更多“单选题Click the Exhibit button. What is the result?()A Value is: 8B Compilation fails.C Value is: 12D Value is: -12”相关问题
  • 第1题:

    1. public class SimpleCalc {  2. public int value;  3. public void calculate() { value += 7; }  4. } And:  1. public class MultiCalc extends SimpleCalc {  2. public void calculate() { value -= 3; }  3. public void calculate(int multiplier) {  4. calculate();  5. super.calculate();  6. value *=multiplier;  7. }  8. public static void main(String[] args) {  9. MultiCalc calculator = new MultiCalc();  10. calculator.calculate(2);  11. System.out.println(”Value is: “+ calculator.value);  12. }  13. }  What is the result?() 

    • A、 Value is: 8
    • B、 Compilation fails.
    • C、 Value is: 12
    • D、 Value is: -12
    • E、 The code runs with no output.
    • F、 An exception is thrown at runtime.

    正确答案:A

  • 第2题:

    12. String csv = “Sue,5,true,3”;  13. Scanner scanner = new Scanner( csv);  14. scanner.useDelimiter(”,”);  15. int age = scanner.nextInt();  What is the result?() 

    • A、 Compilation fails.
    • B、 After line 15, the value of age is 5.
    • C、 After line 15, the value of age is 3.
    • D、 An exception is thrown at runtime.

    正确答案:D

  • 第3题:

    public class Foo {  public int a;  public Foo() { a = 3; }  public void addFive() { a += 5; }  }  and:  public class Bar extends Foo { public int a;  public Bar() { a = 8; }  public void addFive() { this.a +=5; }  }  invoked with:  Foo foo = new Bar();  foo.addFive();  System.out.println(”Value: “+ foo.a);  What is the result?() 

    • A、 Value: 3
    • B、 Value: 8
    • C、 Value: 13
    • D、 Compilation fails.
    • E、 The code runs with no output.
    • F、 An exception is thrown at runtime.

    正确答案:A

  • 第4题:

    单选题
    Given a method that must ensure that its parameter is not null: 11. public void someMethod(Object value) { 12. // check for null value ... 20. System.out.println(value.getClass()); 21. } What inserted at line 12, is the appropriate way to handle a null value?()
    A

    assert value == null;

    B

    assert value != null, value is null;

    C

    if (value == null) { throw new AssertionException(value is null); }

    D

    if (value == null) { throw new IllegalArgumentException(value is null); }


    正确答案: C
    解析: 暂无解析

  • 第5题:

    单选题
    Click the Exhibit button. Given: ClassA a = new ClassA( ); a.methodA( ); What is the result? ()
    A

    Compilation fails.

    B

    ClassC is displayed.

    C

    The code runs with no output.

    D

    An exception is thrown at runtime.


    正确答案: B
    解析: 暂无解析

  • 第6题:

    单选题
    String foo = “blue”;    Booleanbar = new Boolean [1];    if (bar[0]) {    foo = “green”;    }   What is the result?()
    A

     Foo has the value of “”

    B

     Foo has the value of null.

    C

     Foo has the value of “blue”

    D

     Foo has the value of “green”

    E

     An exception is thrown.

    F

     The code will not compile.


    正确答案: E
    解析: 暂无解析

  • 第7题:

    单选题
    Click the Exhibit button.   Given this code from Class B:   25. A a1 = new A();   26. A a2 = new A();   27. A a3 = new A();   28. System.out.println(A.getInstanceCount());   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

     Compilation fails because of an error on line 28.

    E

     A runtime error occurs when line 25 executes.


    正确答案: E
    解析: 暂无解析

  • 第8题:

    单选题
    Examine the exhibit to view the parameters set in your parameter file. (Click the Exhibit(s) button.) You restart the instance. To what value will the MEMORY_MAX_TARGET parameter be set by default?()
    A

    120M

    B

    320M

    C

    480M

    D

    600M


    正确答案: D
    解析: 暂无解析

  • 第9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10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11题:

    单选题
    11. public void someMethod(Object value) {  12. // check for null value ....  20. System.out.println(value.getClass());  21. }  What, inserted at line 12, is the appropriate way to handle a null value?()
    A

     assert value == null;

    B

     assert value !null, “value is null”;

    C

     if (value == null) { throw new AssertionException(”value is null”);

    D

     if (value == null) { throw new IllegalArgumentException(”value is null”);


    正确答案: D
    解析: 暂无解析

  • 第12题:

    单选题
    public class ClassA {  public int getValue() {  int value=0;  boolean setting = true;  String title=”Hello”;  (value || (setting && title == “Hello”)) { return 1; }  (value == 1 & title.equals(”Hello”)) { return 2; }  }  } And:  ClassA a = new ClassA();  a.getValue();  What is the result?()
    A

     1

    B

     2

    C

     Compilation fails.

