我正在使用此代码,它可以很好地运行,但是我需要在每行中添加“ \n
”
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
filename = "Reverse.txt";
file = new File(filename);
try (final Stream<String> lines = Files.lines(Paths.get(filename))) {
lines.collect(Collectors.toCollection(LinkedList::new))
.descendingIterator()
.forEachRemaining(jTextArea1::append); // <<<<<<< need "\n"
}
catch (IOException ex) {
Logger.getLogger(TextAreaReverseReadFrame.class.getName()).log(Level.SEVERE, null, ex);
}
}
答案 0 :(得分:1)
您可以在源代码处变换每一行,这意味着在要收集的行之前添加一个地图指令:
lines.map(element -> element + '\n').collect(Collectors.toCollection(LinkedList::new)).descendingIterator()
.forEachRemaining(testBuilder::append);
答案 1 :(得分:0)
只需尝试更改
.forEachRemaining(jTextArea1::append);
收件人:
.forEachRemaining(singleLine -> jTextArea1.append(singleLine + "\n"));