SWT:看文档了解GC

GC文档说明

下面一段话摘自GC类源码

Application code must explicitly invoke the <code>GC.dispose()</code>
 * method to release the operating system resources managed by each instance
 * when those instances are no longer required. This is <em>particularly</em>
 * important on Windows95 and Windows98 where the operating system has a limited
 * number of device contexts available

 

 

由文档说明可知：GC也是Resource的子类。在前面的一再强调，Resource的子类代表的一般是本地系统资源，用完后就要释放掉。

Application code must explicitly invoke the  GC.dispose()

 

另外，GC是一种宝贵的资源，尤其在win95/98等系统中，GC的个数是非常有限的。