package BufferedWriter;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringReader;
public class newBufferedWriter {
public static void main(String[] args) throws Exception{
BufferedReader stdin=new BufferedReader(new InputStreamReader(System.in));
System.out.println(stdin.readLine());
BufferedReader in=new BufferedReader(new FileReader("/org.txt"));
String s,s2=new String();
while((s=in.readLine())!=null){
s2+=s+"\n";
}
in.close();
StringReader in1=new StringReader(s2);
int c;
while((c=in1.read())!=-1){
System.out.println((char)c);
}
BufferedReader in2=new BufferedReader(new StringReader(s2));
PrintWriter out1=new PrintWriter(new BufferedWriter(new FileWriter("/Demo.out")));
int lineCount=1;
while((s=in2.readLine())!=null)
out1.println(lineCount++ +":"+s);
out1.close();
}
}
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