import java.io.*;

public class A
{
	public static void main(String[] args) throws Exception
	{
		BufferedOutputStream bos = new BufferedOutputStream(System.out);
		PrintStream          ps  = new PrintStream(bos);

		System.out.println("1");
		ps.println("2");
		System.out.println("3");

		ps.flush();
	}
}

###

c:\desktop> javac *.java && java A
1
3
2
Process javac exited with code 0