qkoufu2151 2小时前 开发者_JAVA技巧 西芹炒五香牛皮干的做法，共7个步骤 1西芹、五香牛皮干、青红椒切丝。
I have a JPanel sitting inside the center pos开发者_JS百科ition of a BorderLayout of a JFrame.How can I swap out the current JPanel for a new one?Did you try something on the lines of:
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