怎样将一个字符串转化成char数组解决思路

怎样将一个字符串转化成char数组
一个字符串怎样转化成字符数组？
char []c = new char[1024];
然后再由BufferedWriter 写入到文件里面呢？

[解决办法]

Java code

import java.io.BufferedWriter;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.OutputStreamWriter;public class Test{    public static void main(String[] args) throws Exception    {        String s = "Hello World";        char[] c = s.toCharArray();        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(                new FileOutputStream("D:\\d.txt")));                bw.write(c);                bw.close();    }}