java - Java中从BufferReader读取字符字段

Question

如何在java中读取字符字段中的一行字符？

private char[] w;
int i=0;

BufferedReader br = new BufferedReader(new FileReader("pathToFile..."));

char c = '-1';

while (c!='\n') {
    w[i++] = (char) br.read();
}

我得到了java.lang.NullPointerException

Answer 1

试试这个

 private char[] w;

 BufferedReader br = new BufferedReader(new FileReader("pathToFile..."));

 String s = null;
 // to iterate for each line in file
 while ((s = br.readLine()) !=  null ) {
    // this will store chars of line
    w = s.toCharArray();
   //TODO - do something based on w array

 }