通过参数读取文件的函数

Question

大家好，我在读取文件的方法上遇到困难。我在文档中没有找到任何内容。

我正在尝试返回一个字符数组。

public class ReadFile {

    public static void main(String[] args) throws IOException {
        
        File  f = new File("word.txt");
     
        char [] word=ReadWordFile(f);
        
        System.out.println(word);

    }
    
    
    //1.Read words  from File and return as arr of char
    public static  char [] ReadWordFile(File f) throws IOException {
         BufferedReader br
         = new BufferedReader(new FileReader(f));
         
         char [] aux = null;

     // Declaring a string variable
     String st;
     // Condition holds true till
     // there is character in a string
     while ((st = br.readLine()) != null)

        st+=aux;

     return aux;    
    }

Answer 1

您的代码中没有任何变化

aux

：

char [] aux = null;
// Declaring a string variable
String st;
// Condition holds true till
// there is character in a string
while ((st = br.readLine()) != null)
  st+=aux;
return aux;

连接所有读取的字符串，然后从以下位置获取字符数组：

String st = "", read = null;
// Condition holds true till
// there is character in a string
while ((read = br.readLine()) != null)
  st += read;
return st.toCharArray();