Java 有没有办法将字符串数组转换为字符数组？

简言之，我有一组单词，如

{apple，banana，cat}

我想看看我是否能把它转换成

{a，p，p，l，e，b，a，…}

我甚至不确定这是否可能

我最初愚蠢的尝试：

for(String s: lelWords)
{
    lelChars.add(s.toCharArray());
}

---

应该很简单

int numChars = 0;

//determine the total number of characters
for (int i = 0; i < strings.length; i++) 
  numChars += strings[i].length();
int idx = 0;

//declare our final array of characters
char[] chars = new char[numChars];

//populate our new array
for (int i = 0; i < strings.length; i++) {
  for (int j = 0; j < strings[i].length; j++) {
    chars[idx] = strings[i].charAt(j);
    idx++;
  }
}

int numChars=0；
//确定字符总数
for（int i=0；i

String[] strArray = {"apple", "banana", "cat"};
//combine all words to one string
String combStr = new String();
for(String string: strArray)
    combStr += string;

char[] charArray = combStr.toCharArray();
//checking
System.out.println(charArray);