7.2底层容器类JFrame:和JApplet javax.swing javax.swing 类JFrame 类JApplet java.lang.Ob ject java.lang.Object Ljava.awt.Component Ljava.awt.Component Ljava.awt.Container Ljava.awt.Container L java.awt.Window Ljava.awt.Panel Ljava.awt.Frame Ljava.applet.Applet Ljavax.swing.JFrame Ljavax.swing.JApplet JFrame和JApplet的类继承关系 电裂 点击此处结放映 7.2 底层容器类JFrame和JApplet JApplet JFrame和JApplet的类继承关系