String line = scanner.nextLine()+”\n”;
可以按行输出
Scanner scanner = new Scanner(System.in);
RandomAccessFile raf = new RandomAccessFile(“note1234.txt”,”rw”);
System.out.println(“请输入内容:(‘exit’为退出)”);
while(true) {
String line = scanner.nextLine()+"\n";
if("exit".equals(line.trim())) {
break;
}
byte[] data = line.getBytes("utf-8");
raf.write(data);
}
System.out.println("输出结束");
raf.close();