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单选题
Given: What is the result?（）
A
Canada
B
null Canada
C
Canada null
D
Canada Canada
E
Compilation fails due to an error on line 26.
F
Compilation fails due to an error on line 29.
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更多 “单选题Given: What is the result?（）A CanadaB null CanadaC Canada nullD Canada CanadaE Compilation fails due to an error on line 26.F Compilation fails due to an error on line 29.” 相关考题
考题
public static void main(String[]args){12.Object obj=new int[]{1,2,3};13.int[] someArray=(int[])obj;14.for(inti:someArray)System.out.print(i＋)15.}What is the result?()
A.123B.Compilation fails because of an error in line 12.C.Compilation fails because of an error in line 13.D.Compilation fails because of an error in line 14.E.A ClassCastException is thrown at runtime.
考题
Given:What is the result when method testIfA is invoked?()
A.TrueB.Not trueC.An exception is thrown at runtime.D.Compilation fails because of an error at line 12.E.Compilation fails because of an error at line 19.
考题
Click the Exhibit button.Given:What is the result?()
A.Line 26 prints a to System.out.B.Line 26 prints b to System.out.C.An exception is thrown at line 26 at runtime.D.Compilation of class A will fail due to an error in line 6.
考题
23. Object [] myObjects = { 24. new integer（12）， 25. new String（”foo”）， 26. new integer（5）， 27. new Boolean（true） 28. }； 29. Arrays.sort（myObjects）； 30. for（ int i=0； i31. System.out.print（myObjects[i].toString（））； 32. System.out.print（” “）； 33. } What is the result？（） A、 Compilation fails due to an error in line 23.B、 Compilation fails due to an error in line 29.C、 A ClassCastException occurs in line 29.D、 A ClassCastException occurs in line 31.E、 The value of all four objects prints in natural order.
考题
package foo； import java.util.Vector； private class MyVector extends Vector { int i = 1； public MyVector（） { i = 2； } } public class MyNewVector extends MyVector { public MyNewVector（） { i = 4； } public static void main（String args[]） { MyVector v = new MyNewVector（）； } } What is the result？（）A、 Compilation succeeds.B、 Compilation fails because of an error at line 5.C、 Compilation fails because of an error at line 6.D、 Compilation fails because of an error at line 14.E、 Compilation fails because of an error at line 17.
考题
11.public static void main（String[]args）{ 12.Object obj=new int[]{1，2，3}； 13.int[] someArray=（int[]）obj； 14.for（inti：someArray）System.out.print（i+""） 15.} What is the result？（）A、123B、Compilation fails because of an error in line 12.C、Compilation fails because of an error in line 13.D、Compilation fails because of an error in line 14.E、A ClassCastException is thrown at runtime.
考题
1. interface TestA { String toString（）； } 2. public class Test { 3. public static void main（String[] args） { 4. System.out.println（new TestA（） { 5. public String toString（） { return “test”； } 6. } 7. } 8. } What is the result？（） A、 testB、 nullC、 An exception is thrown at runtime.D、 Compilation fails because of an error in line 1.E、 Compilation fails because of an error in line 4.F、 Compilation fails because of an error in line 5.
考题
Given： 11. static class A { 12. void process（） throws Exception { throw new Exception（）； } 13. } 14. static class B extends A { 15. void process（） { System.out.println（"B "）； } 16. } 17. public static void main（String[] args） { 18. A a = new B（）； 19. a.process（）； 20. } What is the result？ （）A、 Compilation fails because of an error in line 19.B、 An exception is thrown at runtime.C、 BD、 Compilation fails because of an error in line 18.E、 Compilation fails because of an error in line 15. F、 The code runs with no output.
考题
单选题Given： What is the result？（）A
Compilation succeeds.B
Compilation fails due to multiple errors.C
Compilation fails due to an error only on line 20.D
Compilation fails due to an error only on line 21.E
Compilation fails due to an error only on line 22.
考题
单选题Given: What is the result?（）A
testB
nullC
An exception is thrown at runtime.D
Compilation fails because of an error in line 1.E
Compilation fails because of an error in line 4.F
Compilation fails because of an error in line 5.
考题
单选题Given： What is the result？（）A
Compilation fails due to an error in line 23.B
Compilation fails due to an error in line 29.C
A ClassCastException occurs in line 29.D
A ClassCastException occurs in line 31.E
The value of all four objects prints in natural order.
考题
单选题Given: What is the result?（）A
BB
B, followed by an Exception.C
Compilation fails due to an error on line 9.D
Compilation fails due to an error on line 14.E
An Exception is thrown with no other output.
考题
单选题11. public static void main（String[] args） { 12. Object obj = new Object（） { 13. public int hashCode（） { 14. returns 42； 15. } 16. }； 17. System.out.println（obj.hashCode（））； 18. } What is the result？ （）A
42B
An exception is thrown at runtime.C
Compilation fails because of an error on line 12.D
Compilation fails because of an error on line 16.E
Compilation fails because of an error on line 17.
