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多选题
10. class Inner {  11. private int x;  12. public void setX( int x) { this.x = x; }  13. public int getX() { return x; }  14. }  15.  16. class Outer {  17. private Inner y;  18. public void setY( Inner y) { this.y = y; }  19. public Inner getY() { return y; }  20. }  21.  22. public class Gamma {  23. public static void main( String[] args) { 24. Outer o = new Outer(); 25. Inner i = new Inner();  26.int n=10;  27. i.setX(n);  28. o.setY(i);  29. // insert code here  30. System.out.println( o.getY().getX());  31. }  32. }  Which three code fragments, added individually at line 29, produce the output 100?()
A

n = 100;

B

i.setX( 100);

C

o.getY().setX( 100);

D

i = new Inner(); i.setX( 100);

E

o.setY( i); i = new Inner(); i.setX( 100);

F

i = new Inner(); i.setX( 100); o.setY( i);


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更多 “多选题10. class Inner {  11. private int x;  12. public void setX( int x) { this.x = x; }  13. public int getX() { return x; }  14. }  15.  16. class Outer {  17. private Inner y;  18. public void setY( Inner y) { this.y = y; }  19. public Inner getY() { return y; }  20. }  21.  22. public class Gamma {  23. public static void main( String[] args) { 24. Outer o = new Outer(); 25. Inner i = new Inner();  26.int n=10;  27. i.setX(n);  28. o.setY(i);  29. // insert code here  30. System.out.println( o.getY().getX());  31. }  32. }  Which three code fragments, added individually at line 29, produce the output 100?()An = 100;Bi.setX( 100);Co.getY().setX( 100);Di = new Inner(); i.setX( 100);Eo.setY( i); i = new Inner(); i.setX( 100);Fi = new Inner(); i.setX( 100); o.setY( i);” 相关考题
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考题 单选题10. public class Foo implements java.io.Serializable {  11. private int x;  12. public int getX() { return x; }  12.publicFoo(int x){this.x=x; }  13. private void writeObject( ObjectOutputStream s)  14. throws IOException {  15. // insert code here  16. }  17. }  Which code fragment, inserted at line 15, will allow Foo objects to be correctly serialized and deserialized?()A  s.writeInt(x);B  s.serialize(x);C  s.writeObject(x);D  s.defaultWriteObject();

考题 单选题1. import java.io.*;  2. public class Foo implements Serializable {  3. public int x, y;  4. public Foo( int x, int y) { this.x = x; this.y = y; }  5.  6. private void writeObject( ObjectOutputStream s)  7. throws IOException {  8. s.writeInt(x); s.writeInt(y)  9. }  10.  11. private void readObject( ObjectInputStream s)  12. throws IOException, ClassNotFoundException {  13.  14. // insert code here  15.  16. }  17. }  Which code, inserted at line 14, will allow this class to correctly serialize and deserialize?()A  s.defaultReadObject();B  this = s.defaultReadObject();C  y = s.readInt(); x = s.readInt();D  x = s.readInt(); y = s.readInt();

考题 单选题public class SyncTest {  private int x;  private int y;  private synchronized void setX( int i ) { x = i; }  private synchronized void setY( int i ) { y = i; }  public void setXY( int i ) { setX(i); setY(i); }  public synchronized boolean check() { return x != y; }  }   Under which condition will check return true when called from a different class? ()A  check can never return true.B  check can return true when setXY is called by multiple threads.C  check can return true when multiple threads call setX and setY separately.D  check can return true only if SyncTest is changed to allow x and y to be set separately.

考题 多选题10. class Inner {  11. private int x;  12. public void setX( int x) { this.x = x; }  13. public int getX() { return x; }  14. }  15.  16. class Outer {  17. private Inner y;  18. public void setY( Inner y) { this.y = y; }  19. public Inner getY() { return y; }  20. }  21.  22. public class Gamma {  23. public static void main( String[] args) { 24. Outer o = new Outer(); 25. Inner i = new Inner();  26.int n=10;  27. i.setX(n);  28. o.setY(i);  29. // insert code here  30. System.out.println( o.getY().getX());  31. }  32. }  Which three code fragments, added individually at line 29, produce the output 100?()An = 100;Bi.setX( 100);Co.getY().setX( 100);Di = new Inner(); i.setX( 100);Eo.setY( i); i = new Inner(); i.setX( 100);Fi = new Inner(); i.setX( 100); o.setY( i);

考题 单选题public class SyncTest {  private int x;   private int y;   public synchronized void setX (int i) (x=1;)   public synchronized void setY (int i) (y=1;)   public synchronized void setXY(int 1)(set X(i); setY(i);)   public synchronized Boolean check() (return x !=y;)   }   Under which conditions will check () return true when called from a different class?A  Check() can never return true.B  Check() can return true when setXY is called by multiple threads.C  Check() can return true when multiple threads call setX and setY separately.D  Check() can only return true if SyncTest is changed to allow x and y to be set separately.