java讀寫文件

quick reference

read

public static List<String> getAllTxtFiles(String dirLocation){
		File f = new File(dirLocation);
		if(!f.isDirectory() && f.getName().endsWith(".txt")){
			fileList.add(f.getAbsolutePath());
		}else if(f.isDirectory()){
			File[] childFiles = f.listFiles();
			for(File tf : childFiles){
				getAllTxtFiles(tf.getAbsolutePath());
			}
		}
		
		return fileList;
	}

write

private static void writeToFile(String tolocation2) throws IOException {
		File f = new File(tolocation2);
		if(!f.isFile()) return;
		FileWriter fw = new FileWriter(f, false);
		for(String s : batch){
			fw.write(s+"\n");
		}
		fw.close();
	}