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单选题Given: What is the result?()ACanadaBnull CanadaCCanada nullDCanada CanadaECompilation fails due to an error on line 26.FCompilation fails due to an error on line 29.

题目
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.”相关问题
  • 第1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.

    正确答案:B

  • 第2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、 test
    • B、 null
    • C、 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.

    正确答案:A

  • 第3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.


    正确答案: C
    解析: 暂无解析

  • 第4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.


    正确答案: E
    解析: 暂无解析

  • 第5题:

    单选题
    Given: What is the result?()
    A

    B

    B

    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.


    正确答案: B
    解析: 暂无解析

  • 第6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.


    正确答案: C
    解析: 暂无解析

  • 第7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.


    正确答案: D
    解析: 暂无解析

  • 第8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 3

    D

     Compilation fails because of an error in line 14.

    E

     Compilation fails because of an error in line 12.


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    Given: What is the result?()
    A

    An Exception is thrown with no other output

    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


    正确答案: C
    解析: 暂无解析

  • 第10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.


    正确答案: B
    解析: 暂无解析

  • 第11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.


    正确答案: D
    解析: 暂无解析

  • 第12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.


    正确答案: F
    解析: 暂无解析

  • 第13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、123
    • B、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.

    正确答案:A

  • 第14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、 B
    • D、 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.

    正确答案:A

  • 第15题:

    单选题
    Given: What is the result?()
    A

    test

    B

    null

    C

    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.


    正确答案: B
    解析: 暂无解析

  • 第16题:

    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.


    正确答案: A
    解析: 暂无解析

  • 第17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

     42

    B

     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.


    正确答案: B
    解析: 暂无解析

  • 第18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.


    正确答案: C
    解析: 暂无解析

  • 第19题:

    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.


    正确答案: A
    解析: 暂无解析

  • 第20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.


    正确答案: B
    解析: 暂无解析

  • 第21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.


    正确答案: E
    解析: 暂无解析

  • 第22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.


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    Given: What is the result when method testIfA is invoked?()
    A

    True

    B

    Not true

    C

    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.


    正确答案: B
    解析: 暂无解析

  • 第24题:

    单选题
    Given: What is the result?()
    A

    B

    B

    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.


    正确答案: A
    解析: 暂无解析