SCJP程序员认证考试

单选题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.pri

题目
单选题
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”）.

更多“public class X implements Runnable（    private int x；   priv”相关问题
相关内容