diff --git a/LeetCode/Algorithms/Easy/IsSubsequence/IsSubsequence.java b/LeetCode/Algorithms/Easy/IsSubsequence/IsSubsequence.java
new file mode 100644
index 0000000..a512fb4
--- /dev/null
+++ b/LeetCode/Algorithms/Easy/IsSubsequence/IsSubsequence.java
@@ -0,0 +1,40 @@
+public class IsSubsequence {
+    public boolean isSubsequence(String s, String t) {
+        if (s.isEmpty())
+            return true;
+        if (t.isEmpty())
+            return false;
+        int i = 0; // s pointer
+        int j = 0;  // t pointer
+        while (i != s.length() && j != t.length()) {
+            if (s.charAt(i) == t.charAt(j)) {
+                i++;
+            }
+            j++;
+        }
+        if (i == s.length())
+            return true;
+        return false;
+    }
+
+    public boolean isSubsequence_II(String s, String t) {
+        if (s.length() == 0)
+            return true;
+        int i = 0, j = 0;
+        while (j < t.length()) {
+            char a = s.charAt(i);
+            char b = t.charAt(j);
+
+            if (a == b) {
+                i++;
+
+                if (i == s.length()) {
+                    return true;
+                }
+            }
+            j++;
+        }
+        return false;
+    }
+}
+