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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 

题目
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.


相似考题
参考答案和解析
正确答案: C
解析: 暂无解析
更多“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 ”相关问题
  • 第1题:

    public class Test {  public static void aMethod() throws Exception {  try {  throw new Exception(); } finally {  System.out.println(“finally”);  }  }  public static void main(String args[]) {  try {  aMethod();  } catch (Exception e) {  System.out.println(“exception”);  }  System.out.println(“finished”);  }  }  What is the result?()  

    • A、 finally
    • B、 exception finished
    • C、 finally exception finished
    • D、 Compilation fails.

    正确答案:C

  • 第2题:

    1. public class Test { 2. public static String output =””; 3.  4. public static void foo(int i) { 5. try { 6. if(i==1) { 7. throw new Exception(); 8. } 9. output += “1”; 10. } 11. catch(Exception e) { 12. output += “2”; 13. return; 14. } 15. finally { 16. output += “3”;17. } 18. output += “4”; 19. } 20.  21. public static void main(String args[]) { 22. foo(0); 23. foo(1); 24.  25. }26. } What is the value of the variable output at line 23?()


    正确答案:13423

  • 第3题:

    11. class Person {  12. String name = “No name‟;  13. public Person(String nm) { name = nm; }  14. }  15.  16. class Employee extends Person {  17. String emplD = “0000”;  18. public Employee(String id) { empID = id; }  19. }  20.  21. public class EmployeeTest {  22. public static void main(String[] args) {  23. Employee e = new Employee(”4321”);  24. System.out.println(e.empID);  25. }  26. }  What is the result?() 

    • A、 4321
    • B、 0000
    • C、 An exception is thrown at runtime.
    • D、 Compilation fails because of an error in line 18.

    正确答案:D

  • 第4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;

    正确答案:B

  • 第5题:

    11.classa {  12. public void process() { System.out.print(”a,”); } }  13. class b extends a {  14. public void process() throws IOException {  15. super.process();  16. System.out.print(”b,”);  17. throw new IOException();  18. } }  19. public static void main(String[] args) {  20. try { new b().process(); }  21. catch (IOException e) { System.out.println(”Exception”); } }  What is the result?() 

    • A、 Exception
    • B、 a,b,Exception
    • C、 Compilation fails because of an error in line 20.
    • D、 Compilation fails because of an error in line 14.
    • E、 A NullPointerException is thrown at runtime.

    正确答案:D

  • 第6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7题:

    单选题
    11. public static void append(List list) { list.add(”0042”); }  12. public static void main(String[] args) {  13. List intList = new ArrayList();  14. append(intList);  15. System.out.println(intList.get(0));  16. }  What is the result?()
    A

     42

    B

     0042

    C

     An exception is thrown at runtime.

    D

     Compilation fails because of an error in line 13.

    E

     Compilation fails because of an error in line 14.


    正确答案: B
    解析: 暂无解析

  • 第8题:

    单选题
    11. class Person {  12. String name = “No name‟;  13. public Person(String nm) { name = nm; }  14. }  15.  16. class Employee extends Person {  17. String emplD = “0000”;  18. public Employee(String id) { empID = id; }  19. }  20.  21. public class EmployeeTest {  22. public static void main(String[] args) {  23. Employee e = new Employee(”4321”);  24. System.out.println(e.empID);  25. }  26. }  What is the result?()
    A

     4321

    B

     0000

    C

     An exception is thrown at runtime.

    D

     Compilation fails because of an error in line 18.


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    11.classA {  12. public void process() { System.out.print(”A “); } }  13. class B extends A {  14. public void process() throws RuntimeException {  15. super.process();  16. if (true) throw new RuntimeException();  17. System.out.print(“B”); }}  18. public static void main(String[] args) {  19. try { ((A)new B()).process(); }  20. catch (Exception e) { System.out.print(”Exception “); }  21. }  What is the result?()
    A

     Exception

    B

     A Exception

    C

     A Exception B

    D

     A B Exception

    E

     Compilation fails because of an error in line 14.

    F

     Compilation fails because of an error in line 19.


    正确答案: F
    解析: 暂无解析

  • 第10题:

    单选题
    class TestA {  public void start() { System.out.println(”TestA”); }  }  public class TestB extends TestA {  public void start() { System.out.println(”TestB”); } public static void main(String[] args) {  ((TestA)new TestB()).start();  }  }  What is the result?()
    A

     TestA

    B

     TestB

    C

     Compilation fails.

    D

     An exception is thrown at runtime.


