网友您好, 请在下方输入框内输入要搜索的题目:

题目内容 (请给出正确答案)
单选题
Which code should be inserted at line 1 of Demo.java to compile and run Demo toprint "pizzapizza"?()
A

import utils.*;

B

static import utils.*;

C

import utils.Repetition.*;

D

static import utils.Repetition.*;

E

import utils.Repetition.twice();

F

import static utils.Repetition.twice;

G

static import utils.Repetition.twice;


参考答案

参考解析
解析: 暂无解析
更多 “单选题Which code should be inserted at line 1 of Demo.java to compile and run Demo toprint "pizzapizza"?()A import utils.*;B static import utils.*;C import utils.Repetition.*;D static import utils.Repetition.*;E import utils.Repetition.twice();F import static utils.Repetition.twice;G static import utils.Repetition.twice;” 相关考题
考题 Given:Which code, inserted at line 4, guarantees that this program will output [1, 2]()? A.Set set = new TreeSet();B.Set set = new HashSet();C.Set set = new SortedSet();D.List set = new SortedList();E.Set set = new LinkedHashSet();

考题 Given: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 */ }

考题 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;

考题 Given: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;

考题 Given:Under which three circumstances will the code on line 37 be executed?() A.The instance gets garbage collected.B.The code on line 33 throws an exception.C.The code on line 35 throws an exception.D.The code on line 31 throws an exception.E.The code on line 33 executes successfully.

考题 Given a class Repetition:Which code should be inserted at line 1 of Demo.java to compile and run Demo to print pizzapizza?() A.import utils.*;B.static import utils.*;C.import utils.Repetition.*;D.static import utils.Repetition.*;E.import utils.Repetition.twice();F.import static utils.Repetition.twice;G.static import utils.Repetition.twice;

考题 Given:Which code fragment, inserted at line 23, allows the code to compile?() A.df = new DateFormat();B.df = Date.getFormat();C.df = date.getFormat();D.df = DateFormat.getFormat();E.df = DateFormat.getInstance();

考题 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; }

考题 Given: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();

考题 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()

考题 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 */ }

考题 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();

考题 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();

考题 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 */ }

考题 多选题class One {  void foo() {}  }  class Two extends One {   //insert method here  }  Which three methods, inserted individually at line 14, will correctly complete class Two?()Aint foo() { /* more code here */ }Bvoid foo() { /* more code here */ }Cpublic void foo() { /* more code here */ }Dprivate void foo() { /* more code here */ }Eprotected void foo() { /* more code here */ }

考题 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()

考题 多选题Given: Which three methods, inserted individually at line 14, will correctly complete class Two?()Aint foo() { /* more code here */ }Bvoid foo() { /* more code here */ }Cpublic void foo() { /* more code here */ }Dprivate void foo() { /* more code here */ }Eprotected void foo() { /* more code here */ }

考题 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;

考题 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();

考题 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()

考题 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();

考题 单选题Given: 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 l = new Line() ; l.Point p = new l.Point();

考题 单选题Given a class Repetition: 1.package utils; 2. 3.public class Repetition{ 4.public static String twice(Strings){returns+s;} 5.} and given another class Demo: 1.//insert code here2. 3.public class Demo{ 4.public static void main(String[]args){ 5.System.out.println(twice("pizza")); 6.} 7.} Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”?()A import utils.*;B static import utils.*;C importutils.Repetition.*;D static importutils.Repetition.*;E import utils.Repetition.twice();F import static utils.Repetition.twice;G static import utils.Repetition.twice;

考题 单选题Given a class Repetition:  1. package utils;  2.  3. public class Repetition {  4. public static String twice(String s) { return s + s; }  5. }  and given another class Demo:  1. // insert code here 2.  3. public class Demo {  4. public static void main(String[] args) {  5. System.out.println(twice(”pizza”));  6. }  7. }  Which code should be inserted at line 1 of Demo.java to compile and run Demo to print“pizzapizza”?()A  import utils.*;B  static import utils.*;C  import utils.Repetition.*;D  static import utils.Repetition. *;E  import utils.Repetition.twice();F  import static utils.Repetition.twice;G  static import utils.Repetition.twice;

考题 单选题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;

考题 多选题Given: Which four code fragments, inserted independently at line 7, will compile?()Apublic void m1() { }Bprotected void m1() { }Cprivate void m1() { }Dvoid m2() { }Epublic void m2() { }Fprotected void m2() { }

考题 单选题Given: 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;

考题 单选题Which code should be inserted at line 1 of Demo.java to compile and run Demo toprint "pizzapizza"?()A import utils.*;B static import utils.*;C import utils.Repetition.*;D static import utils.Repetition.*;E import utils.Repetition.twice();F import static utils.Repetition.twice;G static import utils.Repetition.twice;