我将从关闭阅读器和刷新书写器开始：
public class FileReplace { List<String> lines = new ArrayList<String>(); String line = null; public void doIt() { try { File f1 = new File("d:/new folder/t1.htm"); FileReader fr = new FileReader(f1); BufferedReader br = new BufferedReader(fr); while ((line = br.readLine()) != null) { if (line.contains("java")) line = line.replace("java", " "); lines.add(line); } fr.close(); br.close(); FileWriter fw = new FileWriter(f1); BufferedWriter out = new BufferedWriter(fw); for(String s : lines) out.write(s); out.flush(); out.close(); } catch (Exception ex) { ex.printStackTrace(); } } public static void main(String args[]) { FileReplace fr = new FileReplace(); fr.doIt(); }}
