Radix Sort Program in Java

This is a Java Program to implement Radix Sort Algorithm. This program is to sort a list of numbers.
Here is the source code of the Java program to implement Radix Sort Algorithm. The Java program is successfully compiled and run on a Windows system. The program output is also shown below.

```
/**
```

 ** Java Program to Implement Radix Sort

```
 **/
```
```
 
```
```
import java.util.Scanner;
```
```
 
```
```
/** Class RadixSort **/
```
```
public class RadixSort 
```
```
{
```
```
    /** Radix Sort function **/
```
```
    public static void sort( int[] a)
```
```
    {
```

        int i, m = a[0], exp = 1, n = a.length;

```
        int[] b = new int[n];
```
```
        for (i = 1; i < n; i++)
```
```
            if (a[i] > m)
```
```
                m = a[i];
```
```
        while (m / exp > 0)
```
```
        {
```
```
            int[] bucket = new int[10];
```
```
 
```
```
            for (i = 0; i < n; i++)
```

                bucket[(a[i] / exp) % 10]++;

```
            for (i = 1; i < 10; i++)
```

                bucket[i] += bucket[i - 1];

            for (i = n - 1; i >= 0; i--)

                b[--bucket[(a[i] / exp) % 10]] = a[i];

```
            for (i = 0; i < n; i++)
```
```
                a[i] = b[i];
```
```
            exp *= 10;        
```
```
        }
```
```
    }    
```
```
    /** Main method **/
```

    public static void main(String[] args)

```
    {
```

        Scanner scan = new Scanner( System.in );

        System.out.println("Radix Sort Test\n");

```
        int n, i;
```

        /** Accept number of elements **/

        System.out.println("Enter number of integer elements");

```
        n = scan.nextInt();
```

        /** Create integer array on n elements **/

```
        int arr[] = new int[ n ];
```
```
        /** Accept elements **/
```

        System.out.println("\nEnter "+ n +" integer elements");

```
        for (i = 0; i < n; i++)
```
```
            arr[i] = scan.nextInt();
```
```
        /** Call method sort **/
```
```
        sort(arr);
```
```
        /** Print sorted Array **/
```

        System.out.println("\nElements after sorting ");

```
        for (i = 0; i < n; i++)
```

            System.out.print(arr[i]+" ");

        System.out.println();

```
    }    
```
```
}
```

Radix Sort Test
 
Enter number of integer elements
10
 
Enter 10 integer elements
877 567 3456 876 467 26 934 9876 1 4567
 
Elements after sorting
1 26 467 567 876 877 934 3456 4567 9876