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Java-按行数分割文本
package First;import java.io.BufferedReader;import java.io.File;import java.io.FileReader;import java.io.FileWriter;import java.io.IOException;import java.io.InputStreamReader;public class DealFile {public static void main(String[] args) throws Exception{BufferedReader in = new BufferedReader(new InputStreamReader(System.in));//键盘输入文件名称String fileName = in.readLine();FileManager source = new FileManager(fileName);String head = source.nextWord();String word = null;int count = 0;int n = 0;fileName = fileName.substring(0, fileName.length()-4);FileWriter w = null;while((word = source.nextWord()) != null){if(count == 0){w = new FileWriter(fileName+n+".csv");w.write(head);}//System.out.println(n + ":" + count);w.write(word);++count;if(count == 100000){++n;count = 0;w.close();}}}}class FileManager{int pos = 0;File f;FileReader reader;boolean flag = false;public FileManager(String filename)throws Exception{f = new File(filename);reader = new FileReader(f);}public String nextWord() throws IOException{if(flag)return null;char[] buf = new char[1];StringBuffer sb = new StringBuffer();int len;do{len = reader.read(buf);sb.append(buf[0]);}while('\n' != buf[0] && len != -1);if(len == -1)flag = true;return sb.toString();}}
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