    正确答案: C
    解析: 暂无解析

  • 第11题:

    单选题
    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. new B().process();  19. }  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: D
    解析: 暂无解析

  • 第12题:

    单选题
    11.classa {  12. public void process() { System.out.print(”a,”); } }  13. class b extends a {  14. public void process() throws IOException {  15. super.process();  16. System.out.print(”b,”);  17. throw new IOException();  18. } }  19. public static void main(String[] args) {  20. try { new b().process(); }  21. catch (IOException e) { System.out.println(”Exception”); } }  What is the result?()
    A

     Exception

    B

     a,b,Exception

    C

     Compilation fails because of an error in line 20.

    D

     Compilation fails because of an error in line 14.

    E

     A NullPointerException is thrown at runtime.


    正确答案: C
    解析: 暂无解析

  • 第13题:

    11. class Converter {  12. public static void main(String[] args) {  13. Integer i = args[0];  14. int j = 12;  15. System.out.println(”It is “ + (j==i) + “that j==i.”);  16. }  17. }  What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?() 

    • A、 It is true that j==i.
    • B、 It is false that j==i.
    • C、 An exception is thrown at runtime.
    • D、 Compilation fails because of an error in line 13.

    正确答案:D

  • 第14题:

    11.classA {  12. public void process() { System.out.print(”A “); } }  13. class B extends A {  14. public void process() throws RuntimeException {  15. super.process();  16. if (true) throw new RuntimeException();  17. System.out.print(“B”); }}  18. public static void main(String[] args) {  19. try { ((A)new B()).process(); }  20. catch (Exception e) { System.out.print(”Exception “); }  21. }  What is the result?() 

    • A、 Exception
    • B、 A Exception
    • C、 A Exception B
    • D、 A B Exception
    • E、 Compilation fails because of an error in line 14.
    • F、 Compilation fails because of an error in line 19.

    正确答案:B

  • 第15题:

    public class Starter extends Thread {  private int x= 2;  public static void main(String[] args) throws Exception {  new Starter().makeItSo();  }  public Starter() {  x=5;  start();  }  public void makeItSo() throws Exception {  join();  x=x- 1;  System.out.println(x);  }  public void run() { x *= 2; }  }  What is the output if the main() method is rum?() 

    • A、 4
    • B、 5
    • C、 8
    • D、 9
    • E、 Compilation fails.
    • F、 An exception is thrown at runtime.
    • G、 It is impossible to determine for certain.

    正确答案:D

  • 第16题:

    11. public static void append(List list) { list.add(”0042”); }  12. public static void main(String[] args) {  13. List intList = new ArrayList();  14. append(intList);  15. System.out.println(intList.get(0));  16. }  What is the result?() 

    • A、 42
    • B、 0042
    • C、 An exception is thrown at runtime.
    • D、 Compilation fails because of an error in line 13.
    • E、 Compilation fails because of an error in line 14.

    正确答案:B

  • 第17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18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19题:

    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;


    正确答案: C
    解析: 暂无解析

  • 第20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21题:

    单选题
    public class Starter extends Thread {  private int x= 2;  public static void main(String[] args) throws Exception {  new Starter().makeItSo();  }  public Starter() {  x=5;  start();  }  public void makeItSo() throws Exception {  join();  x=x- 1;  System.out.println(x);  }  public void run() { x *= 2; }  }  What is the output if the main() method is rum?()
    A

     4

    B

     5

    C

     8

    D

     9

    E

     Compilation fails.

    F

     An exception is thrown at runtime.

    G

     It is impossible to determine for certain.


    正确答案: D
    解析: 暂无解析

  • 第22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23题:

    单选题
    public class Test {  public static void aMethod() throws Exception {  try {  throw new Exception(); } finally {  System.out.println(“finally”);  }  }  public static void main(String args[]) {  try {  aMethod();  } catch (Exception e) {  System.out.println(“exception”);  }  System.out.println(“finished”);  }  }  What is the result?()
    A

     finally

    B

     exception finished

    C

     finally exception finished

    D

     Compilation fails.


    正确答案: C
    解析: 暂无解析

  • 第24题:

    单选题
    11. class Converter {  12. public static void main(String[] args) {  13. Integer i = args[0];  14. int j = 12;  15. System.out.println(”It is “ + (j==i) + “that j==i.”);  16. }  17. }  What is the result when the programmer attempts to compile the code and run it with the command java Converter 12?()
    A

     It is true that j==i.

    B

     It is false that j==i.

    C

     An exception is thrown at runtime.

    D

     Compilation fails because of an error in line 13.


    正确答案: D
    解析: 暂无解析