相关考题

单项选择题 public class Test {  public static void leftshift(int i, int j) {  i<<=j;  }  public static void main(String args[])  {  int i = 4, j = 2;  leftshift(i, j);   System.out.printIn(i); }  }     What is the result?()

单项选择题 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?

单项选择题 1. public class X implements Runnable(  2. private int x;  3. private int y;  4.    5. public static void main(String[]args)  6. X that = new X();  7. (new Thread(that)).start();  8. (new Thread(that)).start();  9. )  10.    11. public void run()  (  12. for (;;)  (  13. x++; 14. y++;  15. System.out.printIn(“x=” + x + “, y = ” + y);  16.     ) 17. ) What is the result?()