读取txt字符

package com.xahl.io; import java.io.*; public class tongji { char c[] = new char[100]; int t = 0; public void tongji() { for (int i = 0; i < 100; i++) { if (c[i] == 'e') { // c[i] = 'A'; t++; } } System.out.println("这个文件中有" + t + "个e"); } public tongji() { } public void connection() { try { File f = new File("C:/Documents and Settings/menjie/桌面/11.txt"); FileInputStream in = new FileInputStream(f); InputStreamReader ir = new InputStreamReader(in); ir.read(c); } catch (Exception e) { e.printStackTrace(); } } public void push() { try { File fc = new File("C:/Documents and Settings/menjie/桌面/2.txt"); FileOutputStream out = new FileOutputStream(fc); OutputStreamWriter ow = new OutputStreamWriter(out); ow.write(c); ow.close(); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { tongji k = new tongji(); k.connection(); k.tongji(); k.push(); } }