import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.util.Scanner;
public class Arquivos {
public static void metodoPorStream() {
try {
// entrada
InputStream is = new FileInputStream("s:/temp.sql");
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
// saida
OutputStream os = new FileOutputStream("s:/saida.sql");
OutputStreamWriter osw = new OutputStreamWriter(os);
BufferedWriter bw = new BufferedWriter(osw);
// le a primneira linha
String linha = br.readLine();
// percorre todo arquivo de leitura
while (linha != null) {
// mostra no console
System.out.println(linha);
// grava no destino
bw.append(linha.toUpperCase());
bw.newLine();
// pega proxima linha
linha = br.readLine();
}
// fecha tudo
br.close();
bw.close();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void metodoPorScan() {
try {
// leitor
Scanner sc = new Scanner(new FileInputStream("s:/temp.sql"));
// escritor
PrintStream ps = new PrintStream("s:/saida.txt");
// percorre o arquivo
while (sc.hasNextLine()) {
String linha = sc.nextLine();
// grava no destino
ps.println(linha);
}
// fecha tudo
ps.close();
sc.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
// gravando
// metodoPorStream();
metodoPorScan();
}
}