Load/save Int Map Data : Stream « File « Android






  1. Android
  2. File
  3. Stream

Load/save Int Map Data

    
//package com.akjava.lib.android.map;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class MapIO {

  public static final int[][] loadIntMapData(InputStream input) throws  IOException{
    BufferedReader reader=new BufferedReader(new InputStreamReader(input));
    String line;
    ArrayList<int[]> list=new ArrayList<int[]>();
    while((line=reader.readLine())!=null){
      if(line.equals("")){
        //ignore
      }else{
        String[] vs=line.split(",");
        int ints[]=new int[vs.length];
        for (int i = 0; i < ints.length; i++) {
          ints[i]=Integer.parseInt(vs[i]);
        }
        list.add(ints);
      }
      
    }
    int[][] map=new int[list.size()][];
    for (int i = 0; i < map.length; i++) {
      map[i]=list.get(i);
    }
    return map;
  }
  
public static final void writInteMapData(int[][] map,File file) throws IOException{
    StringBuffer output=new StringBuffer();
    for(int i=0;i<map.length;i++){
    
      for(int j=0;j<map[i].length;j++){
        output.append(Integer.toString(map[i][j]));
        if(j!=map[i].length-1){
          output.append(",");
        }
      }
      
      if(i!=map.length-1){
        output.append("\r\n");
      }
    }
    
    
      BufferedWriter writer=new BufferedWriter(new FileWriter(file));
      writer.write(output.toString());
      writer.close();
    
    
  }
}








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