初學(xué)Java..有個(gè)疑惑。請(qǐng)大神解決。

不明白有沒(méi)有new有什么區(qū)別。比如

String?[][]?names=new?String?[][]{{"tom","jack","mike"},{"zhangsan","lisi","wangwu"}};

和這句

String?[][]?names={{"tom","jack","mike"},{"zhangsan","lisi","wangwu"}};

為什么不能用下面這句，而是寫成上面那句的形式？