public class X i_睦霖题库

单项选择题 public class X implements Runnable（ private int x； private int y； public static void main（Stringargs） X that = new X（）；（new Thread（that））.start（）；（new Thread（that））.start（）；） public void run（）（ for （；；）（ x++； y++； System.out.printIn（“x=” + x + “， y = ” + y）；）） What is the result？（）: A、 Errors at lines 7 and 8 cause compilation to fail.; B、 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”）.; C、 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”）.; 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 only for once （for example， “x=1， y=1” followed by “x=2， y=2”）.

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