commit

Author: diwakar1593

CocktailSort.java

@@ -0,0 +1,79 @@
+// Java program for implementation of Cocktail Sort
+public class CocktailSort 
+{
+	void cocktailSort(int a[])
+	{
+		boolean swapped = true;
+		int start = 0;
+		int end = a.length;
+
+		while (swapped == true) 
+		{
+			// reset the swapped flag on entering the
+			// loop, because it might be true from a
+			// previous iteration.
+			swapped = false;
+
+			// loop from bottom to top same as
+			// the bubble sort.
+			for (int i = start; i < end - 1; ++i) 
+			{
+				if (a[i] > a[i + 1]) {
+					int temp = a[i];
+					a[i] = a[i + 1];
+					a[i + 1] = temp;
+					swapped = true;
+				}
+			}
+
+			// if nothing moved, then array is sorted.
+			if (swapped == false)
+				break;
+
+			// otherwise, reset the swapped flag so that it
+			// can be used in the next stage
+			swapped = false;
+
+			// move the end point back by one, because
+			// item at the end is in its rightful spot
+			end = end - 1;
+
+			// from top to bottom, doing the
+			// same comparison as in the previous stage
+			for (int i = end - 1; i >= start; i--) 
+			{
+				if (a[i] > a[i + 1]) 
+				{
+					int temp = a[i];
+					a[i] = a[i + 1];
+					a[i + 1] = temp;
+					swapped = true;
+				}
+			}
+
+			// increase the starting point, because
+			// the last stage would have moved the next
+			// smallest number to its rightful spot.
+			start = start + 1;
+		}
+	}
+
+	/* Prints the array */
+	void printArray(int a[])
+	{
+		int n = a.length;
+		for (int i = 0; i < n; i++)
+			System.out.print(a[i] + " ");
+		System.out.println();
+	}
+
+	// Driver code
+	public static void main(String[] args)
+	{
+		CocktailSort ob = new CocktailSort();
+		int a[] = { 5, 1, 4, 2, 8, 0, 2 };
+		ob.cocktailSort(a);
+		System.out.println("Sorted array");
+		ob.printArray(a);
+	}
+}

bubblesort.java

@@ -1,35 +1,35 @@
-public class BubbleSortExample {  
-    static void bubbleSort(int[] arr) {  
-        int n = arr.length;  
-        int temp = 0;  
-         for(int i=0; i < n; i++){  
-                 for(int j=1; j < (n-i); j++){  
-                          if(arr[j-1] > arr[j]){  
-                                 //swap elements  
-                                 temp = arr[j-1];  
-                                 arr[j-1] = arr[j];  
-                                 arr[j] = temp;  
-                         }  
-                          
-                 }  
-         }  
-  
-    }  
-    public static void main(String[] args) {  
-                int arr[] ={3,60,35,2,45,320,5};  
-                 
-                System.out.println("Array Before Bubble Sort");  
-                for(int i=0; i < arr.length; i++){  
-                        System.out.print(arr[i] + " ");  
-                }  
-                System.out.println();  
-                  
-                bubbleSort(arr);//sorting array elements using bubble sort  
-                 
-                System.out.println("Array After Bubble Sort");  
-                for(int i=0; i < arr.length; i++){  
-                        System.out.print(arr[i] + " ");  
-                }  
-   
-        }  
+public class BubbleSortExample {  
+    static void bubbleSort(int[] arr) {  
+        int n = arr.length;  
+        int temp = 0;  
+         for(int i=0; i < n; i++){  
+                 for(int j=1; j < (n-i); j++){  
+                          if(arr[j-1] > arr[j]){  
+                                 //swap elements  
+                                 temp = arr[j-1];  
+                                 arr[j-1] = arr[j];  
+                                 arr[j] = temp;  
+                         }  
+                          
+                 }  
+         }  
+  
+    }  
+    public static void main(String[] args) {  
+                int arr[] ={3,60,35,2,45,320,5};  
+                 
+                System.out.println("Array Before Bubble Sort");  
+                for(int i=0; i < arr.length; i++){  
+                        System.out.print(arr[i] + " ");  
+                }  
+                System.out.println();  
+                  
+                bubbleSort(arr);//sorting array elements using bubble sort  
+                 
+                System.out.println("Array After Bubble Sort");  
+                for(int i=0; i < arr.length; i++){  
+                        System.out.print(arr[i] + " ");  
+                }  
+   
+        }  
 }