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テキストファイル(二次元配列)読み込み

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public static int[][] Fileimport(String adress){

		/* adress = 読み込みたいテキストファイルがある場所。
		 */

		//配列[ノード番号][ノードの要素]の配列を準備
		int Index[][] = new int[325557][];

		//ファイルの読み込み
		try{
			//ファイルのアドレスよりbrにファイルの情報を格納
			FileReader filereader = new FileReader(adress);
			BufferedReader br = new BufferedReader(filereader);

			//一行ずつ読み込んで
			String str = br.readLine();
			int count = 0;

			while(str != null){
				//strlist.add(str.split(","));
				//一行の内容を','で分割してそれぞれを[count=ノード番号]の2次元目の配列の要素として格納
				Index[count] = parseInts(str.split(","));
				//次の行を読み込み
				str = br.readLine();
				count++;
			}

			br.close();

		}catch(FileNotFoundException e){
  			System.out.println(e);
		}catch(IOException e){
			System.out.println(e);
		}

		return Index;

	}
public static int[] parseInts(String[] s){

		/* s[] = intに変換したいストリングを収めた配列
		 */

		int[] x = new int[s.length];
		for(int i = 0; i < s.length; i++){
			x[i] = Integer.parseInt(s[i]);
		}
		return x;
	}
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