大家看一下，以下两段代码有什么不同： 真是搞不懂，中间只是调用了一个函数，结果就会一个能画得出来，另一个却画不出来了。 下面是全部的源代码。共有两个 java 文件 =====TestPanel.java===== import java.awt.*; import javax.swing.*; import javax.swing ...

Given a JPanel that is on the interface at 64x64pixels how can I get it to paint into a bitmap as if it were 128*128pixels, <I>without</I> either removing it from the interface or changing the actual ...