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import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class Test {
public static void main(String[] args) throws IOException {
List<String> list = new ArrayList<String>();
BufferedReader br = new BufferedReader(new FileReader("ddd.txt"));
String line = null;
while((line=br.readLine())!=null){
System.out.println(line);
list.add(line);
}
br.close();
BufferedWriter bw = new BufferedWriter(new FileWriter("ddd.txt"));
for(String str : list){
bw.write(str);
bw.newLine();
bw.flush();
}
bw.close();
}
}