>2.0 5.0 3.5
>
>5.2 0.5 4.8
>
>1.0
>
>2.5

import java.io.*;

public class MainProg{
    public static void main(String[] args) throws IOException{
        FileReader fr = new FileReader("info.txt");
        BufferedReader br = new BufferedReader(fr);
        String nums;
        int count =0;
        int lineNo = 0;


        while((nums = br.readLine()) != null){
            String numbers[] = nums.split(" ");
            double[][] ball = new double[lineNo][];
            if(numbers.length == 3){
                for(int i = 0; i < numbers.length; i++){
                    double[][] box = new double[lineNo][i];
                    box[lineNo][i] = Double.parseDouble(numbers[lineNo]);

                    lineNo++;

                    System.out.println(box[i] + " ");
                }
            }else{
                while(numbers.length == 1 && ((nums = br.readLine()) != null)){
                    int p = 0;
                    ball[count][p] = Double.parseDouble(numbers[count]);
                    p++;
                    count++;
                }
            }
        }
    }
}