How to use the new java netbeans project

Such as the title ?
How to use the new java netbeans project ?
How to import another project ?
best shots, do not just say that . . .
Thank you . .

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http://jingyan.baidu.com/article/19192ad855b34ee53e5707d7.html
yourself, now really is more lazy . . . Too lazy to search the search .
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seemingly not what I need. . No one else posts. . Points can only give you.