How to read and select only a specific lines from a CSV file. Pls help

Question

I have a java application to read a CSV file. I've already managed to read them all and output it to System.out.println(). Now the problem is I want to select a specific row of the records. How do I do it? Below is the codes i've typed.
FileReader fr = new FileReader(fileName);
BufferedReader inFile = new BufferedReader(fr);
StringBuffer buf = new StringBuffer();
String line = null;
while ((line = inFile.readLine()) != null) {
buf.append(line);
buf.append("\n");
String inString = buf.toString();
System.out.println(inString);
This is the record that i want to read. For example, I want to select n print out line "80,2.90,3.00,3.10,3.20,......."
[Factor1]
Time [s],0.00,0.10,0.20,0.30,0.40,0.50,0.60,0.70,0.80,0.90,1.00,1.10,1.20,1.30,1.40,1.50,1.60,1.70,1.80,1.90,2.00,2.10,2.20,2.30,2.40,2.50,2.60,2.70,2.80,2.90,3.00,3.10,3.20,3.30,3.40,3.50,3.60,3.70,3.80,3.90,4.00,4.10,4.20,4.30,4.40,4.50,4.60,4.70,4.80,4.90,5.00,5.10,5.20,5.30,5.40,5.50,5.60,5.70,5.80,5.90,6.00,6.10,6.20,6.30,6.40,6.50,6.60,6.70,6.80,6.90,7.00,7.10,7.20,7.30
Phi-0 [dB],-0.86,-0.80,-0.80,-0.99,-0.56,-0.53,-0.95

Answer 1

If you know how many bytes each line is, you can use RandomAccessFile to skip directly to the byte position corresponding to your desired line. Otherwise, you'll have to read each line and just ignore the ones you don't want.