单选题10. class Nav{  11. public enum Direction { NORTH, SOUTH, EAST, WEST }  12. }  13. public class Sprite{  14. // insert code here  15. }  Which code, inserted at line 14, allows the Sprite class to compile?()A Direction d = NORTH;B Nav.Direction d = NORTH;C Direction d = Direction.NORTH;D Nav.Direction d = Nav.Direction.NORTH;

单选题
10. class Nav{  11. public enum Direction { NORTH, SOUTH, EAST, WEST }  12. }  13. public class Sprite{  14. // insert code here  15. }  Which code, inserted at line 14, allows the Sprite class to compile?()
A

 Direction d = NORTH;

B

 Nav.Direction d = NORTH;

C

 Direction d = Direction.NORTH;

D

 Nav.Direction d = Nav.Direction.NORTH;


参考解析

解析: 暂无解析

相关考题:

classNav{11.publicenumDirection{NORTH,SOUTH,EAST,WEST}12.}13.publicclassSprite{14.//insertcodehere15.}Whichcode,insertedatline14,allowstheSpriteclasstocompile?() A.Directiond=NORTH;B.Nav.Directiond=NORTH;C.Directiond=Direction.NORTH;D.Nav.Directiond=Nav.Direction.NORTH;

Given:Which code, inserted at line 14, allows the Sprite class to compile?() A.Direction d = NORTH;B.Nav.Direction d = NORTH;C.Direction d = Direction.NORTH;D.Nav.Direction d = Nav.Direction.NORTH;

Given:Which code, inserted at line 15, allows the class Sprite to compile?() A.Foo { public int bar() { return 1; }B.new Foo { public int bar() { return 1; }C.new Foo() { public int bar() { return 1; }D.new class Foo { public int bar() { return 1; }

class One {  void foo() {}  }  class Two extends One {   //insert method here  }  Which three methods, inserted individually at line 14, will correctly complete class Two?()A、 int foo() { /* more code here */ }B、 void foo() { /* more code here */ }C、 public void foo() { /* more code here */ }D、 private void foo() { /* more code here */ }E、 protected void foo() { /* more code here */ }

10. public class Bar {  11.static void foo(int...x) {  12. // insert code here  13. }  14. }  Which two code fragments, inserted independently at line 12, will allow the class to compile?()A、 foreach(x) System.out.println(z);B、 for(int z : x) System.out.println(z);C、 while( x.hasNext()) System.out.println( x.next());D、 for( int i=0; i x.length; i++ ) System.out.println(x[i]);

10. class Line {  11. public static class Point { }  12. }  13.  14. class Triangle {  15. // insert code here  16. }  Which code, inserted at line 15, creates an instance of the Point class defined in Line?() A、 Point p = new Point();B、 Line.Point p = new Line.Point();C、 The Point class cannot be instatiated at line 15.D、 Line 1 = new Line() ; 1.Point p = new 1.Point();

10. interface Foo { int bar(); }  11. public class Sprite {  12. public int fubar( Foo foo) { return foo.bar(); }  13. public void testFoo() {  14. fubar(  15. // insert code here  16.);  17. }  18. }  Which code, inserted at line 15, allows the class Sprite to compile?() A、 Foo { public int bar() { return 1; } }B、 new Foo { public int bar() { return 1; } }C、 newFoo() { public int bar(){return 1; } }D、 new class Foo { public int bar() { return 1; } }

11. public class Counter {  12. public static void main(String[] args) {  13. int numArgs = /* insert code here */;  14. }  15. }  and the command line: java Counter one fred 42 Which code, inserted at line 13, captures the number of arguments passed into the program?() A、 args.countB、 args.lengthC、 args.count()D、 args.length()E、 args.getLength()

