方法的调用问题，有一个可运行的例子，请进

Question

java.lang.Object
  |
  +-java.awt.Component
        |
        +-java.awt.Container
              |
              +-java.awt.Window
                    |
                    +-java.awt.Frame
                          |
                          +-javax.swing.JFrame
pack()等方法是從它的所有父類中繼承過來的(pack()在Window中).
繼承並不僅指它的直接父類.

Answer 1

java.lang.Object
  |
  +-java.awt.Component
        |
        +-java.awt.Container
              |
              +-java.awt.Window
                    |
                    +-java.awt.Frame
                          |
                          +-javax.swing.JFrame
pack()等方法是從它的所有父類中繼承過來的(pack()在Window中).
繼承並不僅指它的直接父類.