我想得到:
String[] phoneNos= {"07064267499","07064267499","07064267499"};
来自:
ArrayList<Object> phoneNos = [0803406914, 08167337499, 0803377973] ;
这是我的代码片段:
public ArrayList < Object > getPhoneNo() {
ArrayList < Object > phoneNos = new ArrayList < Object > ();
try {
Statement stmt = con.createStatement();
ResultSet result = stmt.executeQuery("SELECT Phone_No FROM paient_details");
while (result.next()) {
phoneNos.add(result.getString(1));
}
} catch (SQLException e) {
System.out.println(e.getMessage());
}
return phoneNos;
}
最佳答案
您可以从toArray()
对象使用List
方法:
String[] phoneNosArray = new String[phoneNos.size()];
phoneNosArray = phoneNos.toArray(phoneNosArray);
关于java - 从Arraylist创建字符串数组,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/33329037/