What will be written to the standard output when the following program is run？（）  
public class Q63e3 {  
public static void main（String args[]） {  
System.out.println（9 ^ 2）；  
}  
}  

WritealineofcodethatdeclaresavariablenamedlayoutoftypeLayoutManagerandinitializesitwithanewobject，whichwhenusedwithacontainercanlayoutcomponentsinarectangulargridofequal-sizedrectangles，3componentswideand2componentshigh.（） 点击查看答案

Given that a static method doIt（） in a class Work represents work to be done， what block of code will succeed in starting a new thread that will do the work？   CODE BLOCK a：   Runnable r = new Runnable（） {   public void run（） {   Work.doIt（）；   }   }；   Thread t = new Thread（r）；   t.start（）；   CODE BLOCK b：   Thread t = new Thread（） {  public void start（） {   Work.doIt（）；  }  }；   t.start（）；   CODE BLOCK c：   Runnable r = new Runnable（） {   public void run（） {   Work.doIt（）；   }   }；   r.start（）；  CODE BLOCK d：   Thread t = new Thread（new Work（））；   t.start（）；   CODE BLOCK e：   Runnable t = new Runnable（） {   public void run（） {   Work.doIt（）；   }   }；   t.run（）；

A.Code block a.
B.Code block B.
C.Code block c.
D.Code block d.
E.Code block e.

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