diff --git a/DSA_JAVA/InsertionSort.java b/DSA_JAVA/InsertionSort.java
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+++ b/DSA_JAVA/InsertionSort.java
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+// Insertion sort in Java
+
+import java.util.Arrays;
+
+class InsertionSort {
+
+  void insertionSort(int array[]) {
+
+    int size = array.length;
+
+    for (int step = 1; step < size; step++) {
+
+      int key = array[step];
+
+      int j = step - 1;
+
+      // Compare key with each element on the left of it until an element smaller than
+
+      // it is found.
+
+      // For descending order, change key<array[j] to key>array[j].
+
+      while (j >= 0 && key < array[j]) {
+
+        array[j + 1] = array[j];
+
+        --j;
+
+      }
+
+      // Place key at after the element just smaller than it.
+
+      array[j + 1] = key;
+
+    }
+
+  }
+
+  // Driver code
+
+  public static void main(String args[]) {
+
+    int[] data = { 9, 5, 1, 4, 3 };
+
+    InsertionSort is = new InsertionSort();
+
+    is.insertionSort(data);
+
+    System.out.println("Sorted Array in Ascending Order: ");
+
+    System.out.println(Arrays.toString(data));
+
+  }
+
+}