added radix sort to your sorts in src/sortingandsearching

src/algo/sortingandsearching/radix sort.java

@@ -0,0 +1,59 @@
+package pers.jack.sort;
+
+
+import java.util.*;
+
+
+public class Radixsort {
+
+
+		public static void main(String[] args) {
+		int arr[] = { 170, 45, 75, 90, 802, 24, 2, 66 };
+		Print(arr);
+		System.out.println();
+		RADIXsort(arr);
+		Print(arr);
+	}
+
+	public static int getMax(int arr[]) {
+		int MAX = arr[0];
+		for (int i = 1; i < arr.length; i++)
+			if (arr[i] > MAX)
+				MAX = arr[i];
+		return MAX;
+	}
+
+	public static void COUNT_RAD(int arr[], int exp) {
+		int output[] = new int[arr.length];
+		int i;
+		int count[] = new int[10];
+		Arrays.fill(count, 0);
+
+		for (i = 0; i < arr.length; i++)
+			count[(arr[i] / exp) % 10]++;
+
+		for (i = 1; i < 10; i++)
+			count[i] += count[i - 1];
+
+		for (i = arr.length - 1; i >= 0; i--) {
+			output[count[(arr[i] / exp) % 10] - 1] = arr[i];
+			count[(arr[i] / exp) % 10]--;
+		}
+
+		for (i = 0; i < arr.length; i++)
+			arr[i] = output[i];
+	}
+
+	public static void RADIXsort(int arr[]) {
+		int m = getMax(arr);
+//////////////LEAST SIGNIFICANT///////////////////
+		for (int exp = 1; m / exp > 0; exp *= 10)
+			COUNT_RAD(arr, exp);
+	}
+
+	public static void Print(int arr[]) {
+		for (int i = 0; i < arr.length; i++)
+			System.out.print(arr[i] + " ");
+	}
+
+}