如何从文件中读入一行字符串
DataInputStream ServerConfigFile;
ServerConfigFile = new DataInputStream(new FileInputStream( "srvcfg.txt "));
try{
IntString = ServerConfigFile.readLine();
}
catch (IOException ioe){
consoleOutput.append( "\n Error reading the # servers ");
}
提示readLine is deprecated
[解决办法]
IntString = ServerConfigFile.readLine();
??????
[解决办法]
import java.io.BufferedReader;
import java.io.*;
/**
* @author Administrator
*/
public class Inputtest {
public static void main(String[] args) throws Exception{
FileInputStream fi =new FileInputStream( "C://a.txt ");
BufferedReader br = new BufferedReader(new InputStreamReader(fi));
String c =br.readLine();
System.out.println(c);
}
}
//一切OK！
[解决办法]
BufferedReader in = new BufferedReader(new FileReader(file));
str = in.readLine()
[解决办法]
try {
BufferedReader in = new BufferedReader(new FileReader( "infilename "));
String str;
while ((str = in.readLine()) != null) {
// 这里处理读出来的字符串str
}
in.close();
} catch (IOException e) {
}
[解决办法]
你要是用DateInputStream的话,就用readUTF()
readLine()
已过时。 该方法无法将字节正确转换为字符。从 JDK 1.1 开始，读取文本行的首选方法是使用 BufferedReader.readLine() 方法。对于使用 DataInputStream 类读取文本行的程序，可以转而使用 BufferedReader 类，实现方式是通过将以下形式的代码：
DataInputStream d = new DataInputStream(in);
替换为：
BufferedReader d
= new BufferedReader(new InputStreamReader(in));
