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May 21, 2020
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68 changes: 68 additions & 0 deletions Sorts/BucketSort.java
Original file line number Diff line number Diff line change
@@ -0,0 +1,68 @@

import java.util.Random;

public class Bucket_Sort
{
static int[] sort(int[] sequence, int maxValue)
{
// Bucket Sort
int[] Bucket = new int[maxValue + 1];
int[] sorted_sequence = new int[sequence.length];

for (int i = 0; i < sequence.length; i++)
Bucket[sequence[i]]++;

int outPos = 0;
for (int i = 0; i < Bucket.length; i++)
for (int j = 0; j < Bucket[i]; j++)
sorted_sequence[outPos++] = i;

return sorted_sequence;
}

static void printSequence(int[] sorted_sequence)
{
for (int i = 0; i < sorted_sequence.length; i++)
System.out.print(sorted_sequence[i] + " ");
}

static int maxValue(int[] sequence)
{
int maxValue = 0;
for (int i = 0; i < sequence.length; i++)
if (sequence[i] > maxValue)
maxValue = sequence[i];
return maxValue;
}

public static void main(String args[])
{
System.out.println("Sorting of randomly generated numbers using BUCKET SORT");
Random random = new Random();
int N = 20;
int[] sequence = new int[N];

for (int i = 0; i < N; i++)
sequence[i] = Math.abs(random.nextInt(100));

int maxValue = maxValue(sequence);

System.out.println("\nOriginal Sequence: ");
printSequence(sequence);

System.out.println("\nSorted Sequence: ");
printSequence(sort(sequence, maxValue));
}
}

#Output:

$ javac Bucket_Sort.java
$ java Bucket_Sort

Sorting of randomly generated numbers using BUCKET SORT

Original Sequence:
95 9 95 87 8 81 18 54 57 53 92 15 38 24 8 56 29 69 64 66
Sorted Sequence:
8 8 9 15 18 24 29 38 53 54 56 57 64 66 69 81 87 92 95 95