单选题Given: 5.public class MyTagHandler extends TagSupport { 6.public int doStartTag() throws JspException { 7.try { 8.// insert code here 9.} catch(Exception ex) { /* handle exception */ } 10.return super.doStartTag(); 11.}...42. } Which code snippet, inse

题目
单选题
Given: 5.public class MyTagHandler extends TagSupport { 6.public int doStartTag() throws JspException { 7.try { 8.// insert code here 9.} catch(Exception ex) { /* handle exception */ } 10.return super.doStartTag(); 11.}...42. } Which code snippet, inserted at line 8,causes the value foo to be output?()
A

JspWriter w = pageContext.getOut();

B

print(foo);

C

JspWriter w = pageContext.getWriter();

D

JspWriter w = new JspWriter(pageContext.getWriter()); . w.print(foo);


相似考题
更多“单选题Given: 5.public class MyTagHandler extends TagSupport { 6.public int doStartTag() throws JspException { 7.try { 8.// insert code here 9.} catch(Exception ex) { /* handle exception */ } 10.return super.doStartTag(); 11.}...42. } Which code snippet, inse”相关问题
  • 第1题:

    1.class TestSuper { 22.TestSuper(int i) { } 3. } 4.class TestSub extends TestSuper{ } 5.class TestAll { 6.public static void main (String [] args) { 7.new TestSub(); 8.} 9.} Which is true?()  

    • A、 Compilation fails.
    • B、 The code runs without exception.
    • C、 An exception is thrown at line 7.
    • D、 An exception is thrown at line 2.

    正确答案:A

  • 第2题:

    31. // some code here  32. try {  33. // some code here  34. } catch (SomeException se) {  35. // some code here  36. } finally {  37. // some code here  38. }  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.

    正确答案:B,C,E

  • 第3题:

    public class ExceptionTest {   class TestException extends Exception {}   public void runTest () throws TestException {}   public void test () /* Point X*/ {   runTest ();   }   }   At point X on line 4, which code can be added to make the code compile?()  

    • A、 Throws Exception.
    • B、 Catch (Exception e).
    • C、 Throws RuntimeException.
    • D、 Catch (TestException e).
    • E、 No code is necessary.

    正确答案:B

  • 第4题:

    Given the JSP code: <% request.setAttribute("foo", "bar"); %>and the Classic tag handler code: 5. public int doStartTag() throws JspException { 6. // insert code here 7. // return int 8. } Assume there are no other "foo" attributes in the web application. Which invocation on the pageContextobject,inserted at line 6,assigns "bar" to the variable x?()

    • A、String x = (String) pageContext.getAttribute("foo")
    • B、String x = (String) pageContext.getRequestScope("foo")
    • C、It is NOT possible to access the pageContext object from within doStartTag
    • D、String x = (String) pageContext.getRequest().getAttribute("foo")
    • E、String x = (String) pageContext.getAttribute("foo", PageContext.ANY_SCOPE)

    正确答案:D

  • 第5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?()

    • A、 public void foo() { /* more code here */ }
    • B、 private void foo() { /* more code here */ }
    • C、 protected void foo() { /* more code here */ }
    • D、 int foo() { /* more code here */ }  
    • E、 void foo() { /* more code here */ }

    正确答案:A,C,E

  • 第6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?()
    A

    public void foo() { /* more code here */ }

    B

    private void foo() { /* more code here */ }

    C

    protected void foo() { /* more code here */ }

    D

    int foo() { /* more code here */ }

    E

    void foo() { /* more code here */ }


    正确答案: A,C,E
    解析: 暂无解析

  • 第7题:

    单选题
    1. public class a {  2. public void method1() {  3. try {  4. B b=new b();  5. b.method2();  6. // more code here  7. } catch (TestException te) {  8. throw new RuntimeException(te);  9. }  10. }  11. }  1. public class b {  2. public void method2() throws TestException {  3. // more code here  4. }  5. }  1. public class TestException extends Exception {  2. }  Given:  31. public void method() {  32. A a=new a();  33. a.method1();  34. }  Which is true if a TestException is thrown on line 3 of class b?()
    A

     Line 33 must be called within a try block.

    B

     The exception thrown by method1 in class a is not required to be caught.

    C

     The method declared on line 31 must be declared to throw a RuntimeException.

    D

     On line 5 of class a, the call to method2 of class b does not need to be placed in a try/catch block.