10. abstract public class Employee {  11. protected abstract double getSalesAmount();  12. public double getCommision() {  13. return getSalesAmount() * 0.15;  14. }  15. }  16. class Sales extends Employee {  17. // insert method here  18. }  Which two methods, inserted independently at line 17, correctly complete the Sales class?()A、 double getSalesAmount() { return 1230.45; }B、 public double getSalesAmount() { return 1230.45; }C、 private double getSalesAmount() { return 1230.45; }D、 protected double getSalesAmount() { return 1230.45; }

10. class Nav{  11. public enum Direction { NORTH, SOUTH, EAST, WEST }  12. }  13. public class Sprite{  14. // insert code here  15. }  Which code, inserted at line 14, allows the Sprite class to compile?() A、 Direction d = NORTH;B、 Nav.Direction d = NORTH;C、 Direction d = Direction.NORTH;D、 Nav.Direction d = Nav.Direction.NORTH;

10. public class Foo implements java.io.Serializable {  11. private int x;  12. public int getX() { return x; }  12.publicFoo(int x){this.x=x; }  13. private void writeObject( ObjectOutputStream s)  14. throws IOException {  15. // insert code here  16. }  17. }  Which code fragment, inserted at line 15, will allow Foo objects to be correctly serialized and deserialized?() A、 s.writeInt(x);B、 s.serialize(x);C、 s.writeObject(x);D、 s.defaultWriteObject();

10. interface Foo {}  11. class Alpha implements Foo {}  12. class Beta extends Alpha {}  13. class Delta extends Beta {  14. public static void main( String[] args) {  15. Beta x = new Beta();  16. // insert code here  17. }  18. }  Which code, inserted at line 16, will cause a java.lang.ClassCastException?() A、 Alpha a = x;B、 Foo f= (Delta)x;C、 Foo f= (Alpha)x;D、 Beta b = (Beta)(Alpha)x;

定义枚举如下:  public  enum  Direction{      EAST,SOUTH,WEST,NORTH      }  下列正确使用该枚举类型的语句是哪项?()    A、Direction Direction=EAST;B、Direction direction=Direction.WEST;C、int a- Direction.NORTH;D、Direction direction=2;

10. class Line {  11. public class Point { public int x,y; }  12. public Point getPoint() { return new Point(); }  13. }  14. class Triangle {  15. public Triangle() {  16. // insert code here  17. }  18. }  Which code, inserted at line 16, correctly retrieves a local instance of a Point object?() A、 Point p = Line.getPoint();B、 Line.Point p = Line.getPoint();C、 Point p = (new Line()).getPoint();D、 Line.Point p = (new Line()).getPoint();

Given:   10. class One {   11. void foo() { }   12. }   13. class Two extends One {   14. //insert method here   15. }   Which three methods, inserted individually at line 14, will correctly complete class Two?()A、 public void foo() { /* more code here */ }B、 private void foo() { /* more code here */ }C、 protected void foo() { /* more code here */ }D、 int foo() { /* more code here */ }  E、 void foo() { /* more code here */ }

多选题Given:   10. class One {   11. void foo() { }   12. }   13. class Two extends One {   14. //insert method here   15. }   Which three methods, inserted individually at line 14, will correctly complete class Two?()Apublic void foo() { /* more code here */ }Bprivate void foo() { /* more code here */ }Cprotected void foo() { /* more code here */ }Dint foo() { /* more code here */ }Evoid foo() { /* more code here */ }

单选题10. interface Foo {}  11. class Alpha implements Foo {}  12. class Beta extends Alpha {}  13. class Delta extends Beta {  14. public static void main( String[] args) {  15. Beta x = new Beta();  16. // insert code here  17. }  18. }  Which code, inserted at line 16, will cause a java.lang.ClassCastException?()A Alpha a = x;B Foo f= (Delta)x;C Foo f= (Alpha)x;D Beta b = (Beta)(Alpha)x;

单选题11. public class Counter {  12. public static void main(String[] args) {  13. int numArgs = /* insert code here */;  14. }  15. }  and the command line: java Counter one fred 42 Which code, inserted at line 13, captures the number of arguments passed into the program?()A args.countB args.lengthC args.count()D args.length()E args.getLength()

