From b614b0d0ce16482379267a116a6ea9b3a6ecb189 Mon Sep 17 00:00:00 2001
From: Eugene Fischer <ej@eugenefischer.com>
Date: Thu, 11 Jun 2020 13:48:53 -0500
Subject: [PATCH] rewritten to use streams

---
 Sorting/RandomNumberFileMaker.java | 34 ++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/Sorting/RandomNumberFileMaker.java b/Sorting/RandomNumberFileMaker.java
index ab13f64..d79c143 100644
--- a/Sorting/RandomNumberFileMaker.java
+++ b/Sorting/RandomNumberFileMaker.java
@@ -1,9 +1,14 @@
 package Sorting;
 
-import java.io.File;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+import java.io.BufferedWriter;
+import java.util.Random;
 import java.io.IOException;
-import java.io.FileWriter;
-import java.lang.Math;
+//import java.io.File;
+//import java.io.FileWriter;
+//import java.lang.Math;
 
 /**
  * This class will allow the user to make a file of random integers.
@@ -24,6 +29,27 @@ public class RandomNumberFileMaker {
        max=M+1;
     }
 
+    //new version using streams and a try-with-resouces block
+    public void writeFile(){
+        try(BufferedWriter writer = Files.newBufferedWriter(Path.of(filename), StandardOpenOption.CREATE_NEW)){
+            Random random = new Random();
+            random.ints(count, min, max+1)
+                .forEach(num -> 
+                    {
+                        try{
+                            writer.write(Integer.toString(num)); writer.newLine();
+                        }catch (IOException ex){
+                            System.out.println("An error occurred.");
+                        }  
+                    });
+        }catch (IOException ex){
+            System.out.println("Could not make new file named "+filename);
+        }
+    }
+
+
+    //previous version retained for reference.
+    /*
     public void writeFile(){
         try{
             File randomNumbers = new File(filename);
@@ -42,6 +68,6 @@ public class RandomNumberFileMaker {
         }catch (IOException ex){
             System.err.println(ex);
         }
-    }
+    }*/
 
 }
\ No newline at end of file