读取两个文件数据合并排序输出到新文件.doc

/FileOperate.java/* * (#)FileOperate.java * * * author * version 1.00 2011/4/12 */package monster.task;import java.io.BufferedReader;import java.io.BufferedWriter;import java.io.FileReader;import java.io.FileWriter;import java.util.ArrayList;public class FileOperate private static BufferedReader input;private static BufferedWriter output; public FileOperate() /read file public static ArrayList read(String file) ArrayList list = new ArrayList(); try input = new BufferedReader(new FileReader(file); String s = new String(); while(s = input.readLine() != null) String data = s.split( ); for(int i = 0;i data.length;i+ ) System.out.println(datai); list.add(datai); input.close(); catch (Exception ex) ex.printStackTrace(); finally return list; /write file public static void write(ArrayList list2) try output = new BufferedWriter(new FileWriter(result.txt); for (int j = 0;j list2.size();j+) output.write(list2.get(j) + ); output.close(); catch (Exception ex) ex.printStackTrace(); public static void main(String args) return; /Sort.java/* * (#)Sort.java * * * author * version 1.00 2011/4/12 */package monster.task;import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;public class Sort public Sort() public ArrayList DoubleSort(ArrayList list)Collections.sort(list, new Comparator() public int compare(Object o1, Object o2) return new Double(String) o1).compareTo(new Double(String) o2); ); return list; /Main.java/* * (#)Main.java * * * author * version 1.00 2011/4/12 */package monster.task;import monster.task.*;import java.util.ArrayList;import java.util.Collections;public class Main /* * Creates a new instance of Main. */ public Main() /* * param args the command line arguments */ public static void main(String args) FileOperate fo = new FileOperate(); Sort s = new Sort();ArrayList list1 = fo.read(2