Topic: 求助~~~~~~~~~~~这2个语法是一样的???? |
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| 1.求助~~~~~~~~~~~这2个语法是一样的???? | Copy to clipboard |
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Posted by: 19850225 Posted on: 2005-01-20 14:42 panelObject=(JPanel)getContentPane(); getContentPane().add(panelObject); 第1个语法看不懂,高手能否解释一下????????/ | |
| 2.Re:求助~~~~~~~~~~~这2个语法是一样的???? [Re: 19850225] | Copy to clipboard |
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Posted by: lover Posted on: 2005-01-20 20:41 getContentPane()返回的是Container JPanel 是Container的子类，所以用（Jpanel）造型转换。 | |
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