BufferedWriter : flush()

package BufferedWriter;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class flush00 {
    public static void main(String[] args) throws Exception{
        BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
        String strLine=in.readLine();
       
        BufferedWriter out=new BufferedWriter(new OutputStreamWriter(System.out));
        out.write(strLine,0,strLine.length());
        out.flush();
        in.close();
        out.close();
    }
}