Problema 3 - Lab05

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package Lab0501;

import java.io.*;

/**
 *
 * @author Nan Mihai
 */
public class Prob3 {
    public static void main(String args[]) throws IOException {
        String nume, numeOut;
        String cale;
        cale = "H:\\Anul II\\Programare orientata pe obiecte\\Java\\Lab1\\JavaApplication1\\src\\Lab0501";
        nume = cale + "\\" + "fisier1.txt";
        numeOut = cale + "\\" + "fisier_out.txt";
        String text = "";
        int c;
        char cr;
        try (FileReader f_in = new FileReader(nume)) {
            while((c = f_in.read()) != -1) {
                cr = (char) c;
                if(Character.isUpperCase(cr)) {
                    text += Character.toLowerCase(cr);
                } else {
                    text += Character.toUpperCase(cr);
                }
            }
            try (PrintStream raf = new PrintStream(new FileOutputStream(numeOut))) {
                raf.printf("%s\n", text);
                raf.close();
            }
        }
    }
}