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package test;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class test {
public static void main(String[] args) throws IOException {
String status_file = "/home/work/hdfs-manager/round1_result_windows2x_2012-04-20_0000.status";
File fp = new File(status_file);
BufferedReader input = new BufferedReader(new FileReader(status_file));
BufferedWriter output = new BufferedWriter(new FileWriter(status_file));
String line;
while ((line = input.readLine()) != null) {
System.out.println(line);
}
input.close();
//写文件操作
...
}
}