docs: added comments on bit masking

yeoshuheng · yeoshuheng · commit 3b3aacd63772 · 2023-10-21T20:22:59.000+08:00
diff --git a/src/main/java/algorithms/sorting/radixSort/RadixSort.java b/src/main/java/algorithms/sorting/radixSort/RadixSort.java
@@ -17,6 +17,7 @@ public class RadixSort {
    * @return The value of the digit in the number at the given segment.
    */
   private static int getSegmentMasked(int num, int segment) {
+    // Bit masking here to extract each segment from the integer.
     int mask = ((1 << NUM_BITS) - 1) << (segment * NUM_BITS);
     return (num & mask) >> (segment * NUM_BITS);
   }

Original file line number	Diff line number	Diff line change
`@@ -17,6 +17,7 @@ public class RadixSort {`
`17`	`17`	`* @return The value of the digit in the number at the given segment.`
`18`	`18`	`*/`
`19`	`19`	`private static int getSegmentMasked(int num, int segment) {`
	`20`	`+ // Bit masking here to extract each segment from the integer.`
`20`	`21`	`int mask = ((1 << NUM_BITS) - 1) << (segment * NUM_BITS);`
`21`	`22`	`return (num & mask) >> (segment * NUM_BITS);`
`22`	`23`	`}`