    正确答案: A
    解析: 暂无解析

  • 第8题:

    单选题
    Given: 5.public class MyTagHandler extends TagSupport { 6.public int doStartTag() throws JspException { 7.try { 8.// insert code here 9.} catch(Exception ex) { /* handle exception */ } 10.return super.doStartTag(); 11.}...42. } Which code snippet, inserted at line 8,causes the value foo to be output?()
    A

    JspWriter w = pageContext.getOut();

    B

    print(foo);

    C

    JspWriter w = pageContext.getWriter();

    D

    JspWriter w = new JspWriter(pageContext.getWriter()); . w.print(foo);


    正确答案: B
    解析: 暂无解析

  • 第9题:

    多选题
    31. // some code here  32. try {  33. // some code here  34. } catch (SomeException se) {  35. // some code here  36. } finally {  37. // some code here  38. }  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.


    正确答案: A,C
    解析: 暂无解析

  • 第10题:

    单选题
    1. class Exc0 extends Exception { }  2. class Exc1 extends Exc0 { }  3. public class Test {  4. public static void main(String args[]) {  5. try {  6. throw new Exc1();  7. } catch (Exc0 e0) {  8. System.out.println(“Ex0 caught”);  9. } catch (Exception e) {  10. System.out.println(“exception caught”);  11. }  12. }  13. }  What is the result?()
    A

     Ex0 caught

    B

     exception caught

    C

     Compilation fails because of an error at line 2.

    D

     Compilation fails because of an error at line 6.


    正确答案: A
    解析: 暂无解析

  • 第11题:

    单选题
    Which statements, when inserted at the indicated position in the following code, will cause a runtime exception when attempting to run the program?()   class A {}   class B extends A {}   class C extends A {}   public class Q3ae4 {   public static void main(String args[]) {   A x = new A();   B y = new B();   C z = new C();   // insert statement here   }   }
    A

    x = y;

    B

    z = x;

    C

    y = (B) x;

    D

    z = (C) y;

    E

    y = (A) y;


    正确答案: E
    解析: 暂无解析

  • 第12题:

    多选题
    Class TestException  1. public class TestException extends Exception {  2. } Class a:  1. public class a {  2.  3. public String sayHello(String name) throws TestException {  4.  5. if(name == null) {  6. throw new TestException();  7. }  8.  9. return “Hello “+ name;  10. }  11.  12. }  A programmer wants to use this code in an application: 45. A a=new A();  46. System.out.println(a.sayHello(”John”));  Which two are true?()
    A

    Class a will not compile.

    B

    Line 46 can throw the unchecked exception TestException.

    C

    Line 45 can throw the unchecked exception TestException.

    D

    Line 46 will compile if the enclosing method throws a TestException.

    E

    Line 46 will compile if enclosed in a try block, where TestException is caught.


    正确答案: D,E
    解析: 暂无解析

  • 第13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 */ }

    正确答案:B,C,E

  • 第14题:

    1. public class Exception Test {  2. class TestException extends Exception {}  3. public void runTest() throws TestException {}  4. public void test() /* Point X */ {  5. runTest();  6. }  7. }  At Point X on line 4, which code is necessary to make the code compile?()  

    • A、 No code is necessary.
    • B、 throws Exception
    • C、 catch ( Exception e )
    • D、 throws RuntimeException
    • E、 catch ( TestException e)

    正确答案:B

  • 第15题:

    Given: 5.public class MyTagHandler extends TagSupport { 6.public int doStartTag() throws JspException { 7.try { 8.// insert code here 9.} catch(Exception ex) { /* handle exception */ } 10.return super.doStartTag(); 11.}...42. } Which code snippet, inserted at line 8,causes the value foo to be output?()

    • A、JspWriter w = pageContext.getOut();
    • B、print("foo");
    • C、JspWriter w = pageContext.getWriter();
    • D、JspWriter w = new JspWriter(pageContext.getWriter()); . w.print("foo");

    正确答案:A

  • 第16题:

    1. class Exc0 extends Exception { }  2. class Exc1 extends Exc0 { }  3. public class Test {  4. public static void main(String args[]) {  5. try {  6. throw new Exc1();  7. } catch (Exc0 e0) {  8. System.out.println(“Ex0 caught”);  9. } catch (Exception e) {  10. System.out.println(“exception caught”);  11. }  12. }  13. }  What is the result?()  

    • A、 Ex0 caught
    • B、 exception caught
    • C、 Compilation fails because of an error at line 2.
    • D、 Compilation fails because of an error at line 6.