单选题10. public class Foo implements java.io.Serializable {  11. private int x;  12. public int getX() { return x; }  12.publicFoo(int x){this.x=x; }  13. private void writeObject( ObjectOutputStream s)  14. throws IOException {  15. // insert code here  16. }  17. }  Which code fragment, inserted at line 15, will allow Foo objects to be correctly serialized and deserialized?()A s.writeInt(x);B s.serialize(x);C s.writeObject(x);D s.defaultWriteObject();

单选题定义枚举如下:  public  enum  Direction{      EAST,SOUTH,WEST,NORTH      }  下列正确使用该枚举类型的语句是哪项?()ADirection Direction=EAST;BDirection direction=Direction.WEST;Cint a- Direction.NORTH;DDirection direction=2;

单选题10. class Nav{  11. public enum Direction { NORTH, SOUTH, EAST, WEST }  12. }  13. public class Sprite{  14. // insert code here  15. }  Which code, inserted at line 14, allows the Sprite class to compile?()A Direction d = NORTH;B Nav.Direction d = NORTH;C Direction d = Direction.NORTH;D Nav.Direction d = Nav.Direction.NORTH;

多选题Given:   11. // insert code here   12. private N min, max;   13. public N getMin() { return min; }   14. public N getMax() { return max; }   15. public void add(N added) {   16. if (min == null || added.doubleValue()  max.doubleValue())  19. max = added;   20. }   21. }   Which two, inserted at line 11, will allow the code to compile?()AABBCCDDEEFF

单选题10. class Line {  11. public class Point { public int x,y; }  12. public Point getPoint() { return new Point(); }  13. }  14. class Triangle {  15. public Triangle() {  16. // insert code here  17. }  18. }  Which code, inserted at line 16, correctly retrieves a local instance of a Point object?()A Point p = Line.getPoint();B Line.Point p = Line.getPoint();C Point p = (new Line()).getPoint();D Line.Point p = (new Line()).getPoint();

单选题10. class Line {  11. public static class Point { }  12. }  13.  14. class Triangle {  15. // insert code here  16. }  Which code, inserted at line 15, creates an instance of the Point class defined in Line?()A Point p = new Point();B Line.Point p = new Line.Point();C The Point class cannot be instatiated at line 15.D Line 1 = new Line() ; 1.Point p = new 1.Point();

多选题10. public class Bar {  11.static void foo(int...x) {  12. // insert code here  13. }  14. }  Which two code fragments, inserted independently at line 12, will allow the class to compile?()Aforeach(x) System.out.println(z);Bfor(int z : x) System.out.println(z);Cwhile( x.hasNext()) System.out.println( x.next());Dfor( int i=0; i x.length; i++ ) System.out.println(x[i]);

单选题10. interface Foo { int bar(); }  11. public class Sprite {  12. public int fubar( Foo foo) { return foo.bar(); }  13. public void testFoo() {  14. fubar(  15. // insert code here  16.);  17. }  18. }  Which code, inserted at line 15, allows the class Sprite to compile?()A Foo { public int bar() { return 1; } }B new Foo { public int bar() { return 1; } }C newFoo() { public int bar(){return 1; } }D new class Foo { public int bar() { return 1; } }

单选题Given: Which code, inserted at line 14, allows the Sprite class to compile?()A Direction d = NORTH;B Nav.Direction d = NORTH;C Direction d = Direction.NORTH;D Nav.Direction d = Nav.Direction.NORTH;

多选题10. abstract public class Employee {  11. protected abstract double getSalesAmount();  12. public double getCommision() {  13. return getSalesAmount() * 0.15;  14. }  15. }  16. class Sales extends Employee {  17. // insert method here  18. }  Which two methods, inserted independently at line 17, correctly complete the Sales class?()Adouble getSalesAmount() { return 1230.45; }Bpublic double getSalesAmount() { return 1230.45; }Cprivate double getSalesAmount() { return 1230.45; }Dprotected double getSalesAmount() { return 1230.45; }