Java BufferedReader create from StringReader to read from a string

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.StringReader;

public class Main {
  public static void main(String[] args) throws Exception {
    BufferedReader in2 = new BufferedReader(new StringReader("line1\nline2\n"));
    PrintWriter out1 = new PrintWriter(new BufferedWriter(new FileWriter(
        "Main.out")));
    int lineCount = 1;
    String s = "";
    while ((s = in2.readLine()) != null)
      out1.println(lineCount++ + ": " + s);
    out1.close();/*from   w w w.ja  va  2s  .c om*/
    
    System.out.println("done");
  }
}