List<ArrayList> arg = new ArrayList<ArrayList>();
與
[[logo], [cd_branche], [lib_branche]],
(other arguments not relevant)
[[1111,22222,3333]],[[2222,324,432]]...
,我想將它轉換爲String []所以我做了這個
Object[] obj = arg.toArray();
String[] headers =new String[obj.length];
for(int i=0;i<headers.length;i++) {
headers[i]= (String) obj[i];
}
但我得到
java.util.ArrayList cannot be cast to java.lang.String
我要找的輸出是
headers[0]=logo
headers[1]=cd_branche
headers[2]=lib_branche
使用Java 6
不,我想要的是一個String []標題頭[1] =「徽標」標題[2] =「cd_branch」等等 –