diff --git a/InsertionSort.java b/InsertionSort.java
new file mode 100644
index 0000000..ecae2d9
--- /dev/null
+++ b/InsertionSort.java
@@ -0,0 +1,20 @@
+public class InsertionSort
+{
+	private static void exch(in[]a,int i,int j)
+	{
+		int t=a[i];
+		a[i]=a[j];
+		a[j]=t;
+	}
+	public void sort(int[]a)
+	{
+		int N=a.length;
+		for(int i=1;i<N;i++)
+		{
+			for(int j=i;j>0&&a[j]<a[j-1];j--)
+			{
+				exch(a,j,j-1);
+			}
+		}
+	}
+}