JAVA 数组转换成List及List转换成数组

import java.util.ArrayList;import java.util.Arrays;import java.util.List;String[] array = new String[] {"str1", "str2"};;ArrayList<String> projection = new ArrayList<String>(Arrays.asList(array));List<String> list = Arrays.asList(arr);

List<String> list = new ArrayList<String>();  list.add("str1");  list.add("str2");  int size = list.size();  String[] arr = (String[])list.toArray(new String[size]);