    D

     The code runs with no output.

    E

     An exception is thrown at runtime.


    正确答案: D
    解析: 暂无解析

  • 第13题:

    11. public void someMethod(Object value) {  12. // check for null value ....  20. System.out.println(value.getClass());  21. }  What, inserted at line 12, is the appropriate way to handle a null value?() 

    • A、 assert value == null;
    • B、 assert value !null, “value is null”;
    • C、 if (value == null) { throw new AssertionException(”value is null”);
    • D、 if (value == null) { throw new IllegalArgumentException(”value is null”);

    正确答案:D

  • 第14题:

    public class ClassA {  public int getValue() {  int value=0;  boolean setting = true;  String title=”Hello”;  (value || (setting && title == “Hello”)) { return 1; }  (value == 1 & title.equals(”Hello”)) { return 2; }  }  } And:  ClassA a = new ClassA();  a.getValue();  What is the result?() 

    • A、 1
    • B、 2
    • C、 Compilation fails.
    • D、 The code runs with no output.
    • E、 An exception is thrown at runtime.

    正确答案:C

  • 第15题:

    Examine the exhibit to view the parameters set in your parameter file. (Click the Exhibit(s) button.) You restart the instance. To what value will the MEMORY_MAX_TARGET parameter be set by default?()

    • A、120M
    • B、320M
    • C、480M
    • D、600M

    正确答案:D

  • 第16题:

    单选题
    public class Foo {  public int a;  public Foo() { a = 3; }  public void addFive() { a += 5; }  }  and:  public class Bar extends Foo { public int a;  public Bar() { a = 8; }  public void addFive() { this.a +=5; }  }  invoked with:  Foo foo = new Bar();  foo.addFive();  System.out.println(”Value: “+ foo.a);  What is the result?()
    A

     Value: 3

    B

     Value: 8

    C

     Value: 13

    D

     Compilation fails.

    E

     The code runs with no output.

    F

     An exception is thrown at runtime.


    正确答案: F
    解析: 暂无解析

  • 第17题:

    单选题
    Click the Exhibit button. Given this code from Class B: 25.A a1 = new A(); 26.A a2 = new A(); 27.A a3 = new A(); 28.System.out.println(A.getInstanceCount()); 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18题:

    单选题
    Click the Exhibit button.   Given: ClassA a = new ClassA();   a.methodA();   What is the result?()
    A

     The code runs with no output.

    B

     Compilation fails.

    C

     An exception is thrown at runtime.

    D

     ClassC is displayed.


    正确答案: C
    解析: 暂无解析

  • 第19题:

    单选题
    Click the Exhibit button. 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.


    正确答案: C
    解析: 暂无解析

  • 第20题:

    单选题
    1. public class SimpleCalc {  2. public int value;  3. public void calculate() { value += 7; }  4. } And:  1. public class MultiCalc extends SimpleCalc {  2. public void calculate() { value -= 3; }  3. public void calculate(int multiplier) {  4. calculate();  5. super.calculate();  6. value *=multiplier;  7. }  8. public static void main(String[] args) {  9. MultiCalc calculator = new MultiCalc();  10. calculator.calculate(2);  11. System.out.println(”Value is: “+ calculator.value);  12. }  13. }  What is the result?()
    A

     Value is: 8

    B

     Compilation fails.

    C

     Value is: 12

    D

     Value is: -12

    E

     The code runs with no output.

    F

     An exception is thrown at runtime.


    正确答案: A
    解析: 暂无解析

  • 第21题:

    单选题
    12. String csv = “Sue,5,true,3”;  13. Scanner scanner = new Scanner( csv);  14. scanner.useDelimiter(”,”);  15. int age = scanner.nextInt();  What is the result?()
    A

     Compilation fails.

    B

     After line 15, the value of age is 5.

    C

     After line 15, the value of age is 3.

    D

     An exception is thrown at runtime.


    正确答案: B
    解析: 暂无解析

  • 第22题:

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

    Compilation fails.

    B

    exception is thrown at runtime.

    C

    The attribute id in the ItemTest object remains unchanged.

    D

    The attribute id in the ItemTest object is modified to the new value.

    E

    A new ItemTest object is created with the preferred value in the id attribute.


    正确答案: A
    解析: 暂无解析

  • 第23题:

    单选题
    What is the result?()
    A

     foo has the value””

    B

     foo has the value null.

    C

     An exception is thrown.

    D

     The code will not compile.


    正确答案: B
    解析: 暂无解析