单选题11.rbo = new ReallyBigObject(); 12.//more code here 13.rbo = null; 14./*insert code here*/ Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the objectrbo?()A System.gc();B

题目
单选题
11.rbo = new ReallyBigObject(); 12.//more code here 13.rbo = null; 14./*insert code here*/ Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the objectrbo?()
A

System.gc();

B

Runtime.gc();

C

System.freeMemory();

D

Runtime.getRuntime().growHeap();

E

Runtime.getRuntime().freeMemory();


相似考题
更多“单选题11.rbo = new ReallyBigObject(); 12.//more code here 13.rbo = null; 14./*insert code here*/ Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the objectrbo?()A System.gc();B”相关问题
  • 第1题:

    11. public class Counter {  12. public static void main(String[] args) {  13. int numArgs = /* insert code here */;  14. }  15. }  and the command line: java Counter one fred 42 Which code, inserted at line 13, captures the number of arguments passed into the program?() 

    • A、 args.count
    • B、 args.length
    • C、 args.count()
    • D、 args.length()
    • E、 args.getLength()

    正确答案:B

  • 第2题:

    11. public interface Status {  12. /* insert code here */ int MY_VALUE = 10;  13. }  Which three are valid on line 12?()

    • A、 final
    • B、 static
    • C、 native
    • D、 public
    • E、 private
    • F、 abstract
    • G、 protected

    正确答案:A,B,D

  • 第3题:

    11.rbo = new ReallyBigObject(); 12.//more code here 13.rbo = null; 14./*insert code here*/ Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the objectrbo?()

    • A、System.gc();
    • B、Runtime.gc();
    • C、System.freeMemory();
    • D、Runtime.getRuntime().growHeap();
    • E、Runtime.getRuntime().freeMemory();

    正确答案:A

  • 第4题:

    11. rbo = new ReallyBigObject();  12. // more code here  13. rbo = null;  14. /* insert code here */  Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the object rbo?() 

    • A、 System.gc();
    • B、 Runtime.gc();
    • C、 System.freeMemory();
    • D、 Runtime.getRuntime().growHeap();
    • E、 Runtime.getRuntime().freeMemory();

    正确答案:A

  • 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:

    多选题
    Given: 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: D,B
    解析: 暂无解析

  • 第8题:

    单选题
    10. class Nav{  11. public enum Direction { NORTH, SOUTH, EAST, WEST }  12. }  13. public class Sprite{  14. // insert code here  15. }  Which code, inserted at line 14, allows the Sprite class to compile?()
    A

     Direction d = NORTH;

    B

     Nav.Direction d = NORTH;

    C

     Direction d = Direction.NORTH;

    D

     Nav.Direction d = Nav.Direction.NORTH;


    正确答案: D
    解析: 暂无解析

  • 第9题:

    多选题
    Given 11.public interface Status { 12./* insert code here */ int MY_VALUE = 10; 13.} Which three are valid on line 12?()
    A

    final

    B

    static

    C

    native

    D

    public

    E

    private


    正确答案: B,C
    解析: 暂无解析

  • 第10题:

    单选题
    11. double input = 314159.26;  12. NumberFormat nf= NumberFormat.getInstance(Locale.ITALIAN);  13. String b;  14. //insert code here  Which code, inserted at line 14, sets the value of b to 3 14.159,26?()
    A

     b = nf.parse( input);

    B

     b = nf.format( input);

    C

     b = nf.equals( input);

    D

     b = nf.parseObject( input);


    正确答案: D
    解析: 暂无解析

  • 第11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12题:

    多选题
    14. DateFormat df;  15. Date date = new Date();  16. //insert code here  17. String s = df.format( date);  Which two,inserted independently at line 16, allow the code to compile?()
    A

    df= new DateFormat();

    B

    df= Date.getFormatter();

    C

    df= date.getFormatter();

    D

    df= date.getDateFormatter();

    E

    df = DateFormat.getDateInstance();

    F

    df= DateFormat.getInstance();


    正确答案: E,F
    解析: 暂无解析

  • 第13题:

    10. class Nav{  11. public enum Direction { NORTH, SOUTH, EAST, WEST }  12. }  13. public class Sprite{  14. // insert code here  15. }  Which code, inserted at line 14, allows the Sprite class to compile?() 

    • A、 Direction d = NORTH;
    • B、 Nav.Direction d = NORTH;
    • C、 Direction d = Direction.NORTH;
    • D、 Nav.Direction d = Nav.Direction.NORTH;

