Implementing blocks

src/App.java

@@ -1,9 +1,40 @@
 public class App {
-    public static void main(String[] args) throws Exception {
-        System.out.println("Hello, World!");
+    public static void main(String[] args) {
 
-        for (Integer i = 0; i < 100; i++) {
-            System.out.println(SHA256Helper.generateHash(i.toString()));
-        }
+        BlockChain blockChain = new BlockChain();
+
+        Miner miner = new Miner();
+
+        // Genesis Block
+        Block block0 = new Block(0, "", Constants.GENESIS_PREV_HASH);
+        miner.mine(block0, blockChain);
+
+        // First Block
+        Block block1 = new Block(1, "Transaction1", blockChain.getBlockChain().get(blockChain.getSize() - 1).getHash());
+
+        miner.mine(block1, blockChain);
+
+        // Second Block
+        Block block2 = new Block(2, "Transaction2", blockChain.getBlockChain().get(blockChain.getSize() - 1).getHash());
+
+        miner.mine(block2, blockChain);
+
+        // Third Block
+        Block block3 = new Block(3, "Transaction3", blockChain.getBlockChain().get(blockChain.getSize() - 1).getHash());
+
+        miner.mine(block3, blockChain);
+
+        // Fourth Block
+        Block block4 = new Block(4, "Transaction4", blockChain.getBlockChain().get(blockChain.getSize() - 1).getHash());
+
+        miner.mine(block4, blockChain);
+
+        // Fifth Block
+        Block block5 = new Block(5, "Transaction5", blockChain.getBlockChain().get(blockChain.getSize() - 1).getHash());
+
+        miner.mine(block5, blockChain);
+
+        System.out.println("\n" + "Blockchain: \n" + blockChain);
+        System.out.println("Miner's reward: " + miner.getReward());
     }
 }

src/Constants.java

@@ -4,7 +4,7 @@ private Constants() {
     }
 
     // Difficulty of leading zeros
-    public static final int DIFFICULTY = 1;
+    public static final int DIFFICULTY = 6;
 
     // This is the reward in the underlying Cryptocurrency
     public static final int REWARD = 10;