Implement reading and writing weights to file

src/WeightsParser.java

@@ -0,0 +1,75 @@
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.FileNotFoundException;
+
+public class WeightsParser{
+
+    public double[] getWeights(String path){
+        BufferedReader br = null;
+
+        try{
+
+            br = new BufferedReader(new FileReader(path));
+            String line = br.readLine();
+            String nextline = br.readLine();
+            while(nextline != null){
+                line = nextline;
+                nextline = br.readLine();
+            }
+            String[] w = line.split(",");
+            double[] weights = new double[w.length];
+            for(int i = 0; i < weights.length; i++){
+                weights[i] = Double.parseDouble(w[i]);
+            }
+            return weights;
+        }
+        catch (FileNotFoundException e){
+            e.printStackTrace();
+        }
+        catch (IOException e){
+            e.printStackTrace();
+        }
+        finally{
+            try{
+                br.close();
+            }
+            catch(IOException e){
+                e.printStackTrace();
+            }
+        }
+        return null;
+    }
+
+    public void writeWeights(String path, double[] weights){
+        BufferedWriter bw = null;
+        try{
+            bw = new BufferedWriter(new FileWriter(path, true));
+            String res = "";
+            for(double w: weights){
+                res += w + ", ";
+            }
+            res = res.substring(0, res.length() -2);
+            res += "\n";
+            bw.write(res);
+        }
+        catch (FileNotFoundException e){
+            e.printStackTrace();
+        }
+        catch (IOException e){
+            e.printStackTrace();
+        }
+        finally{
+            try{
+                bw.close();
+            }
+            catch(IOException e){
+                e.printStackTrace();
+            }
+        }
+    }
+}
+
+