Add readme and cleanup

README.md

@@ -0,0 +1,19 @@
+BLAKE3 in Java
+---
+A completely unoptimized translation of the blake3 reference implementation from rust to java.
+Useful for if you want a single file implementation of blake3 with no dependencies and don't care about speed.
+
+If what you are java bindings for blake3 that are fully optimized try: https://github.com/sken77/BLAKE3jni
+```java
+        // Hashing strings
+        Blake3 hasher = new Blake3();
+        hasher.update("This is a string");
+        String hexhash = hasher.hexdigest();
+```
+```java
+        // Hashing files
+        String filename = "src/com/github/rctcwyvrn/blake3java/Blake3.java";
+        Blake3 fileHasher = new Blake3();
+        fileHasher.updateFile(filename);
+        String filehash = fileHasher.hexdigest();
+```

src/com/github/rctcwyvrn/blake3java/Blake3.java

@@ -309,17 +309,13 @@ public void update(String input){
         updateRaw(converted);
     }
 
-    public void updateFile(String filename){
-        try {
-            byte[] fileContent = Files.readAllBytes(Paths.get(filename));
-            short[] converted = new short[fileContent.length];
-            for(int i = 0; i<fileContent.length; i++){
-                converted[i] = (short) (0xff & fileContent[i]);
-            }
-            updateRaw(converted);
-        } catch (IOException e) {
-            System.err.println("File not found: " + filename);
+    public void updateFile(String filename) throws IOException {
+        byte[] fileContent = Files.readAllBytes(Paths.get(filename));
+        short[] converted = new short[fileContent.length];
+        for(int i = 0; i<fileContent.length; i++){
+            converted[i] = (short) (0xff & fileContent[i]);
         }
+        updateRaw(converted);
     }
     private void updateRaw(short[] input){
         while(input.length != 0) {

src/com/github/rctcwyvrn/blake3java/Main.java

@@ -1,5 +1,7 @@
 package com.github.rctcwyvrn.blake3java;
 
+import java.io.IOException;
+
 public class Main {
     public static void main(String[] args){
 
@@ -13,10 +15,15 @@ public static void main(String[] args){
         // Hashing files
         // Warning: Very slow due to lack of optimizations :c
         String filename = "src/com/github/rctcwyvrn/blake3java/Blake3.java";
-        Blake3 fileHasher = new Blake3();
-        fileHasher.updateFile(filename);
-        String filehash = fileHasher.hexdigest();
-        if(!filehash.equals("5110a18d7e9595629ea32c87337662f6b1247b970e38dac117c47778955200de")) throw new AssertionError();
-        System.out.println("Success: " + filehash);
+        try {
+            Blake3 fileHasher = new Blake3();
+            fileHasher.updateFile(filename);
+            String filehash = fileHasher.hexdigest();
+            if (!filehash.equals("86894a68f93452be698f7ec97bc932df093f9905a52df73226cee2d713bf5323"))
+                throw new AssertionError();
+            System.out.println("Success: " + filehash);
+        } catch (IOException e) {
+            System.err.println("File not found: " + filename);
+        }
     }
 }