diff --git a/Java/Program-16/CSAOfCylinder.class b/Java/Program-16/CSAOfCylinder.class
new file mode 100644
index 00000000..faaea7ba
Binary files /dev/null and b/Java/Program-16/CSAOfCylinder.class differ
diff --git a/Java/Program-16/CSAOfCylinder.java b/Java/Program-16/CSAOfCylinder.java
new file mode 100644
index 00000000..3c2d563c
--- /dev/null
+++ b/Java/Program-16/CSAOfCylinder.java
@@ -0,0 +1,14 @@
+package com.dsa;
+
+import java.util.Scanner;
+
+public class CSAOfCylinder {
+    public static void main(String[] args) {
+        Scanner input=new Scanner(System.in);
+        System.out.println("Enter radius and height of cylinder");
+        float radius=input.nextFloat();
+        float height=input.nextFloat();
+        float CSA=2*3.14f*radius*height;
+        System.out.println("Curved surface area of cylinder is "+CSA+" square units");
+    }
+}
\ No newline at end of file
diff --git a/Java/Program-16/README.md b/Java/Program-16/README.md
new file mode 100644
index 00000000..42d29ac9
--- /dev/null
+++ b/Java/Program-16/README.md
@@ -0,0 +1,3 @@
+Program 16
+
+Program to find CSA of Cylinder
\ No newline at end of file
diff --git a/Java/Program-17/ReverseString.java b/Java/Program-17/ReverseString.java
new file mode 100644
index 00000000..a9cabfbe
--- /dev/null
+++ b/Java/Program-17/ReverseString.java
@@ -0,0 +1,17 @@
+package com.dsa;
+
+import java.util.Scanner;
+
+public class ReverseString {
+    public static void main(String[] args) {
+        Scanner input=new Scanner(System.in);
+        String reversed_string="";
+        System.out.println("Enter the string");
+        String string= input.next();
+        for(int i=string.length()-1;i>=0;i--){
+            reversed_string = reversed_string + string.charAt(i);
+        }
+        System.out.println("The original string is "+string);
+        System.out.println("The reversed string is "+reversed_string);
+    }
+}
\ No newline at end of file
diff --git a/Java/Program-17/readme.md b/Java/Program-17/readme.md
new file mode 100644
index 00000000..fa231970
--- /dev/null
+++ b/Java/Program-17/readme.md
@@ -0,0 +1,3 @@
+Program 17 
+
+Program to reverse a given string
diff --git a/Java/Readme.md b/Java/Readme.md
index 210a50d1..a3a554ab 100644
--- a/Java/Readme.md
+++ b/Java/Readme.md
@@ -17,6 +17,13 @@
 | [Program-11](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-11/Program.java) | Program for compound interest
 | [Program-12](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-12/Program-12.java) | Print number of vowels and consonants in a string
 | [Program-13](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-13/Program%20Number%20to%20Word.java) | Program to convert number into words
+| [Program-14](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-14/Program%20Number%20to%20Word.java) | Program to convert decimal to binary
+| [Program-15](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-15/Program%20Number%20to%20Word.java) | Program to convert decimal number to equivalenr binary number
+| [Program-16](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-16/Program%20Number%20to%20Word.java) | Program to find CSA of cylinder
+| [Program-17](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-17/Program%20Number%20to%20Word.java) | Program to reverse a given string
+| [Program-18](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-18/Program%20Number%20to%20Word.java) | Program to calculate electricity bill
+| [Program-19](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-19/Program%20Number%20to%20Word.java) | Program to calculate discount
+| [Program-20](https://github.com/swaaz/basicprograms/blob/814a1e60ae23d81158d8174666f23c9b7419e15e/Java/Program-20/Program%20Number%20to%20Word.java) | Program to calculate batting average
   
  </div>