Added Insertion Sort in java

Author: KeerthanaPravallika

Sorting Algorithms/InsertionSort.java

@@ -0,0 +1,49 @@
+import java.util.Scanner;
+
+public class InsertionSort
+{
+    static void insertionSort(int arr[], int n)
+    {
+        int i,j,temp;
+        for(i=0;i<n;i++)
+        {
+            temp = arr[i];
+            j = i-1;
+            while(j >=0 && arr[j] > temp)
+            {
+                arr[j+1] = arr[j];
+                j--;
+            }
+            arr[j+1] = temp;
+        }
+    }
+    public static void main(String[] args)
+    {
+        int size,i;
+        System.out.println("Enter the size of the array : ");
+        Scanner sc = new Scanner(System.in);
+        size = sc.nextInt();
+        int arr[] = new int[size];
+        System.out.println("\nEnter "+size+" elements : ");
+        for(i=0;i<size;i++)
+        {
+           arr[i] = sc.nextInt();
+        }
+        System.out.println("\nBefore sorting : ");
+        for(i=0;i<size;i++)
+        {
+            System.out.print(arr[i]+" ");
+        }
+        insertionSort(arr,size);
+        System.out.println("\nAfter sorting : ");
+        for(i=0;i<size;i++)
+        {
+            System.out.print(arr[i]+" ");
+        }
+
+    }
+}
+
+
+
+