substringrange.java

熟悉非常简单CPU模拟器 1、将所给模拟器的源程序编译成执行程序。 2、运行并观察非常简单CPU模拟器

public
class SubstringRange
{

   public SubstringRange()
   {
      this( 0, 0 );
   }

   public SubstringRange( int begin, int end )
   {
      setBeginIndex( begin );
      setEndIndex( end );
   }

   public SubstringRange( SubstringRange range )
   {
      setBeginIndex( range.beginIndex );
      setEndIndex( range.endIndex );
   }

   public int getBeginIndex()
   {
      return ( beginIndex );
   }

   public int getEndIndex()
   {
      return ( endIndex );
   }

   public int length()
   {
      return ( endIndex - beginIndex );
   }

   public void setBeginIndex( int begin )
   {

      if ( begin > 0 )
      {
         beginIndex = begin;
      }
      else
      {
         beginIndex = 0;
      }

   }

   public void setEndIndex( int end )
   {

      if ( end > 0 )
      {
         endIndex = end;
      }
      else
      {
         endIndex = 0;
      }

   }

   private int beginIndex;
   private int endIndex;
}