Some more-complex components, such as the JScrollBar and the JTabbedPane, have multiple constants for their different parts.
有些更复杂的组件，例如JScrollBar和JTabbedPane，则有多个常量，用于不同的部分。
Some more-complex components, such as the JScrollBar and the JTabbedPane, have multiple constants for their different parts.
有些更复杂的组件，例如JScrollBar和JTabbedPane，则有多个常量，用于不同的部分。
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