda() {return d1;} }
public abstract class InnerOne { public abstract double methoda(); }
第9题:
An inner class may be declared as static.
An anonymous inner class can be declared as public.
An anonymous inner class can be declared as private.
An anonymous inner class can extend an abstract class.
An anonymous inner class can be declared as protected.
第10题:
A static inner class requires a static initializer.
A static inner class requires an instance of the enclosing class.
A static inner class has no reference to an instance of the enclosing class.
A static inner class has access to the non-static members of the outer class.
Static members of a static inner class can be referenced using the class name of the static inner class.
第11题:
InsideOnew ei= eo.new InsideOn();
Eo.InsideOne ei = eo.new InsideOne();
InsideOne ei = EnclosingOne.new InsideOne();
EnclosingOne.InsideOne ei = eo.new InsideOne();
第12题:
An anonymous class can be declared as static.
A static inner class cannot be a static member of the outer class.
A static inner class does not require an instance of the enclosing class.
Instance member of a static inner class can be referenced using the class name of the staticinner class.
第13题:
package foo; public class Outer ( public static class Inner ( ) ) Which statement is true? ()
第14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?()
第15题:
public class enclosingone ( public class insideone{} ) public class inertest( public static void main (stringargs)( enclosingone eo= new enclosingone (); //insert code here ) ) Which statement at line 7 constructs an instance of the inner class?()
第16题:
Which statement is true?()
第17题:
10. class Inner { 11. private int x; 12. public void setX( int x) { this.x = x; } 13. public int getX() { return x; } 14. } 15. 16. class Outer { 17. private Inner y; 18. public void setY( Inner y) { this.y = y; } 19. public Inner getY() { return y; } 20. } 21. 22. public class Gamma { 23. public static void main( String[] args) { 24. Outer o = new Outer(); 25. Inner i = new Inner(); 26.int n=10; 27. i.setX(n); 28. o.setY(i); 29. // insert code here 30. System.out.println( o.getY().getX()); 31. } 32. } Which three code fragments, added individually at line 29, produce the output 100?()
第18题:
Compilation fails.
An instance of the Inner class can be constructed with “new Outer.Inner()”.
An instance of the Inner class cannot be constructed outside of package foo.
An instance of the Inner class can be constructed only from within the Outer class.
From within the package foo, and instance of the Inner class can be constructed with “new Inner()”.
第19题:
n = 100;
i.setX( 100);
o.getY().setX( 100);
i = new Inner(); i.setX( 100);
o.setY( i); i = new Inner(); i.setX( 100);
i = new Inner(); i.setX( 100); o.setY( i);
第20题:
Member variables of the outer instance are always accessible to inner instances, regardless of their accessibility modifiers.
Member variables of the outer instance can never be referred to using only the variable name within the inner instance.
More than one inner instance can be associated with the same outer instance.
All variables from the outer instance that should be accessible in the inner instance must be declared final.
A class that is declared final cannot have any inner classes.
第21题:
An anonymous class can be declared as static.
A static inner class cannot be a static member of the outer class.
A static inner class does not require an instance of the enclosing class.
Instance members of a static inner class can be referenced using the class name of the static inner class.
第22题:
An instance of the Inner class can be constructed with “new Outer.Inner ()”
An instance of the inner class cannot be constructed outside of package foo.
An instance of the inner class can only be constructed from within the outer class.
From within the package bar, an instance of the inner class can be constructed with “new inner()”
第23题:
An inner class may be declared as static.
An anonymous inner class can be declared as public.
An anonymous inner class can be declared as private.
An anonymous inner class can extend an abstract class.
An anonymous inner class can be declared as protected.