Merge pull request #208 from Taranpreet1407/blackboxai/add-bubble-sort

Add BubbleSort.java with bubble sort algorithm implementation

Author: Pradeepsingh61

Java/algorithms/sorting/BubbleSort.java

@@ -0,0 +1,51 @@
+import java.util.Scanner;
+
+public class BubbleSort {
+
+    public static int[] arrInput(Scanner sc) {
+        System.out.print("Enter the size of the array: ");
+        int n = sc.nextInt();
+        int[] arr = new int[n];
+        System.out.println("Enter the elements of the array: ");
+        for (int i = 0; i < n; i++) {
+            arr[i] = sc.nextInt();
+        }
+        return arr;
+    }
+
+    public static void bubbleSort(int[] arr) {
+        int n = arr.length;
+        for (int i = 0; i < n - 1; i++) {
+            for (int j = 0; j < n - i - 1; j++) {
+                if (arr[j] > arr[j + 1]) {
+                    // swap arr[j] and arr[j+1]
+                    int temp = arr[j];
+                    arr[j] = arr[j + 1];
+                    arr[j + 1] = temp;
+                }
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+
+        int[] arr = arrInput(sc);
+
+        System.out.print("Array before sorting: ");
+        for (int num : arr) {
+            System.out.print(num + " ");
+        }
+        System.out.println();
+
+        bubbleSort(arr);
+
+        System.out.print("Array after sorting: ");
+        for (int num : arr) {
+            System.out.print(num + " ");
+        }
+        System.out.println();
+
+        sc.close();
+    }
+}