    正确答案:A

  • 第17题:

    单选题
    1.class TestSuper { 22.TestSuper(int i) { } 3. } 4.class TestSub extends TestSuper{ } 5.class TestAll { 6.public static void main (String [] args) { 7.new TestSub(); 8.} 9.} Which is true?()
    A

     Compilation fails.

    B

     The code runs without exception.

    C

     An exception is thrown at line 7.

    D

     An exception is thrown at line 2.


    正确答案: D
    解析: 暂无解析

  • 第18题:

    单选题
    1. public class Exception Test {  2. class TestException extends Exception {}  3. public void runTest() throws TestException {}  4. public void test() /* Point X */ {  5. runTest();  6. }  7. }  At Point X on line 4, which code is necessary to make the code compile?()
    A

     No code is necessary.

    B

     throws Exception

    C

     catch ( Exception e )

    D

     throws RuntimeException

    E

     catch ( TestException e)


    正确答案: E
    解析: 暂无解析

  • 第19题:

    单选题
    What is wrong with the following code?()   class MyException extends Exception {}   public class Qb4ab {   public void foo() {  try {  bar();  } finally {  baz();   } catch (MyException e) {}  }   public void bar() throws MyException {   throw new MyException();  }   public void baz() throws RuntimeException {   throw new RuntimeException();   }   }
    A

    Since the method foo() does not catch the exception generated by the method baz(), it must      declare the RuntimeException in its throws clause.

    B

    A try block cannot be followed by both a catch and a finally block.

    C

    An empty catch block is not allowed.

    D

    A catch block cannot follow a finally block.

    E

    A finally block must always follow one or more catch blocks.


    正确答案: B
    解析: 暂无解析

  • 第20题:

    单选题
    现有:  5.  class Order2 implements Runnable  {     6.    public void run()  {     7. for (int x- o;  x<4;  x++)  {  8. try{Thread.sleep(100);  )catch  (Exception e)  {  }     9.    System.out.print("r");     10.    }  }  11.    public static void main(string  []  args)  {     12.    Thread t=new Thread(new order2());     13.    t.start();  14.    for(int x=0;  x<4;  x++)  {     15.    //insert code here     16.    System.out.print("m");     17.  }  }  }  哪一个插入到第15行,最有可能产生输出 rmrmrmrm?()
    A

      Thread.sleep(1);

    B

      Thread.sleep(100);

    C

      Thread.sleep(1000);

    D

      try{  Thread.sleep(1);  )  catch  (Exception e)  {  }

    E

      try{Thread.sleep(100);  )  catch  (Exception  e)  {  }

    F

      try{Thread.sleep(1000);  )  catch  (Exception  e)  { }


    正确答案: B
    解析: 暂无解析

  • 第21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?()
    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 */ }


    正确答案: C,D
    解析: 暂无解析

  • 第22题:

    单选题
    public class ExceptionTest {  class TestException extends Exception {}  public void runTest () throws TestException {}  public void test () /* Point X*/  {  runTest ();  }  }   At point X on line 4, which code can be added to make the code compile?()
    A

     Throws Exception.

    B

     Catch (Exception e).

    C

     Throws RuntimeException.

    D

     Catch (TestException e).

    E

     No code is necessary.


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    Given the JSP code: and the Classic tag handler code: 5. public int doStartTag() throws JspException { 6. // insert code here 7. // return int 8. } Assume there are no other "foo" attributes in the web application. Which invocation on the pageContextobject,inserted at line 6,assigns "bar" to the variable x?()
    A

    String x = (String) pageContext.getAttribute(foo)

    B

    String x = (String) pageContext.getRequestScope(foo)

    C

    It is NOT possible to access the pageContext object from within doStartTag

    D

    String x = (String) pageContext.getRequest().getAttribute(foo)

    E

    String x = (String) pageContext.getAttribute(foo, PageContext.ANY_SCOPE)


    正确答案: B
    解析: 暂无解析

  • 第24题:

    单选题
    Given the JSP code: and the Classic tag handler code: 5. public int doStartTag() throws JspException { 6. // insert code here 7. // return int 8. } Assume there are no other "foo" attributes in the web application. Which invocation on the pageContextobject,inserted at line 6,assigns "bar" to the variable x?()
    A

    String x = (String) pageContext.getAttribute(foo)

    B

    String x = (String) pageContext.getRequestScope(foo)

    C

    It is NOT possible to access the pageContext object from within doStartTag

    D

    String x = (String) pageContext.getRequest().getAttribute(foo)

    E

    String x = (String) pageContext.getAttribute(foo, PageContext.ANY_SCOPE)


    正确答案: C
    解析: 暂无解析