Question

I’m not having trouble with the output I get output that looks like this
01:08.0 02:07.6 03:07.1 04:07.1 05:07.4 06:07.2 07:07.6 08:07.1 09:07.1 10:07.2
which when i click on gives me corresponding time. The output should actually look like this
1:8.035156,2:7.619141,3:7.105469,4:7.072266
The wrong output only happens when I add the “,” character at the end of the append statement.

public class GeneCsv {
 public static void main(String[]args) throws IOException{
File file = new File("file.csv");
FileWriter writer = new FileWriter("/Users/home/fileExpression.csv");
PrintWriter pw = new PrintWriter(writer);
Scanner in = new Scanner(file);
boolean firstLine = true;
String[] temp = null;
while(in.hasNextLine()){
    if(firstLine== true){


        pw.println(in.nextLine());
        firstLine= false;
        continue;
    }
    else{
    String line = in.nextLine();
    temp = line.split(",");
    for(int i =0; i < temp.length ; i++){
        pw.append(i + ":" + temp[i] + ",");

    }
    pw.append("\n");
    }
    }


pw.flush();
pw.close();
writer.close();
}
    }

Answer 1

What i understand from your question is that, you need to print each comma separated value in a separate line.

For that just print a newline character "\n" outside the for loop:

for(int i =1; i < temp.length ; i++){
   pw.print(i + ":" + temp[i]);    
}
pw.print("\n");

Hope this helps!