niusouti.com

单选题Given: What is the result?()AtestBnullCAn exception is thrown at runtime.DCompilation fails because of an error in line 1.ECompilation fails because of an error in line 4.FCompilation fails because of an error in line 5.

题目
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.


相似考题
参考答案和解析
正确答案: B
解析: 暂无解析
更多“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.”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:

    class A {  public byte getNumber() {  return 1;  }  }  class B extends A {  public short getNumber() {  return 2;  }  public static void main(String args[]) {  B b = new B();  System.out.println(b.getNumber()); }  }   What is the result?()

    • A、 1
    • B、 2
    • C、 An exception is thrown at runtime.
    • D、 Compilation fails because of an error in line 8.
    • E、 Compilation fails because of an error in line 14.

    正确答案:D

  • 第3题:

    11. static classA {  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、 B
    • B、 The code runs with no output.
    • C、 An exception is thrown at runtime.
    • D、 Compilation fails because of an error in line 15.
    • E、 Compilation fails because of an error in line 18.
    • F、 Compilation fails because of an error in line 19.

    正确答案:F

  • 第4题:

    单选题
    class A {  public byte getNumber() {  return 1;  }  }  class B extends A {  public short getNumber() {  return 2;  }  public static void main(String args[]) {  B b = new B();  System.out.println(b.getNumber()); }  }   What is the result?()
    A

     1

    B

     2

    C

     An exception is thrown at runtime.

    D

     Compilation fails because of an error in line 8.

    E

     Compilation fails because of an error in line 14.


    正确答案: D
    解析: getNumber() in B cannot override getNumber() in A; attempting to use incompatible return type: short to byte. 

  • 第5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6题:

    单选题
    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

     1 2 3

    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: C
    解析: 暂无解析

  • 第7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8题:

    单选题
    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: E
    解析: 暂无解析

  • 第9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10题:

    单选题
    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
    解析: 暂无解析

  • 第11题:

    单选题
    10. interface A { void x(); }  11. class B implements A { public void x() { } public voidy() { } }  12. class C extends B { public void x() {} }  And:  20. java.util.List list = new java.util.ArrayList();  21. list.add(new B());  22. list.add(new C());  23. for (A a:list) {  24. a.x();  25. a.y();;  26. }  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12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

  • 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:

    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15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16题:

    单选题
    11. static classA {  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

     B

    B

     The code runs with no output.

    C

     An exception is thrown at runtime.

    D

     Compilation fails because of an error in line 15.

    E

     Compilation fails because of an error in line 18.

    F

     Compilation fails because of an error in line 19.


    正确答案: B
    解析: 暂无解析

  • 第17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18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19题:

    单选题
    11. public static void main(String[] args) {  12. Integer i = uew Integer(1) + new Integer(2);  13. switch(i) {  14. case 3: System.out.println(”three”); break;  15. default: System.out.println(”other”); break;  16. }  17. }  What is the result?()
    A

     three

    B

     other

    C

     An exception is thrown at runtime.

    D

     Compilation fails because of an error on line 12.

    E

     Compilation fails because of an error on line 13.

    F

     Compilation fails because of an error on line 15.


    正确答案: B
    解析: 暂无解析

  • 第20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21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22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23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