Java中按行读取文件的问题

我在代码中想读取如下格式的文件，但是问题是逗号后面的那个数字丢失了，这怎么解决？
0.0220472,0.0299213 0 0.0220472 0 0.00314961 0.0283465 0.00629921 0.0015748
0.0204724,0 0.0220472 0 0.00314961 0.0283465 0.00629921 0.0015748 0.0220472

代码大致如下：
double [][] x;
double [] y;

int lag=8;
File file = new File("src/data.txt");
int row=getFileLineCounts("src/data.txt");
x=new double[row][];
y=new double[row];
BufferedReader reader = null;
try {
System.out.println("以行为单位读取文件内容，一次读一整行：");
reader = new BufferedReader(new FileReader(file));

int line = 1;
String tempString = null;
String [] tempStringComma = null;
String [] tempStringSpace = null;
// 一次读入一行，直到读入null为文件结束
while ((tempString = reader.readLine()) != null) {
// 显示行号
// System.out.println("line " + line + ": " + tempString);
tempString = reader.readLine();
tempStringComma = tempString.split(",");
tempStringSpace = tempStringComma[1].split(" ");
StringTokenizer st = new StringTokenizer(tempString,", ");
while(st.hasMoreTokens() ){
System.out.println(st.nextToken());
}
line++;
}

System.out.println("line is "+line);

reader.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (reader != null) {
try {
reader.close();
} catch (IOException e1) {
System.out.println("Wrong");
}
}
}
System.out.println("READ END");