    正确答案:D

  • 第14题:

    11. double input = 314159.26;  12. NumberFormat nf= NumberFormat.getInstance(Locale.ITALIAN);  13. String b;  14. //insert code here  Which code, inserted at line 14, sets the value of b to 3 14.159,26?() 

    • A、 b = nf.parse( input);
    • B、 b = nf.format( input);
    • C、 b = nf.equals( input);
    • D、 b = nf.parseObject( input);

    正确答案:B

  • 第15题:

    14. DateFormat df;  15. Date date = new Date();  16. //insert code here  17. String s = df.format( date);  Which two,inserted independently at line 16, allow the code to compile?()

    • A、 df= new DateFormat();
    • B、 df= Date.getFormatter();
    • C、 df= date.getFormatter();
    • D、 df= date.getDateFormatter();
    • E、df = DateFormat.getDateInstance();
    • F、 df= DateFormat.getInstance();

    正确答案:E,F

  • 第16题:

    10. class Line {  11. public class Point { public int x,y; }  12. public Point getPoint() { return new Point(); }  13. }  14. class Triangle {  15. public Triangle() {  16. // insert code here  17. }  18. }  Which code, inserted at line 16, correctly retrieves a local instance of a Point object?() 

    • A、 Point p = Line.getPoint();
    • B、 Line.Point p = Line.getPoint();
    • C、 Point p = (new Line()).getPoint();
    • D、 Line.Point p = (new Line()).getPoint();

    正确答案:D

  • 第17题:

    Given 11.public interface Status { 12./* insert code here */ int MY_VALUE = 10; 13.} Which three are valid on line 12?()

    • A、final
    • B、static
    • C、native
    • D、public
    • E、private

    正确答案:A,B,D

  • 第18题:

    单选题
    11. public class Counter {  12. public static void main(String[] args) {  13. int numArgs = /* insert code here */;  14. }  15. }  and the command line: java Counter one fred 42 Which code, inserted at line 13, captures the number of arguments passed into the program?()
    A

     args.count

    B

     args.length

    C

     args.count()

    D

     args.length()

    E

     args.getLength()


    正确答案: C
    解析: 暂无解析

  • 第19题:

    单选题
    11. rbo = new ReallyBigObject();  12. // more code here  13. rbo = null;  14. /* insert code here */  Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the object rbo?()
    A

     System.gc();

    B

     Runtime.gc();

    C

     System.freeMemory();

    D

     Runtime.getRuntime().growHeap();

    E

     Runtime.getRuntime().freeMemory();


    正确答案: A
    解析: 暂无解析

  • 第20题:

    多选题
    Given:   11. // insert code here   12. private N min, max;   13. public N getMin() { return min; }   14. public N getMax() { return max; }   15. public void add(N added) {   16. if (min == null || added.doubleValue()  max.doubleValue())  19. max = added;   20. }   21. }   Which two, inserted at line 11, will allow the code to compile?()
    A

    A

    B

    B

    C

    C

    D

    D

    E

    E

    F

    F


    正确答案: B,A
    解析: 暂无解析

  • 第21题:

    单选题
    10. class Line {  11. public class Point { public int x,y; }  12. public Point getPoint() { return new Point(); }  13. }  14. class Triangle {  15. public Triangle() {  16. // insert code here  17. }  18. }  Which code, inserted at line 16, correctly retrieves a local instance of a Point object?()
    A

     Point p = Line.getPoint();

    B

     Line.Point p = Line.getPoint();

    C

     Point p = (new Line()).getPoint();

    D

     Line.Point p = (new Line()).getPoint();


    正确答案: A
    解析: 暂无解析

  • 第22题:

    单选题
    10. class Line {  11. public static class Point { }  12. }  13.  14. class Triangle {  15. // insert code here  16. }  Which code, inserted at line 15, creates an instance of the Point class defined in Line?()
    A

     Point p = new Point();

    B

     Line.Point p = new Line.Point();

    C

     The Point class cannot be instatiated at line 15.

    D

     Line 1 = new Line() ; 1.Point p = new 1.Point();


    正确答案: B
    解析: 暂无解析

  • 第23题:

    多选题
    11. public interface Status {  12. /* insert code here */ int MY_VALUE = 10;  13. }  Which three are valid on line 12?()
    A

    final

    B

    static

    C

    native

    D

    public

    E

    private

    F

    abstract

    G

    protected


    正确答案: G,A
    解析: 暂无解析