docs(Others): update countwords.java and crc32.java

- By @yanglbme

Others/countwords.java

@@ -1,13 +1,12 @@
 import java.util.Scanner;
 
 /**
- * You enter a string into this program, and it will return how
- * many words were in that particular string
+ * You enter a string into this program, and it will return how many words were
+ * in that particular string
  *
  * @author Marcus
- *
  */
-  public class countwords{
+public class CountWords {
 
   public static void main(String[] args) {
     Scanner input = new Scanner(System.in);
@@ -19,7 +18,8 @@ import java.util.Scanner;
   }
 
   private static int wordCount(String s) {
-          if(s.isEmpty() || s == null) return 0;
+    if (s == null || s.isEmpty())
+      return 0;
     return s.trim().split("[\\s]+").length;
   }
 

Others/crc32.java

@@ -1,7 +1,9 @@
 import java.util.BitSet;
 
-//Generates a crc32 checksum for a given string or byte array
-public class crc32 {
+/**
+ * Generates a crc32 checksum for a given string or byte array
+ */
+public class CRC32 {
 
     public static void main(String[] args) {
         System.out.println(Integer.toHexString(crc32("Hello World")));
@@ -16,7 +18,7 @@ public class crc32 {
         int crc32 = 0xFFFFFFFF; // initial value
         for (int i = 0; i < data.length * 8; i++) {
             if (((crc32 >>> 31) & 1) != (bitSet.get(i) ? 1 : 0))
-                crc32 = (crc32 << 1) ^ 0x04C11DB7;        //xoring with polynomial
+                crc32 = (crc32 << 1) ^ 0x04C11DB7; // xor with polynomial
             else
                 crc32 = (crc32 << 1);
         }