black

SCJP程序员认证考试

登录

填空题

5. String foo = “base”; 
6. foo.substring(0,3); 
7. foo.concat(“ket”) 
8.    
Type the value of foo at line 8.()

【参考答案】

BASE

相关考题

单项选择题 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?()

单项选择题 public class SyncTest (  private int x;  private int y;  private synchronized void setX (int i) (x=1;)  private synchronized void setY (int i) (y=1;)  public 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?

多项选择题 WhichtwocanbeusedtocreateanewThread?()

All Rights Reserved 版权所有©求知题库网库(csqiuzhi.com)

备案号:湘ICP备14005140号-1

经营许可证号:湘B2-20140064