public class X implements Runnable ( private int x; private int y; public static void main(String [] args) ( X that = new X(); (new Thread(that)) . start( ); (new Thread(that)) . start( ); ) public synchronized void run( ) ( for (;;) ( x++; y++; System.out.printIn(“x = “ + x + “, y = “ + y); ) ) ) What is the result?()
A.
An error at line 11 causes compilation to fail.
B.
Errors at lines 7 and 8 cause compilation to fail.
C.
The program prints pairs of values for x and y that might not always be the same on the same line (for example, “x=2, y=1”)
D.
The program prints pairs of values for x and y that are always the same on the same line (for example, “x=1, y=1”. In addition, each value appears twice (for example, “x=1, y=1” followed by “x=1, y=1”)
E.
The program prints pairs of values for x and y that are always the same on the same line (for example, “x=1, y=1”. In addition, each value appears twice (for example, “x=1, y=1” followed by “x=2s, y=2”)