阅读方法makeMenubar(String [ ][ ]menuList, ActionListener listener),设某程序用以下数组调用该方法:
String testmenuList[ ][ ]=
{{"体育","跑步","打篮球","--","打乒乓"},
{"娱乐","唱歌","跳舞"},
{"学习","数学","语文"}};
请回答:
(1)方法被调用后,界面将呈现的菜单条有哪些菜单?
(2)字符串"--"的作用是什么?
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