anderson-martins

Careful use of concurrency is particularly important to the Swing programmer. A well-written Swing program uses concurrency to create a user interface that never "freezes" — the program is always responsive to user interaction, no matter what it's doing. To create a responsive program, the programmer must learn how the Swing framework employs threads.

anderson-martins

    public static java.util.List<FileItem> listDirectoryAppend(File dir, java.util.List<FileItem> lista) {
        if (dir.isDirectory()) {
            String[] filhos = dir.list();
            for (int i = 0; i < filhos.length; i++) {
                File nome = new File(dir, filhos[i]);
                if (nome.isFile()) {
                    if (nome.getName().toUpperCase().endsWith(".GBK")) {
                        lista.add(new FileItem(nome));
                    }
                } else if (nome.isDirectory()) {

anderson-martins

Map<Integer, String> map = ...

Iterator<Map.Entry<Integer, String>> it = map.entrySet().iterator();

while (it.hasNext()) {
  Map.Entry<Integer, String> entry = it.next();

  // Remove entry if key is null or equals 0.
  if (entry.getKey() == null || entry.getKey() == 0) {
    it.remove();

anderson-martins

    String target = "FOOBar";
    target = target.replaceAll("(?i)foo", "");
    System.out.println(target);