考题
单选题Given： What is the result？（）A
If you define D e = new E（）， then e.bMethod（） invokes the version of bMethod（） defined in Line 5.B
If you define D e = （D）（new E（））， then e.bMethod（） invokes the version of bMethod（） defined in Line 5.C
Compilation fails because of an error in line 9.D
If you define D e = （D）（new E（））， then e.bMethod（） invokes the version of bMethod（） defined in Line 9.E
Compilation fails because of an error in line 3.F
Compilation fails because of an error in line 7.
考题
单选题package foo； import java.util.Vector； private class MyVector extends Vector { int i = 1； public MyVector（） { i = 2； } } public class MyNewVector extends MyVector { public MyNewVector（） { i = 4； } public static void main（String args[]） { MyVector v = new MyNewVector（）； } } What is the result？（）A
Compilation succeeds.B
Compilation fails because of an error at line 5.C
Compilation fails because of an error at line 6.D
Compilation fails because of an error at line 14.E
Compilation fails because of an error at line 17.
考题
单选题Click the Exhibit button. What is the result？（）A
Compilation of class A fails.B
Line 28 prints the value 3 to System.out.C
Line 28 prints the value 1 to System.out.D
A runtime error occurs when line 25 executes.E
Compilation fails because of an error on line 28.
考题
单选题Given： What is the result？（）A
CanadaB
null CanadaC
Canada nullD
Canada CanadaE
Compilation fails due to an error on line 26.
考题
单选题Given： 11. public static void main（String[] args） { 12. Object obj = new int[] { 1， 2， 3 }； 13. int[] someArray = （int[]）obj； 14. for （int i ： someArray） System.out.print（i + " "）； 15. } What is the result？ （）A
Compilation fails because of an error in line 13.B
A ClassCastException is thrown at runtime.C
1 2 3D
Compilation fails because of an error in line 14.E
Compilation fails because of an error in line 12.
考题
单选题Given： What is the result？（）A
X， followed by an Exception.B
No output， and an Exception is thrown.C
Compilation fails due to an error on line 14.D
Compilation fails due to an error on line 16.E
Compilation fails due to an error on line 17.
考题
单选题Given： What is the result？（）A
An Exception is thrown with no other outputB
followed by an ExceptionC
Compilation fails due to an error on line 9D
Compilation fails due to an error on line 14
考题
单选题What is the result？（）A
Compilation of class A fails.B
Line 28 prints the value 3 to System.out.C
Line 28 prints the value 1 to System.out.D
A runtime error occurs when line 25 executes.E
Compilation fails because of an error on line 28.
考题
单选题What is the result？（）A
Compilation succeeds.B
Compilation fails due to multiple errors.C
Compilation fails due to an error only on line 20.D
Compilation fails due to an error only on line 21.E
Compilation fails due to an error only on line 22.F
Compilation fails due to an error only on line 12.
考题
单选题What is the result？（）A
Compilation fails because of an error in line 3.B
Compilation fails because of an error in line 7.C
Compilation fails because of an error in line 9.D
If you define D e = new E（），then e.bMethod（） invokes the version of bMethod（） defined in Line 5.E
If you define D e = （D）（new E（）），then e.bMethod（） invokes the version of bMethod（） defined in Line 5.F
If you define D e = （D）（new E（）），then e.bMethod（） invokes the version of bMethod（） defined in Line 9.
考题
单选题23. Object [] myObjects = { 24. new integer（12）， 25. new String（”foo”）， 26. new integer（5）， 27. new Boolean（true） 28. }； 29. Arrays.sort（myObjects）； 30. for（ int i=0； i31. System.out.print（myObjects[i].toString（））； 32. System.out.print（” “）； 33. } What is the result？（）A
Compilation fails due to an error in line 23.B
Compilation fails due to an error in line 29.C
A ClassCastException occurs in line 29.D
A ClassCastException occurs in line 31.E
The value of all four objects prints in natural order.
考题
单选题Given: What is the result when method testIfA is invoked?（）A
TrueB
Not trueC
An exception is thrown at runtime.D
Compilation fails because of an error at line 12.E
Compilation fails because of an error at line 19.
考题
单选题Given: What is the result?（）A
The code runs with no output.B
An exception is thrown at runtime.C
Compilation fails because of an error in line 20.D
Compilation fails because of an error in line 21.E
Compilation fails because of an error in line 23.F
Compilation fails because of an error in line 25.
考题
单选题Given: What is the result?（）A
BB
The code runs with no output.C
Compilation fails because of an error in line 12.D
Compilation fails because of an error in line 15.E
Compilation fails because of an error in line 18.
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