src.rar_支持向量机 java

import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.util.StringTokenizer; public class MyFormatter { public static void main(String[] args) { FileReader fr = null; BufferedReader br = null; FileWriter fw=null; String sInput=""; try { fr = new FileReader("needed.txt"); br = new BufferedReader(fr); String s = null; int count =0; fw=new FileWriter("carbon.dat"); while ((s = br.readLine()) != null) { sInput=""; count =0; StringTokenizer st = new StringTokenizer(s," \t\n\r\f:"); while (st.hasMoreTokens()) { if(count==0){ sInput+=st.nextToken()+" "; count++; }else{ sInput+=(count++)+":"+st.nextToken()+" "; } } sInput+="\n"; fw.write(sInput); } br.close(); fw.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }