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 ...

Java is a programming language that allows developers to write once and deploy everywhere -– from high-end gaming desktops to smartphones. Its OS-agnostic and widespread nature is one of its strongest ...

Engineers from Oracle and software development toolmaker JetBrains may be joining forces to create a new, Java-based 2D rendering pipeline for the Mac operating system (macOS). They've been working on ...